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ASN

AS51088

Record found
Retrieved · 22 Sep 2026, 14:54 UTC1 sourceView JSON
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01

Registry record

RDAPhttps://rdap.db.ripe.net/autnum/51088
Record found
Record ID
AS51088
AS name
A2B
AS number range
AS51088
Registered
2010-05-28T12:48:01Z
Last changed
2026-01-20T11:49:39Z
Status
active
Notices & terms 5

Filtered

This output has been filtered.

Whois Inaccuracy Reporting

If you see inaccuracies in the results, please visit: https://www.ripe.net/contact-form?topic=ripe_dbm&show_form=true

Source

Objects returned came from source RIPE

Terms and Conditions

This is the RIPE Database query service. The objects are in RDAP format. http://www.ripe.net/db/support/db-terms-conditions.pdf

Notice

============================================================ AMS-IX peering AMS-IX route server policy A2B Internet customers Transits Basic Interconnection Requirements The following is required to share a BGP session with AS51088: - The customer's gateway router must be using BGP v4. - The customer must use a RIR assigned ASN. - The customer must have its customer-routes registered with an instance of the IRR. Its 'as-set' must include the ASNs originating routes and for each route exported a relevant 'route' object is required. - The customer must export its customer-routes reasonably aggregated, and AS51088 will not accept any prefix that is longer than a /24 (except for denial-of-service mitigation). - The customer may use MED to signal its return path pre- ference in AS51088.

Organizations & contacts

4
Organization / registrant
A2B IP B.V.
ORG-AIB25-RIPE
Type
org
Address
Science Park 402 1098 XH Amsterdam NETHERLANDS
Phone (voice)
+31859020410

Registry · rdap.db.ripe.net

Administrative · Technical · Abuse
A2B Internet Role-Object
AS51088-RIPE
Type
group
Address
Spinnekop 2 NL-1444 GN Purmerend The Netherlands
Phone (voice)
+31 85 902 0410
Email (abuse)
abuse@a2b-internet.com

Registry · rdap.db.ripe.net

Maintainers A2B-INTERNET-MNT · RIPE-NCC-END-MNT

Registry · RDAP Original response
https://rdap.db.ripe.net/autnum/51088
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    "remarks": [
        {
            "description": [
                "============================================================",
                "AMS-IX peering",
                "AMS-IX route server policy",
                "A2B Internet customers",
                "Transits",
                "Basic Interconnection Requirements",
                "",
                "The following is required to share a BGP session with",
                "AS51088:",
                "- The customer's gateway router must be using BGP v4.",
                "- The customer must use a RIR assigned ASN.",
                "- The customer must have its customer-routes registered with",
                "an instance of the IRR. Its 'as-set' must include the ASNs",
                "originating routes and for each route exported a relevant",
                "'route' object is required.",
                "- The customer must export its customer-routes reasonably",
                "aggregated, and AS51088 will not accept any prefix that is",
                "longer than a /24 (except for denial-of-service mitigation).",
                "- The customer may use MED to signal its return path pre-",
                "ference in AS51088."
            ]
        }
    ],
    "links": [
        {
            "value": "https://rdap.db.ripe.net/autnum/51088",
            "rel": "rdap-up",
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            "type": "application/rdap+json"
        },
        {
            "value": "https://rdap.db.ripe.net/autnum/51088",
            "rel": "rdap-up rdap-active",
            "href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-up/AS51088?status=active",
            "type": "application/rdap+json"
        },
        {
            "value": "https://rdap.db.ripe.net/autnum/51088",
            "rel": "rdap-down",
            "href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-down/AS51088",
            "type": "application/rdap+json"
        },
        {
            "value": "https://rdap.db.ripe.net/autnum/51088",
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            "type": "application/rdap+json"
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        {
            "value": "https://rdap.db.ripe.net/autnum/51088",
            "rel": "rdap-top rdap-active",
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        {
            "value": "https://rdap.db.ripe.net/autnum/51088",
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        },
        {
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        }
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    "notices": [
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            "title": "Filtered",
            "description": [
                "This output has been filtered."
            ]
        },
        {
            "title": "Whois Inaccuracy Reporting",
            "description": [
                "If you see inaccuracies in the results, please visit:"
            ],
            "links": [
                {
                    "value": "https://rdap.db.ripe.net/autnum/51088",
                    "rel": "inaccuracy-report",
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                    "type": "text/html"
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        {
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                "RIPE"
            ]
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            "title": "Terms and Conditions",
            "description": [
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            ],
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}