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IPV4

143.159.0.0/16

Record found
Retrieved · 23 Sep 2026, 10:40 UTC1 sourceView JSON
Click a domain or IP to look it up.
01

Registry record

RDAPhttps://rdap.arin.net/registry/ip/143.159.0.0/16
Record found
Record ID
NET-143-159-0-0-1
Network name
PLUSNET4
Address range
143.159.0.0143.159.255.255
CIDR blocks
143.159.0.0/16
Network type
DIRECT ALLOCATION
Parent network
NET-143-0-0-0-0
Last changed
2015-04-27T05:04:49-04:00
Registered
1990-09-26T00:00:00-04:00
Status
active
Notices & terms 3

Terms of Service

By using the ARIN RDAP/Whois service, you are agreeing to the RDAP/Whois Terms of Use https://www.arin.net/resources/registry/whois/tou/

Whois Inaccuracy Reporting

If you see inaccuracies in the results, please visit: https://www.arin.net/resources/registry/whois/inaccuracy_reporting/

Copyright Notice

Copyright 1997-2026, American Registry for Internet Numbers, Ltd.

Organizations & contacts

6
Organization / registrant
INFONET Services Corporation
INFO
Address
2160 East Grand Avenue El Segundo CA 90245-1022 United States
Type
org

Registry · rdap.arin.net

Administrative · Routing
Matthias Manfred Blum
MMB12-ARIN
Address
Telecomlaan 9 Diegem NA B-1831 Belgium
Name
Blum Matthias Manfred
Type
individual
Email
matthias.blum@bt.com
Phone (work, voice)
+3227002851

Registry · rdap.arin.net

Technical · Abuse
American Registry for IP Numbers -Point of Contact
AR2-ORG-ARIN
Address
2160 East Grand Avenue El Segundo CA 90245-1022 United States
Organization
Infonet Services Corporation
Type
group
Email
matthias.blum@bt.com
Email
ipadmin@bt.com
Email
peering@bt.com
Phone (work, voice)
+1-310-335-2600
Fax
+1-310-322-0310

Registry · rdap.arin.net

Technical
Yasser Hourie
HOURI23-ARIN
Address
Telecomlaan 9 Diegem Not applicable 1931 Belgium
Name
Hourie Yasser
Type
individual
Email
yasser.hourie@bt.com
Phone (work, voice)
+32499582550

Registry · rdap.arin.net

Technical
Chun Lau
LAUCH9-ARIN
Address
1 Braham Street London E1 8EE United Kingdom
Name
Lau Chun
Type
individual
Email
chun.lau@bt.com
Phone (work, voice)
+44207356 5000

Registry · rdap.arin.net

Abuse
Plusnet Abuse
PLUSN-ARIN
Address
PlusNet Plc The Balance 2 Pinfold Street Sheffield S1 2GU United Kingdom
Organization
Plusnet plc
Type
group
Email
abuse@plus.net
Phone (work, voice)
+440845 140 0200
Registration Comments
Abuse contact only

Registry · rdap.arin.net

Route / route6 records IRR

rr.arin.net:43

BGP observations →

Exact and covering objects from ARIN. These are registered routing policies; they do not confirm a live announcement.

