{ "query": "AS51088", "original": "AS51088", "type": "asn", "outcome": "found", "sources": [ { "role": "registry", "protocol": "RDAP", "endpoint": "https://rdap.db.ripe.net/autnum/51088", "trace": [ "https://rdap.db.ripe.net/autnum/51088" ], "http_status": 200, "outcome": "found", "raw": "{\n \"handle\" : \"AS51088\",\n \"startAutnum\" : 51088,\n \"endAutnum\" : 51088,\n \"name\" : \"A2B\",\n \"status\" : [ \"active\" ],\n \"entities\" : [ {\n \"handle\" : \"A2B-INTERNET-MNT\",\n \"vcardArray\" : [ \"vcard\", [ [ \"version\", { }, \"text\", \"4.0\" ], [ \"fn\", { }, \"text\", \"A2B-INTERNET-MNT\" ], [ \"kind\", { }, \"text\", \"individual\" ] ] ],\n \"roles\" : [ \"registrant\" ],\n \"links\" : [ {\n \"value\" : \"https://rdap.db.ripe.net/autnum/51088\",\n \"rel\" : \"self\",\n \"href\" : \"https://rdap.db.ripe.net/entity/A2B-INTERNET-MNT\"\n }, {\n \"value\" : \"http://www.ripe.net/data-tools/support/documentation/terms\",\n \"rel\" : \"copyright\",\n \"href\" : \"http://www.ripe.net/data-tools/support/documentation/terms\"\n } ],\n \"objectClassName\" : \"entity\"\n }, {\n \"handle\" : \"AS51088-RIPE\",\n \"vcardArray\" : [ \"vcard\", [ [ \"version\", { }, \"text\", \"4.0\" ], [ \"fn\", { }, \"text\", \"A2B Internet Role-Object\" ], [ \"kind\", { }, \"text\", \"group\" ], [ \"adr\", {\n \"label\" : \"Spinnekop 2\\nNL-1444 GN Purmerend\\nThe Netherlands\"\n }, \"text\", [ \"\", \"\", \"\", \"\", \"\", \"\", \"\" ] ], [ \"tel\", {\n \"type\" : \"voice\"\n }, \"text\", \"+31 85 902 0410\" ], [ \"email\", {\n \"type\" : \"abuse\"\n }, \"text\", \"abuse@a2b-internet.com\" ] ] ],\n \"roles\" : [ \"administrative\", \"technical\" ],\n \"links\" : [ {\n \"value\" : \"https://rdap.db.ripe.net/autnum/51088\",\n \"rel\" : \"self\",\n \"href\" : \"https://rdap.db.ripe.net/entity/AS51088-RIPE\"\n }, {\n \"value\" : \"http://www.ripe.net/data-tools/support/documentation/terms\",\n \"rel\" : \"copyright\",\n \"href\" : \"http://www.ripe.net/data-tools/support/documentation/terms\"\n } ],\n \"objectClassName\" : \"entity\"\n }, {\n \"handle\" : \"ORG-AIB25-RIPE\",\n \"vcardArray\" : [ \"vcard\", [ [ \"version\", { }, \"text\", \"4.0\" ], [ \"fn\", { }, \"text\", \"A2B IP B.V.\" ], [ \"kind\", { }, \"text\", \"org\" ], [ \"adr\", {\n \"label\" : \"Science Park 402\\n1098 XH\\nAmsterdam\\nNETHERLANDS\"\n }, \"text\", [ \"\", \"\", \"\", \"\", \"\", \"\", \"\" ] ], [ \"tel\", {\n \"type\" : \"voice\"\n }, \"text\", \"+31859020410\" ] ] ],\n \"roles\" : [ \"registrant\" ],\n \"links\" : [ {\n \"value\" : \"https://rdap.db.ripe.net/autnum/51088\",\n \"rel\" : \"self\",\n \"href\" : \"https://rdap.db.ripe.net/entity/ORG-AIB25-RIPE\"\n }, {\n \"value\" : \"http://www.ripe.net/data-tools/support/documentation/terms\",\n \"rel\" : \"copyright\",\n \"href\" : \"http://www.ripe.net/data-tools/support/documentation/terms\"\n } ],\n \"objectClassName\" : \"entity\"\n }, {\n \"handle\" : \"RIPE-NCC-END-MNT\",\n \"vcardArray\" : [ \"vcard\", [ [ \"version\", { }, \"text\", \"4.0\" ], [ \"fn\", { }, \"text\", \"RIPE-NCC-END-MNT\" ], [ \"kind\", { }, \"text\", \"individual\" ], [ \"org\", { }, \"text\", \"ORG-NCC1-RIPE\" ] ] ],\n \"roles\" : [ \"registrant\" ],\n \"links\" : [ {\n \"value\" : \"https://rdap.db.ripe.net/autnum/51088\",\n \"rel\" : \"self\",\n \"href\" : \"https://rdap.db.ripe.net/entity/RIPE-NCC-END-MNT\"\n }, {\n \"value\" : \"http://www.ripe.net/data-tools/support/documentation/terms\",\n \"rel\" : \"copyright\",\n \"href\" : \"http://www.ripe.net/data-tools/support/documentation/terms\"\n } ],\n \"objectClassName\" : \"entity\"\n }, {\n \"handle\" : \"AS51088-RIPE\",\n \"vcardArray\" : [ \"vcard\", [ [ \"version\", { }, \"text\", \"4.0\" ], [ \"fn\", { }, \"text\", \"A2B Internet Role-Object\" ], [ \"kind\", { }, \"text\", \"group\" ], [ \"adr\", {\n \"label\" : \"Spinnekop 2\\nNL-1444 GN Purmerend\\nThe Netherlands\"\n }, \"text\", [ \"\", \"\", \"\", \"\", \"\", \"\", \"\" ] ], [ \"tel\", {\n \"type\" : \"voice\"\n }, \"text\", \"+31 85 902 0410\" ], [ \"email\", {\n \"type\" : \"abuse\"\n }, \"text\", \"abuse@a2b-internet.com\" ] ] ],\n \"roles\" : [ \"abuse\" ],\n \"entities\" : [ {\n \"handle\" : \"A2B-INTERNET-MNT\",\n \"vcardArray\" : [ \"vcard\", [ [ \"version\", { }, \"text\", \"4.0\" ], [ \"fn\", { }, \"text\", \"A2B-INTERNET-MNT\" ], [ \"kind\", { }, \"text\", \"individual\" ] ] ],\n \"roles\" : [ \"registrant\" ],\n \"links\" : [ {\n \"value\" : \"https://rdap.db.ripe.net/autnum/51088\",\n \"rel\" : \"self\",\n \"href\" : \"https://rdap.db.ripe.net/entity/A2B-INTERNET-MNT\"\n }, {\n \"value\" : \"http://www.ripe.net/data-tools/support/documentation/terms\",\n \"rel\" : \"copyright\",\n \"href\" : \"http://www.ripe.net/data-tools/support/documentation/terms\"\n } ],\n \"objectClassName\" : \"entity\"\n }, {\n \"handle\" : \"DDW67-RIPE\",\n \"vcardArray\" : [ \"vcard\", [ [ \"version\", { }, \"text\", \"4.0\" ], [ \"fn\", { }, \"text\", \"Dick de Waal\" ], [ \"kind\", { }, \"text\", \"individual\" ], [ \"adr\", {\n \"label\" : \"Spinnekop 2\\n1444GN Purmerend\"\n }, \"text\", [ \"\", \"\", \"\", \"\", \"\", \"\", \"\" ] ], [ \"tel\", {\n \"type\" : \"voice\"\n }, \"text\", \"+31(0)85-9020410\" ] ] ],\n \"roles\" : [ \"technical\" ],\n \"links\" : [ {\n \"value\" : \"https://rdap.db.ripe.net/autnum/51088\",\n \"rel\" : \"self\",\n \"href\" : \"https://rdap.db.ripe.net/entity/DDW67-RIPE\"\n }, {\n \"value\" : \"http://www.ripe.net/data-tools/support/documentation/terms\",\n \"rel\" : \"copyright\",\n \"href\" : \"http://www.ripe.net/data-tools/support/documentation/terms\"\n } ],\n \"objectClassName\" : \"entity\"\n }, {\n \"handle\" : \"lauw42\",\n \"vcardArray\" : [ \"vcard\", [ [ \"version\", { }, \"text\", \"4.0\" ], [ \"fn\", { }, \"text\", \"Jeroen Lauwers\" ], [ \"kind\", { }, \"text\", \"individual\" ], [ \"adr\", {\n \"label\" : \"Spinnekop 2\\n1444GN Purmerend\"\n }, \"text\", [ \"\", \"\", \"\", \"\", \"\", \"\", \"\" ] ], [ \"tel\", {\n \"type\" : \"voice\"\n }, \"text\", \"+31(0)85-9020410\" ] ] ],\n \"roles\" : [ \"administrative\", \"technical\" ],\n \"links\" : [ {\n \"value\" : \"https://rdap.db.ripe.net/autnum/51088\",\n \"rel\" : \"self\",\n \"href\" : \"https://rdap.db.ripe.net/entity/lauw42\"\n }, {\n \"value\" : \"http://www.ripe.net/data-tools/support/documentation/terms\",\n \"rel\" : \"copyright\",\n \"href\" : \"http://www.ripe.net/data-tools/support/documentation/terms\"\n } ],\n \"objectClassName\" : \"entity\"\n } ],\n \"objectClassName\" : \"entity\"\n } ],\n \"remarks\" : [ {\n \"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.