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IPV4

42.1.76.0/23

Record found
Retrieved · 10 Oct 2026, 21:50 UTC1 sourceView JSON
BGP / routing →
Click a domain or IP to look it up.
01

Registry record

RDAPhttps://rdap.apnic.net/ip/42.1.76.0/23
Record found
Record ID
42.1.64.0 - 42.1.127.255
Network name
MOBIFONE-VN
Address range
42.1.64.0 — 42.1.127.255
CIDR blocks
42.1.64.0/18
Network type
ALLOCATED PORTABLE
Country in registry
VN
Registered
2011-03-21T22:54:32Z
Last changed
2023-03-27T03:33:48Z
Status
active
Notices & terms 4

Source

Objects returned came from source APNIC

Terms and Conditions

This is the APNIC WHOIS Database query service. The objects are in RDAP format. http://www.apnic.net/db/dbcopyright.html

Whois Inaccuracy Reporting

If you see inaccuracies in the results, please visit: https://www.apnic.net/manage-ip/using-whois/abuse-and-spamming/invalid-contact-form

description

Mobifone Corporation 01 Pham Van Bach, Cau Giay, Ha Noi

Organizations & contacts

4
Administrative
Doan Dinh Dan
DDD5-AP
Type
individual
Address
Mobifone Corporation
Phone (voice)
+84-24-37831770
Email
dan.doan@mobifone.vn

Registry · rdap.apnic.net

Technical
Do Quang Duong
DQD3-AP
Type
individual
Address
MOBIFONE-VN
Phone (voice)
+84-2437831769
Email
duong.do@mobifone.vn

Registry · rdap.apnic.net

Technical
Vu Dinh Long
VDL1-AP
Type
individual
Address
MOBIFONE-VN
Phone (voice)
+84-903488383
Email
long.vudinh@mobifone.vn

Registry · rdap.apnic.net

Abuse
IRT-VNNIC-AP
Type
group
Address
Ha Noi, VietNam
Phone (voice)
+84-24-35564944
Fax
+84-24-37821462
Email
hm-changed@vnnic.vn

Registry · rdap.apnic.net

Route / route6 records IRR

whois.apnic.net:43

BGP observations →

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

Origin
AS131429
Source
APNIC

Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 24th floor, VNTA Tower, Duong Dinh Nghe, Cau Giay, Hanoi

Routing object details
route: 42.1.64.0/18
origin: AS131429
descr: Vietnam Internet Network Information Center (VNNIC)
18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam
24th floor, VNTA Tower, Duong Dinh Nghe, Cau Giay, Hanoi
mnt-by: MAINT-VN-VNNIC
last-modified: 2021-07-21T10:23:10Z
source: APNIC
Origin
AS131429
Source
APNIC

Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 24th floor, VNTA Tower, Duong Dinh Nghe, Cau Giay, Hanoi

Routing object details
route: 42.1.64.0/19
origin: AS131429
descr: Vietnam Internet Network Information Center (VNNIC)
18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam
24th floor, VNTA Tower, Duong Dinh Nghe, Cau Giay, Hanoi
mnt-by: MAINT-VN-VNNIC
last-modified: 2021-10-01T04:24:52Z
source: APNIC
Origin
AS131429
Source
APNIC

Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 24th floor, VNTA Tower, Duong Dinh Nghe, Cau Giay, Hanoi

Routing object details
route: 42.1.64.0/20
origin: AS131429
descr: Vietnam Internet Network Information Center (VNNIC)
18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam
24th floor, VNTA Tower, Duong Dinh Nghe, Cau Giay, Hanoi
mnt-by: MAINT-VN-VNNIC
last-modified: 2021-10-01T04:24:53Z
source: APNIC
Origin
AS131429
Source
APNIC

Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 24th floor, VNTA Tower, Duong Dinh Nghe, Cau Giay, Hanoi

Routing object details
route: 42.1.72.0/21
origin: AS131429
descr: Vietnam Internet Network Information Center (VNNIC)
18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam
24th floor, VNTA Tower, Duong Dinh Nghe, Cau Giay, Hanoi
mnt-by: MAINT-VN-VNNIC
last-modified: 2021-10-01T04:25:15Z
source: APNIC
Origin
AS131429
Source
APNIC

Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 24th floor, VNTA Tower, Duong Dinh Nghe, Cau Giay, Hanoi

Routing object details
route: 42.1.76.0/22
origin: AS131429
descr: Vietnam Internet Network Information Center (VNNIC)
18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam
24th floor, VNTA Tower, Duong Dinh Nghe, Cau Giay, Hanoi
mnt-by: MAINT-VN-VNNIC
last-modified: 2021-10-01T04:25:26Z
source: APNIC
Origin
AS131429
Source
APNIC

Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 24th floor, VNTA Tower, Duong Dinh Nghe, Cau Giay, Hanoi

Routing object details
route: 42.1.76.0/23
origin: AS131429
descr: Vietnam Internet Network Information Center (VNNIC)
18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam
24th floor, VNTA Tower, Duong Dinh Nghe, Cau Giay, Hanoi
mnt-by: MAINT-VN-VNNIC
last-modified: 2021-10-01T04:25:27Z
source: APNIC
Registry · RDAP Original response
https://rdap.apnic.net/ip/42.1.76.0/23
{
    "rdapConformance": [
        "history_version_0",
        "nro_rdap_profile_0",
        "cidr0",
        "rdap_level_0"
    ],
    "notices": [
        {
            "title": "Source",
            "description": [
                "Objects returned came from source",
                "APNIC"
            ]
        },
        {
            "title": "Terms and Conditions",
            "description": [
                "This is the APNIC WHOIS Database query service. The objects are in RDAP format."
            ],
            "links": [
                {
                    "value": "https://rdap.apnic.net/ip/42.1.76.0/23",
                    "rel": "terms-of-service",
                    "href": "http://www.apnic.net/db/dbcopyright.html",
                    "type": "text/html"
                }
            ]
        },
        {
            "title": "Whois Inaccuracy Reporting",
            "description": [
                "If you see inaccuracies in the results, please visit: "
            ],
            "links": [
                {
                    "value": "https://rdap.apnic.net/ip/42.1.76.0/23",
                    "rel": "inaccuracy-report",
                    "href": "https://www.apnic.net/manage-ip/using-whois/abuse-and-spamming/invalid-contact-form",
                    "type": "text/html"
                }
            ]
        }
    ],
    "country": "VN",
    "name": "MOBIFONE-VN",
    "status": [
        "active"
    ],
    "events": [
        {
            "eventAction": "registration",
            "eventDate": "2011-03-21T22:54:32Z"
        },
        {
            "eventAction": "last changed",
            "eventDate": "2023-03-27T03:33:48Z"
        }
    ],
    "links": [
        {
            "value": "https://rdap.apnic.net/ip/42.1.76.0/23",
            "rel": "self",
            "href": "https://rdap.apnic.net/ip/42.1.64.0/18",
            "type": "application/rdap+json"
        }
    ],
    "remarks": [
        {
            "description": [
                "Mobifone Corporation",
                "01 Pham Van Bach, Cau Giay, Ha Noi"
            ],
            "title": "description"
        }
    ],
    "entities": [
        {
            "roles": [
                "technical"
            ],
            "events": [
                {
                    "eventAction": "registration",
                    "eventDate": "2021-07-01T11:29:06Z"
                },
                {
                    "eventAction": "last changed",
                    "eventDate": "2021-07-01T11:29:06Z"
                }
            ],
            "links": [
                {
                    "value": "https://rdap.apnic.net/ip/42.1.76.0/23",
                    "rel": "self",
                    "href": "https://rdap.apnic.net/entity/DQD3-AP",
                    "type": "application/rdap+json"
                }
            ],
            "handle": "DQD3-AP",
            "objectClassName": "entity",
            "vcardArray": [
                "vcard",
                [
                    [
                        "version",
                        [],
                        "text",
                        "4.0"
                    ],
                    [
                        "fn",
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                        "Do Quang Duong"
                    ],
                    [
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                    ],
                    [
                        "adr",
                        {
                            "label": "MOBIFONE-VN"
                        },
                        "text",
                        [
                            "",
                            "",
                            "",
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                            "",
                            "",
                            ""
                        ]
                    ],
                    [
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                        {
                            "type": "voice"
                        },
                        "text",
                        "+84-2437831769"
                    ],
                    [
                        "email",
                        [],
                        "text",
                        "duong.do@mobifone.vn"
                    ]
                ]
            ]
        },
        {
            "roles": [
                "abuse"
            ],
            "events": [
                {
                    "eventAction": "registration",
                    "eventDate": "2010-11-07T23:14:27Z"
                },
                {
                    "eventAction": "last changed",
                    "eventDate": "2026-04-21T02:07:47Z"
                }
            ],
            "links": [
                {
                    "value": "https://rdap.apnic.net/ip/42.1.76.0/23",
                    "rel": "self",
                    "href": "https://rdap.apnic.net/entity/IRT-VNNIC-AP",