Origin
AS6871
Source
ARIN

Plusnet

Routing object details
route: 143.159.0.0/16
origin: AS6871
descr: Plusnet
admin-c: MMB12-ARIN
tech-c: AR2-ORG-ARIN
tech-c: HOURI23-ARIN
tech-c: LAUCH9-ARIN
tech-c: MMB12-ARIN
mnt-by: MNT-INFO
created: 2025-07-29T09:21:17Z
last-modified: 2025-08-01T09:45:46Z
source: ARIN
Registry · RDAP Original response
https://rdap.arin.net/registry/ip/143.159.0.0/16
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    "arin_originas0_originautnums": [],
    "cidr0_cidrs": [
        {
            "v4prefix": "143.159.0.0",
            "length": 16
        }
    ],
    "endAddress": "143.159.255.255",
    "entities": [
        {
            "entities": [
                {
                    "events": [
                        {
                            "eventAction": "last changed",
                            "eventDate": "2026-07-09T03:38:39-04:00"
                        },
                        {
                            "eventAction": "registration",
                            "eventDate": "1999-02-10T16:11:48-05:00"
                        }
                    ],
                    "handle": "AR2-ORG-ARIN",
                    "links": [
                        {
                            "href": "https://rdap.arin.net/registry/entity/AR2-ORG-ARIN",
                            "rel": "self",
                            "type": "application/rdap+json",
                            "value": "https://rdap.arin.net/registry/ip/143.159.0.0/16"
                        },
                        {
                            "href": "https://whois.arin.net/rest/poc/AR2-ORG-ARIN",
                            "rel": "alternate",
                            "type": "application/xml",
                            "value": "https://rdap.arin.net/registry/ip/143.159.0.0/16"
                        }
                    ],
                    "objectClassName": "entity",
                    "port43": "whois.arin.net",
                    "roles": [
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                    ],
                    "status": [
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                    "vcardArray": [
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                            [
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                            ],
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                                },
                                "text",
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                                    "",
                                    "",
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                                ]
                            ],
                            [
                                "fn",
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                                "text",
                                "American Registry for IP Numbers -Point of Contact"
                            ],
                            [
                                "org",
                                [],
                                "text",
                                "Infonet Services Corporation"
                            ],
                            [
                                "kind",
                                [],
                                "text",
                                "group"
                            ],
                            [
                                "email",
                                [],
                                "text",
                                "matthias.blum@bt.com"
                            ],
                            [
                                "email",
                                [],
                                "text",
                                "ipadmin@bt.com"
                            ],
                            [
                                "email",
                                [],
                                "text",
                                "peering@bt.com"
                            ],
                            [
                                "tel",
                                {
                                    "type": [
                                        "work",
                                        "voice"
                                    ]
                                },
                                "text",
                                "+1-310-335-2600"
                            ],
                            [
                                "tel",
                                {
                                    "type": [
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                                        "fax"
                                    ]
                                },
                                "text",
                                "+1-310-322-0310"
                            ]
                        ]
                    ]
                },
                {
                    "events": [
                        {
                            "eventAction": "last changed",
                            "eventDate": "2025-10-29T08:25:46-04:00"
                        },
                        {
                            "eventAction": "registration",
                            "eventDate": "2011-06-30T10:32:23-04:00"
                        }
                    ],
                    "handle": "MMB12-ARIN",
                    "links": [
                        {
                            "href": "https://rdap.arin.net/registry/entity/MMB12-ARIN",
                            "rel": "self",
                            "type": "application/rdap+json",
                            "value": "https://rdap.arin.net/registry/ip/143.159.0.0/16"
                        },
                        {
                            "href": "https://whois.arin.net/rest/poc/MMB12-ARIN",
                            "rel": "alternate",
                            "type": "application/xml",
                            "value": "https://rdap.arin.net/registry/ip/143.159.0.0/16"
                        }
                    ],
                    "objectClassName": "entity",
                    "port43": "whois.arin.net",
                    "roles": [
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                    ],
                    "status": [
                        "validated"
                    ],
                    "vcardArray": [
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                            [
                                "version",
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                                "4.0"
                            ],
                            [
                                "adr",
                                {
                                    "label": "Telecomlaan 9\nDiegem\nNA\nB-1831\nBelgium"
                                },
                                "text",
                                [
                                    "",
                                    "",
                                    "",