\" ]\n } ],\n \"links\" : [ {\n \"value\" : \"https://rdap.db.ripe.net/autnum/51088\",\n \"rel\" : \"rdap-up\",\n \"href\" : \"https://rdap.db.ripe.net/autnums/rirSearch1/rdap-up/AS51088\",\n \"type\" : \"application/rdap+json\"\n }, {\n \"value\" : \"https://rdap.db.ripe.net/autnum/51088\",\n \"rel\" : \"rdap-up rdap-active\",\n \"href\" : \"https://rdap.db.ripe.net/autnums/rirSearch1/rdap-up/AS51088?status=active\",\n \"type\" : \"application/rdap+json\"\n }, {\n \"value\" : \"https://rdap.db.ripe.net/autnum/51088\",\n \"rel\" : \"rdap-down\",\n \"href\" : \"https://rdap.db.ripe.net/autnums/rirSearch1/rdap-down/AS51088\",\n \"type\" : \"application/rdap+json\"\n }, {\n \"value\" : \"https://rdap.db.ripe.net/autnum/51088\",\n \"rel\" : \"rdap-top\",\n \"href\" : \"https://rdap.db.ripe.net/autnums/rirSearch1/rdap-top/AS51088\",\n \"type\" : \"application/rdap+json\"\n }, {\n \"value\" : \"https://rdap.db.ripe.net/autnum/51088\",\n \"rel\" : \"rdap-top rdap-active\",\n \"href\" : \"https://rdap.db.ripe.net/autnums/rirSearch1/rdap-top/AS51088?status=active\",\n \"type\" : \"application/rdap+json\"\n }, {\n \"value\" : \"https://rdap.db.ripe.net/autnum/51088\",\n \"rel\" : \"rdap-bottom\",\n \"href\" : \"https://rdap.db.ripe.net/autnums/rirSearch1/rdap-bottom/AS51088\",\n \"type\" : \"application/rdap+json\"\n }, {\n \"value\" : \"https://rdap.db.ripe.net/autnum/51088\",\n \"rel\" : \"self\",\n \"href\" : \"https://rdap.db.ripe.net/autnum/51088\",\n \"type\" : \"application/rdap+json\"\n }, {\n \"value\" : \"http://www.ripe.net/data-tools/support/documentation/terms\",\n \"rel\" : \"copyright\",\n \"href\" : \"http://www.ripe.net/data-tools/support/documentation/terms\"\n } ],\n \"events\" : [ {\n \"eventAction\" : \"registration\",\n \"eventDate\" : \"2010-05-28T12:48:01Z\"\n }, {\n \"eventAction\" : \"last changed\",\n \"eventDate\" : \"2026-01-20T11:49:39Z\"\n } ],\n \"rdapConformance\" : [ \"nro_rdap_profile_asn_flat_0\", \"rirSearch1\", \"autnums\", \"cidr0\", \"rdap_level_0\", \"nro_rdap_profile_0\", \"redacted\" ],\n \"notices\" : [ {\n \"title\" : \"Filtered\",\n \"description\" : [ \"This output has been filtered.\" ]\n }, {\n \"title\" : \"Whois Inaccuracy Reporting\",\n \"description\" : [ \"If you see inaccuracies in the results, please visit:\" ],\n \"links\" : [ {\n \"value\" : \"https://rdap.db.ripe.net/autnum/51088\",\n \"rel\" : \"inaccuracy-report\",\n \"href\" : \"https://www.ripe.net/contact-form?topic=ripe_dbm&show_form=true\",\n \"type\" : \"text/html\"\n } ]\n }, {\n \"title\" : \"Source\",\n \"description\" : [ \"Objects returned came from source\", \"RIPE\" ]\n }, {\n \"title\" : \"Terms and Conditions\",\n \"description\" : [ \"This is the RIPE Database query service. The objects are in RDAP format.