                    "type": "application/rdap+json"
                }
            ],
            "handle": "IRT-VNNIC-AP",
            "objectClassName": "entity",
            "vcardArray": [
                "vcard",
                [
                    [
                        "version",
                        [],
                        "text",
                        "4.0"
                    ],
                    [
                        "fn",
                        [],
                        "text",
                        "IRT-VNNIC-AP"
                    ],
                    [
                        "kind",
                        [],
                        "text",
                        "group"
                    ],
                    [
                        "adr",
                        {
                            "label": "Ha Noi, VietNam"
                        },
                        "text",
                        [
                            "",
                            "",
                            "",
                            "",
                            "",
                            "",
                            ""
                        ]
                    ],
                    [
                        "tel",
                        {
                            "type": "voice"
                        },
                        "text",
                        "+84-24-35564944"
                    ],
                    [
                        "tel",
                        {
                            "type": "fax"
                        },
                        "text",
                        "+84-24-37821462"
                    ],
                    [
                        "email",
                        [],
                        "text",
                        "hm-changed@vnnic.vn"
                    ],
                    [
                        "email",
                        {
                            "pref": "1"
                        },
                        "text",
                        "hm-changed@vnnic.vn"
                    ]
                ]
            ]
        },
        {
            "roles": [
                "administrative"
            ],
            "events": [
                {
                    "eventAction": "registration",
                    "eventDate": "2016-03-10T08:53:30Z"
                },
                {
                    "eventAction": "last changed",
                    "eventDate": "2017-11-19T02:44:57Z"
                }
            ],
            "links": [
                {
                    "value": "https://rdap.apnic.net/ip/42.1.76.0/23",
                    "rel": "self",
                    "href": "https://rdap.apnic.net/entity/DDD5-AP",
                    "type": "application/rdap+json"
                }
            ],
            "handle": "DDD5-AP",
            "objectClassName": "entity",
            "vcardArray": [
                "vcard",
                [
                    [
                        "version",
                        [],
                        "text",
                        "4.0"
                    ],
                    [
                        "fn",
                        [],
                        "text",
                        "Doan Dinh Dan"
                    ],
                    [
                        "kind",
                        [],
                        "text",
                        "individual"
                    ],
                    [
                        "adr",
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                            "label": "Mobifone Corporation"
                        },
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                        "text",
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                    ],
                    [
                        "email",
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                        "text",
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                    ]
                ]
            ]
        },
        {
            "roles": [
                "technical"
            ],
            "events": [
                {
                    "eventAction": "registration",
                    "eventDate": "2023-03-27T03:32:11Z"
                },
                {
                    "eventAction": "last changed",
                    "eventDate": "2023-03-27T03:32:11Z"
                }
            ],
            "links": [
                {
                    "value": "https://rdap.apnic.net/ip/42.1.76.0/23",
                    "rel": "self",
                    "href": "https://rdap.apnic.net/entity/VDL1-AP",
                    "type": "application/rdap+json"
                }
            ],
            "handle": "VDL1-AP",
            "objectClassName": "entity",
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                    ],
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                        "text",
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                    ],
                    [
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                    ],
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                        "adr",
                        {
                            "label": "MOBIFONE-VN"
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                    ],
                    [
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                    ]
                ]
            ]
        }
    ],
    "handle": "42.1.64.0 - 42.1.127.255",
    "type": "ALLOCATED PORTABLE",
    "startAddress": "42.1.64.0",
    "endAddress": "42.1.127.255",
    "objectClassName": "ip network",
    "ipVersion": "v4",
    "cidr0_cidrs": [
        {
            "v4prefix": "42.1.64.0",
            "length": 18
        }
    ],
    "port43": "whois.apnic.net"
}