                                    "",
                                    "",
                                    "",
                                    ""
                                ]
                            ],
                            [
                                "fn",
                                [],
                                "text",
                                "Matthias Manfred Blum"
                            ],
                            [
                                "n",
                                [],
                                "text",
                                [
                                    "Blum",
                                    "Matthias",
                                    "Manfred",
                                    "",
                                    ""
                                ]
                            ],
                            [
                                "kind",
                                [],
                                "text",
                                "individual"
                            ],
                            [
                                "email",
                                [],
                                "text",
                                "matthias.blum@bt.com"
                            ],
                            [
                                "tel",
                                {
                                    "type": [
                                        "work",
                                        "voice"
                                    ]
                                },
                                "text",
                                "+3227002851"
                            ]
                        ]
                    ]
                },
                {
                    "events": [
                        {
                            "eventAction": "last changed",
                            "eventDate": "2025-06-30T04:22:17-04:00"
                        },
                        {
                            "eventAction": "registration",
                            "eventDate": "2022-06-13T11:38:26-04:00"
                        }
                    ],
                    "handle": "HOURI23-ARIN",
                    "links": [
                        {
                            "href": "https://rdap.arin.net/registry/entity/HOURI23-ARIN",
                            "rel": "self",
                            "type": "application/rdap+json",
                            "value": "https://rdap.arin.net/registry/ip/143.159.0.0/16"
                        },
                        {
                            "href": "https://whois.arin.net/rest/poc/HOURI23-ARIN",
                            "rel": "alternate",
                            "type": "application/xml",
                            "value": "https://rdap.arin.net/registry/ip/143.159.0.0/16"
                        }
                    ],
                    "objectClassName": "entity",
                    "port43": "whois.arin.net",
                    "roles": [
                        "technical"
                    ],
                    "status": [
                        "validated"
                    ],
                    "vcardArray": [
                        "vcard",
                        [
                            [
                                "version",
                                [],
                                "text",
                                "4.0"
                            ],
                            [
                                "adr",
                                {
                                    "label": "Telecomlaan 9\nDiegem\nNot applicable\n1931\nBelgium"
                                },
                                "text",
                                [
                                    "",
                                    "",
                                    "",
                                    "",
                                    "",
                                    "",
                                    ""
                                ]
                            ],
                            [
                                "fn",
                                [],
                                "text",
                                "Yasser Hourie"
                            ],
                            [
                                "n",
                                [],
                                "text",
                                [
                                    "Hourie",
                                    "Yasser",
                                    "",
                                    "",
                                    ""
                                ]
                            ],
                            [
                                "kind",
                                [],
                                "text",
                                "individual"
                            ],
                            [
                                "email",
                                [],
                                "text",
                                "yasser.hourie@bt.com"
                            ],
                            [
                                "tel",
                                {
                                    "type": [
                                        "work",
                                        "voice"
                                    ]
                                },
                                "text",
                                "+32499582550"
                            ]
                        ]
                    ]
                },
                {
                    "events": [
                        {
                            "eventAction": "last changed",
                            "eventDate": "2026-07-31T07:04:16-04:00"
                        },
                        {
                            "eventAction": "registration",
                            "eventDate": "2025-08-01T05:33:56-04:00"
                        }
                    ],
                    "handle": "LAUCH9-ARIN",
                    "links": [
                        {
                            "href": "https://rdap.arin.net/registry/entity/LAUCH9-ARIN",
                            "rel": "self",
                            "type": "application/rdap+json",
                            "value": "https://rdap.arin.net/registry/ip/143.159.0.0/16"
                        },
                        {
                            "href": "https://whois.arin.net/rest/poc/LAUCH9-ARIN",
                            "rel": "alternate",
                            "type": "application/xml",
                            "value": "https://rdap.arin.net/registry/ip/143.159.0.0/16"
                        }
                    ],
                    "objectClassName": "entity",
                    "port43": "whois.arin.net",
                    "roles": [