\" ],\n \"links\" : [ {\n \"value\" : \"https://rdap.db.ripe.net/autnum/51088\",\n \"rel\" : \"terms-of-service\",\n \"href\" : \"http://www.ripe.net/db/support/db-terms-conditions.pdf\",\n \"type\" : \"application/pdf\"\n } ]\n } ],\n \"port43\" : \"whois.ripe.net\",\n \"objectClassName\" : \"autnum\",\n \"redacted\" : [ {\n \"name\" : {\n \"description\" : \"Personal e-mail information\"\n },\n \"reason\" : {\n \"description\" : \"Personal data\"\n },\n \"prePath\" : \"$.entities[?(@.handle=='AS51088-RIPE')].vcardArray[1][?(@[0]=='e-mail')]\",\n \"method\" : \"removal\"\n }, {\n \"name\" : {\n \"description\" : \"Personal e-mail information\"\n },\n \"reason\" : {\n \"description\" : \"Personal data\"\n },\n \"prePath\" : \"$.entities[?(@.handle=='ORG-AIB25-RIPE')].vcardArray[1][?(@[0]=='e-mail')]\",\n \"method\" : \"removal\"\n }, {\n \"name\" : {\n \"description\" : \"Personal e-mail information\"\n },\n \"reason\" : {\n \"description\" : \"Personal data\"\n },\n \"prePath\" : \"$.entities[?(@.handle=='AS51088-RIPE')].vcardArray[1][?(@[0]=='e-mail')]\",\n \"method\" : \"removal\"\n } ]\n}", "object": { "handle": "AS51088", "startAutnum": 51088, "endAutnum": 51088, "name": "A2B", "status": [ "active" ], "entities": [ { "objectClassName": "entity", "handle": "A2B-INTERNET-MNT", "roles": [ "maintainer" ], "_tls_unverified": false }, { "handle": "AS51088-RIPE", "vcardArray": [ "vcard", [ [ "version", [], "text", "4.0" ], [ "fn", [], "text", "A2B Internet Role-Object" ], [ "kind", [], "text", "group" ], [ "adr", { "label": "Spinnekop 2\nNL-1444 GN Purmerend\nThe Netherlands" }, "text", [ "", "", "", "", "", "", "" ] ], [ "tel", { "type": "voice" }, "text", "+31 85 902 0410" ], [ "email", { "type": "abuse" }, "text", "abuse@a2b-internet.com" ] ] ], "roles": [ "administrative", "technical" ], "links": [ { "value": "https://rdap.db.ripe.net/autnum/51088", "rel": "self", "href": "https://rdap.db.ripe.net/entity/AS51088-RIPE" }, { "value": "http://www.ripe.net/data-tools/support/documentation/terms", "rel": "copyright", "href": "http://www.ripe.net/data-tools/support/documentation/terms" } ], "objectClassName": "entity" }, { "handle": "ORG-AIB25-RIPE", "vcardArray": [ "vcard", [ [ "version", [], "text", "4.0" ], [ "fn", [], "text", "A2B IP B.V." ], [ "kind", [], "text", "org" ], [ "adr", { "label": "Science Park 402\n1098 XH\nAmsterdam\nNETHERLANDS" }, "text", [ "", "", "", "", "", "", "" ] ], [ "tel", { "type": "voice" }, "text", "+31859020410" ] ] ], "roles": [ "registrant" ], "links": [ { "value": "https://rdap.db.ripe.net/autnum/51088", "rel": "self", "href": "https://rdap.db.ripe.net/entity/ORG-AIB25-RIPE" }, { "value": "http://www.ripe.net/data-tools/support/documentation/terms", "rel": "copyright", "href": "http://www.ripe.net/data-tools/support/documentation/terms" } ], "objectClassName": "entity" }, { "objectClassName": "entity", "handle": "RIPE-NCC-END-MNT", "roles": [ "maintainer" ], "_tls_unverified": false }, { "handle": "AS51088-RIPE", "vcardArray": [ "vcard", [ [ "version", [], "text", "4.0" ], [ "fn", [], "text", "A2B Internet Role-Object" ], [ "kind", [], "text", "group" ], [ "adr", { "label": "Spinnekop 2\nNL-1444 GN Purmerend\nThe Netherlands" }, "text", [ "", "", "", "", "", "", "" ] ], [ "tel", { "type": "voice" }, "text", "+31 85 902 0410" ], [ "email", { "type": "abuse" }, "text", "abuse@a2b-internet.com" ] ] ], "roles": [ "abuse" ], "objectClassName": "entity" } ], "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", "href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-up/AS51088", "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", "rel": "rdap-top", "href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-top/AS51088", "type": "application/rdap+json" }, { "value": "https://rdap.db.ripe.net/autnum/51088", "rel": "rdap-top rdap-active", "href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-top/AS51088?status=active", "type": "application/rdap+json" }, { "value": "https://rdap.db.ripe.net/autnum/51088", "rel": "rdap-bottom", "href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-bottom/AS51088", "type": "application/rdap+json" }, { "value": "https://rdap.db.ripe.net/autnum/51088", "rel": "self", "href": "https://rdap.db.ripe.net/autnum/51088", "type": "application/rdap+json" }, { "value": "http://www.ripe.net/data-tools/support/documentation/terms", "rel": "copyright", "href": "http://www.ripe.net/data-tools/support/documentation/terms" } ], "events": [ { "eventAction": "registration", "eventDate": "2010-05-28T12:48:01Z" }, { "eventAction": "last changed", "eventDate": "2026-01-20T11:49:39Z" } ], "rdapConformance": [ "nro_rdap_profile_asn_flat_0", "rirSearch1", "autnums", "cidr0", "rdap_level_0", "nro_rdap_profile_0", "redacted" ], "notices": [ { "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", "href": "https://www.ripe.net/contact-form?topic=ripe_dbm&show_form=true", "type": "text/html" } ] }, { "title": "Source", "description": [ "Objects returned came from source", "RIPE" ] }, { "title": "Terms and Conditions", "description": [ "This is the RIPE Database query service. The objects are in RDAP format." ], "links": [ { "value": "https://rdap.db.ripe.net/autnum/51088", "rel": "terms-of-service", "href": "http://www.ripe.net/db/support/db-terms-conditions.pdf", "type": "application/pdf" } ] } ], "port43": "whois.ripe.net", "objectClassName": "autnum", "redacted": [ { "name": { "description": "Personal e-mail information" }, "reason": { "description": "Personal data" }, "prePath": "$.entities[?(@.handle=='AS51088-RIPE')].vcardArray[1][?(@[0]=='e-mail')]", "method": "removal" }, { "name": { "description": "Personal e-mail information" }, "reason": { "description": "Personal data" }, "prePath": "$.entities[?(@.handle=='ORG-AIB25-RIPE')].vcardArray[1][?(@[0]=='e-mail')]", "method": "removal" }, { "name": { "description": "Personal e-mail information" }, "reason": { "description": "Personal data" }, "prePath": "$.entities[?(@.handle=='AS51088-RIPE')].vcardArray[1][?(@[0]=='e-mail')]", "method": "removal" } ] }, "cache_ttl": 0, "fetched_at": "2026-09-22T15:59:33+00:00", "fallback_allowed": false, "error": null, "tls_unverified": false, "transport_warnings": [], "retry_after": null, "provider_cooldown": false } ], "warnings": [], "notes": [], "cached": false, "fetched_at": "2026-09-22T15:59:33+00:00", "partial": false, "registry_only": false, "ripe_details_available": true, "ripe_contact_ticket": "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.Tiy2bKmb5xsCjPPkAq7l0d9KEG-ktAJYmfJkSvpXeFA", "display_status": { "key": "found", "label": "Record found" } }