Registration
IPv4 Prefixes
2 prefixes · 512 addresses · 1 top-level Routing data as of 2026-10-09 00:00 UTC
| Prefix | Range | Addresses |
|---|---|---|
| 192.5.4.0/23 | 192.5.4.0 – 192.5.5.255 | 512 |
| 192.5.5.0/24 | 192.5.5.0 – 192.5.5.255 | 256 |
IPv6 Prefixes
2 prefixes · 2 × /48 · 1 top-level Routing data as of 2026-10-09 00:00 UTC
| Prefix | Addresses |
|---|---|
| 2001:500:2e:: | 281 |
| 2001:500:2f:: | 280 |
BGP Neighbours
24 unique neighbours · 22 upstream/peer · 0 downstream · 2 collector-only. A neighbour can be seen on more than one side. Rows are ordered by AS paths: the number of BGP paths seen by RIPE RIS that contain the adjacency. Sightings count each IPv4/IPv6 route with the adjacency once per RIS peer that sees it (routes × peers), so they show how widely it is seen, not how many distinct routes it carries. Networks seen to the left of this AS in BGP paths, toward the route collectors — typically its transit providers (upstreams) and peers. Networks seen to the left of this AS only when they peer directly with a RIPE RIS route collector, so the adjacency may be an artefact of that peering; many of them also appear on the downstream side. Upstream & peer side (22)
AS Name AS paths IPv4 sightings IPv6 sightings AS13335 CLOUDFLARENET - Cloudflare, Inc. 263 304 284 AS30132 ISC-F-AS - Internet Systems Consortium, Inc. 255 303 284 AS33071 ISC-F-AS - Internet Systems Consortium, Inc. 46 51 50 AS1280 ISC-AS-1280 - Internet Systems Consortium, Inc. 43 39 35 AS394070 ISC-F-LGA1 - Internet Systems Consortium, Inc. 5 4 5 AS33082 ISC-F-AS - Internet Systems Consortium, Inc. 4 2 4 AS30122 ISC-F-AS - Internet Systems Consortium, Inc. 3 3 2 AS205488 ISC-BBU1 Internet Systems Consortium Inc. 3 5 2 AS2847 LITNET Kauno Technologijos Universitetas 2 2 1 AS23709 ISC-HKG1 - Internet Systems Consortium, Inc. 2 0 2 AS27320 ISC-F-AS - Internet Systems Consortium, Inc. 2 2 2 AS27322 ISC-F-AS - Internet Systems Consortium, Inc. 2 2 1 AS33081 ISC-F-AS - Internet Systems Consortium, Inc. 2 1 2 AS61447 AS61447 - Internet Systems Consortium 2 2 2 AS24051 ISC-KHI1 - Internet Systems Consortium, Inc. 1 1 0 AS30124 ISC-F-AS - Internet Systems Consortium, Inc. 1 0 1 AS33073 ISC-F-AS - Internet Systems Consortium, Inc. 1 1 1 AS33080 ISC-F-AS - Internet Systems Consortium, Inc. 1 0 1 AS210762 FROOT_TGD1 Internet Systems Consortium Inc. 1 1 0 AS210765 ISC-PRG1 Internet Systems Consortium Inc. 1 0 1 AS275691 AS275691 - Internet Systems Consortium 1 1 1 AS328995 ST DIGITAL - ST DIGITAL 1 1 1 Collector-only (2)
Raw RDAP Response
{
"endAutnum": 3557,
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-08-31T07:01:47-04:00"
},
{
"eventAction": "registration",
"eventDate": "2003-05-15T01:00:02-04:00"
}
],
"handle": "ISCAT-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/ISCAT-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/3557"
},
{
"href": "https://whois.arin.net/rest/poc/ISCAT-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/3557"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"INOC DBA 3557"
],
"title": "Registration Comments"
}
],
"roles": [
"abuse"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "PO Box 360\nNewmarket\nNH\n03857\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"Internet Systems Consortium Abuse Team"
],
[
"org",
{},
"text",
"Internet Systems Consortium, Inc."
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-650-423-1300"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2025-11-02T08:05:49-05:00"
},
{
"eventAction": "registration",
"eventDate": "1998-03-23T23:25:54-05:00"
}
],
"handle": "RA15-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/RA15-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/3557"
},
{
"href": "https://whois.arin.net/rest/poc/RA15-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/3557"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"technical"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"REDACTED"
],
[
"kind",
{},
"text",
"individual"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2025-11-23T19:11:59-05:00"
},
{
"eventAction": "registration",
"eventDate": "2003-05-15T00:00:03-04:00"
}
],
"handle": "ISCN-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/ISCN-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/3557"
},
{
"href": "https://whois.arin.net/rest/poc/ISCN-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/3557"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"Mail to [email protected] will open a ticket."
],
"title": "Registration Comments"
}
],
"roles": [
"technical",
"noc"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "PO Box 360\nNewmarket\nNH\n03857\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"Internet Systems Consortium NOC"
],
[
"org",
{},
"text",
"Internet Systems Consortium, Inc."
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-650-423-1310"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-04-15T08:39:54-04:00"
},
{
"eventAction": "registration",
"eventDate": "2018-04-16T13:41:58-04:00"
}
],
"handle": "JSO127-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/JSO127-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/3557"
},
{
"href": "https://whois.arin.net/rest/poc/JSO127-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/3557"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"technical",
"administrative"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"REDACTED"
],
[
"kind",
{},
"text",
"individual"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-01-26T09:35:54-05:00"
},
{
"eventAction": "registration",
"eventDate": "2019-11-11T16:50:47-05:00"
}
],
"handle": "BELLI82-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/BELLI82-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/3557"
},
{
"href": "https://whois.arin.net/rest/poc/BELLI82-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/3557"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"technical"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"REDACTED"
],
[
"kind",
{},
"text",
"individual"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2024-01-03T12:40:31-05:00"
},
{
"eventAction": "registration",
"eventDate": "2007-11-08T17:04:15-05:00"
}
],
"handle": "ISC-94-Z",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/ISC-94-Z",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/3557"
},
{
"href": "https://whois.arin.net/rest/org/ISC-94-Z",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/3557"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"Internet Systems Consortium, Inc."
],
[
"adr",
{
"label": "PO Box 360\nNewmarket\nNH\n03857\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
{},
"text",
"org"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2012-04-02T10:31:36-04:00"
},
{
"eventAction": "registration",
"eventDate": "1994-04-21T00:00:00-04:00"
}
],
"handle": "AS3557",
"links": [
{
"href": "https://rdap.arin.net/registry/autnum/3557",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/3557"
},
{
"href": "https://whois.arin.net/rest/asn/AS3557",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/3557"
}
],
"name": "ISC-AS",
"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/autnum/3557"
}
],
"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/autnum/3557"
}
],
"title": "Whois Inaccuracy Reporting"
},
{
"description": [
"Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
],
"title": "Copyright Notice"
}
],
"objectClassName": "autnum",
"port43": "whois.arin.net",
"rdapConformance": [
"nro_rdap_profile_0",
"rdap_level_0",
"nro_rdap_profile_asn_flat_0"
],
"startAutnum": 3557,
"status": [
"active"
]
} Contact details of private individuals are redacted.