                        "technical"
                    ],
                    "status": [
                        "validated"
                    ],
                    "vcardArray": [
                        "vcard",
                        [
                            [
                                "version",
                                [],
                                "text",
                                "4.0"
                            ],
                            [
                                "adr",
                                {
                                    "label": "1 Braham Street \n\nLondon\n\nE1 8EE\nUnited Kingdom"
                                },
                                "text",
                                [
                                    "",
                                    "",
                                    "",
                                    "",
                                    "",
                                    "",
                                    ""
                                ]
                            ],
                            [
                                "fn",
                                [],
                                "text",
                                "Chun Lau"
                            ],
                            [
                                "n",
                                [],
                                "text",
                                [
                                    "Lau",
                                    "Chun",
                                    "",
                                    "",
                                    ""
                                ]
                            ],
                            [
                                "kind",
                                [],
                                "text",
                                "individual"
                            ],
                            [
                                "email",
                                [],
                                "text",
                                "chun.lau@bt.com"
                            ],
                            [
                                "tel",
                                {
                                    "type": [
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                                        "voice"
                                    ]
                                },
                                "text",
                                "+44207356 5000"
                            ]
                        ]
                    ]
                }
            ],
            "events": [
                {
                    "eventAction": "last changed",
                    "eventDate": "2025-08-01T05:45:45-04:00"
                }
            ],
            "handle": "INFO",
            "links": [
                {
                    "href": "https://rdap.arin.net/registry/entity/INFO",
                    "rel": "self",
                    "type": "application/rdap+json",
                    "value": "https://rdap.arin.net/registry/ip/143.159.0.0/16"
                },
                {
                    "href": "https://whois.arin.net/rest/org/INFO",
                    "rel": "alternate",
                    "type": "application/xml",
                    "value": "https://rdap.arin.net/registry/ip/143.159.0.0/16"
                }
            ],
            "objectClassName": "entity",
            "port43": "whois.arin.net",
            "roles": [
                "registrant"
            ],
            "vcardArray": [
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                [
                    [
                        "version",
                        [],
                        "text",
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                    ],
                    [
                        "fn",
                        [],
                        "text",
                        "INFONET Services Corporation"
                    ],
                    [
                        "adr",
                        {
                            "label": "2160 East Grand Avenue\nEl Segundo\nCA\n90245-1022\nUnited States"
                        },
                        "text",
                        [
                            "",
                            "",
                            "",
                            "",
                            "",
                            "",
                            ""
                        ]
                    ],
                    [
                        "kind",
                        [],
                        "text",
                        "org"
                    ]
                ]
            ]
        },
        {
            "events": [
                {
                    "eventAction": "last changed",
                    "eventDate": "2026-07-09T03:38:39-04:00"
                },
                {
                    "eventAction": "registration",
                    "eventDate": "1999-02-10T16:11:48-05:00"
                }
            ],
            "handle": "AR2-ORG-ARIN",
            "links": [
                {
                    "href": "https://rdap.arin.net/registry/entity/AR2-ORG-ARIN",
                    "rel": "self",
                    "type": "application/rdap+json",
                    "value": "https://rdap.arin.net/registry/ip/143.159.0.0/16"
                },
                {
                    "href": "https://whois.arin.net/rest/poc/AR2-ORG-ARIN",
                    "rel": "alternate",
                    "type": "application/xml",
                    "value": "https://rdap.arin.net/registry/ip/143.159.0.0/16"
                }
            ],
            "objectClassName": "entity",
            "port43": "whois.arin.net",
            "roles": [
                "technical"
            ],
            "status": [
                "validated"
            ],
            "vcardArray": [
                "vcard",
                [
                    [
                        "version",
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                        "text",
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                    ],
                    [
                        "adr",
                        {
                            "label": "2160 East Grand Avenue\nEl Segundo\nCA\n90245-1022\nUnited States"
                        },
                        "text",
                        [
                            "",
                            "",
                            "",
                            "",
                            "",
                            "",
                            ""
                        ]
                    ],
                    [
                        "fn",
                        [],
                        "text",
                        "American Registry for IP Numbers -Point of Contact"
                    ],
                    [
                        "org",
                        [],
                        "text",
                        "Infonet Services Corporation"
                    ],
                    [
                        "kind",
                        [],
                        "text",
                        "group"
                    ],
                    [
                        "email",
                        [],
                        "text",
                        "matthias.blum@bt.com"
                    ],
                    [
                        "email",
                        [],
                        "text",
                        "ipadmin@bt.com"
                    ],
                    [
                        "email",
                        [],
                        "text",
                        "peering@bt.com"
                    ],
                    [
                        "tel",
                        {
                            "type": [
                                "work",
                                "voice"
                            ]
                        },
                        "text",
                        "+1-310-335-2600"
                    ],
                    [
                        "tel",
                        {
                            "type": [
                                "work",
                                "fax"
                            ]
                        },
                        "text",
                        "+1-310-322-0310"
                    ]
                ]
            ]
        },
        {
            "events": [
                {
                    "eventAction": "last changed",
                    "eventDate": "2025-10-29T08:26:14-04:00"
                },
                {
                    "eventAction": "registration",
                    "eventDate": "2014-05-07T06:04:36-04:00"
                }
            ],
            "handle": "PLUSN-ARIN",
            "links": [
                {
                    "href": "https://rdap.arin.net/registry/entity/PLUSN-ARIN",
                    "rel": "self",
                    "type": "application/rdap+json",
                    "value": "https://rdap.arin.net/registry/ip/143.159.0.0/16"
                },
                {
                    "href": "https://whois.arin.net/rest/poc/PLUSN-ARIN",
                    "rel": "alternate",
                    "type": "application/xml",
                    "value": "https://rdap.arin.net/registry/ip/143.159.0.0/16"
                }
            ],
            "objectClassName": "entity",
            "port43": "whois.arin.net",
            "remarks": [
                {
                    "description": [
                        "Abuse contact only"
                    ],
                    "title": "Registration Comments"
                }
            ],
            "roles": [
                "abuse"
            ],
            "status": [
                "validated"
            ],
            "vcardArray": [
                "vcard",
                [
                    [
                        "version",
                        [],
                        "text",
                        "4.0"
                    ],
                    [
                        "adr",
                        {
                            "label": "PlusNet Plc\r\nThe Balance\r\n2 Pinfold Street\nSheffield\n\nS1 2GU\nUnited Kingdom"
                        },
                        "text",
                        [
                            "",
                            "",
                            "",
                            "",
                            "",
                            "",
                            ""
                        ]
                    ],
                    [
                        "fn",
                        [],
                        "text",
                        "Plusnet Abuse"
                    ],
                    [
                        "org",
                        [],
                        "text",
                        "Plusnet plc"
                    ],
                    [
                        "kind",
                        [],
                        "text",
                        "group"
                    ],
                    [
                        "email",
                        [],
                        "text",
                        "abuse@plus.net"
                    ],
                    [
                        "tel",
                        {
                            "type": [
                                "work",
                                "voice"
                            ]
                        },
                        "text",
                        "+440845 140 0200"
                    ]
                ]
            ]
        }
    ],
    "events": [
        {
            "eventAction": "last changed",
            "eventDate": "2015-04-27T05:04:49-04:00"
        },
        {
            "eventAction": "registration",
            "eventDate": "1990-09-26T00:00:00-04:00"
        }
    ],
    "handle": "NET-143-159-0-0-1",
    "ipVersion": "v4",
    "links": [
        {
            "href": "https://rdap.arin.net/registry/ip/143.159.0.0",
            "rel": "self",
            "type": "application/rdap+json",
            "value": "https://rdap.arin.net/registry/ip/143.159.0.0/16"
        },
        {
            "href": "https://whois.arin.net/rest/net/NET-143-159-0-0-1",
            "rel": "alternate",
            "type": "application/xml",
            "value": "https://rdap.arin.net/registry/ip/143.159.0.0/16"
        }
    ],
    "name": "PLUSNET4",
    "notices": [
        {
            "description": [
                "By using the ARIN RDAP/Whois service, you are agreeing to the RDAP/Whois Terms of Use"
            ],
            "links": [
                {
                    "href": "https://www.arin.net/resources/registry/whois/tou/",
                    "rel": "terms-of-service",
                    "type": "text/html",
                    "value": "https://rdap.arin.net/registry/ip/143.159.0.0/16"
                }
            ],
            "title": "Terms of Service"
        },
        {
            "description": [
                "If you see inaccuracies in the results, please visit: "
            ],
            "links": [
                {
                    "href": "https://www.arin.net/resources/registry/whois/inaccuracy_reporting/",
                    "rel": "inaccuracy-report",
                    "type": "text/html",
                    "value": "https://rdap.arin.net/registry/ip/143.159.0.0/16"
                }
            ],
            "title": "Whois Inaccuracy Reporting"
        },
        {
            "description": [
                "Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
            ],
            "title": "Copyright Notice"
        }
    ],
    "objectClassName": "ip network",
    "parentHandle": "NET-143-0-0-0-0",
    "port43": "whois.arin.net",
    "rdapConformance": [
        "nro_rdap_profile_0",
        "rdap_level_0",
        "cidr0",
        "arin_originas0"
    ],
    "startAddress": "143.159.0.0",
    "status": [
        "active"
    ],
    "type": "DIRECT ALLOCATION"
}