Organization
FactSet Research Systems, Inc.
FACTSET
Registered
Apr 02, 1996
30 years ago
IPv4 Prefixes
10
2,816 addresses
IPv6 Prefixes
0
BGP Neighbours
13
13 upstream/peer · 0 downstream
Registration
AS Number AS6404 AS Name FACTSET Organization FactSet Research Systems, Inc. Organization ID FRS-9 Address 601 Merritt 7, Norwalk, CT, 06851, United States Country United States (US) Registry ARIN Allocated Apr 02, 1996 Record Created Apr 02, 1996 Last Updated Oct 20, 2006 Status
active
WHOIS Server whois.arin.net AS Description FACTSET - FactSet Research Systems, Inc., US Abuse Email [email protected] Abuse Phone +914042988888 IPv4 Prefixes
10 prefixes · 2,816 addresses Routing data as of 2026-10-10 08:00 UTC
| Prefix | Range | Addresses |
|---|---|---|
| 64.209.89.0/24 | 64.209.89.0 – 64.209.89.255 | 256 |
| 164.55.242.0/24 | 164.55.242.0 – 164.55.242.255 | 256 |
| 164.55.245.0/24 | 164.55.245.0 – 164.55.245.255 | 256 |
| 164.55.246.0/24 | 164.55.246.0 – 164.55.246.255 | 256 |
| 164.55.248.0/24 | 164.55.248.0 – 164.55.248.255 | 256 |
| 164.55.249.0/24 | 164.55.249.0 – 164.55.249.255 | 256 |
| 164.55.250.0/24 | 164.55.250.0 – 164.55.250.255 | 256 |
| 164.55.251.0/24 | 164.55.251.0 – 164.55.251.255 | 256 |
| 164.55.252.0/23 | 164.55.252.0 – 164.55.253.255 | 512 |
| 164.55.254.0/24 | 164.55.254.0 – 164.55.254.255 | 256 |
IPv6 Prefixes
This AS does not currently announce any IPv6 prefixes.
BGP Neighbours
13 unique neighbours · 13 upstream/peer · 0 downstream. 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. Upstream & peer side (13)
AS Name AS paths IPv4 sightings IPv6 sightings AS15830 Equinix Equinix (EMEA) Acquisition Enterprises B.V. 462 605 0 AS9304 HUTCHISON-AS-AP - HGC Global Communications Limited 268 339 0 AS3356 LEVEL3 - Level 3 Parent, LLC 263 579 0 AS6461 ZAYO-6461 - Zayo Bandwidth 258 680 0 AS8220 COLT COLT Technology Services Group Limited 254 347 0 AS46887 CROWNCASTLE-AS46887 - Crown Castle Fiber LLC 230 295 0 AS9299 IPG-AS-AP - Philippine Long Distance Telephone Company 166 209 0 AS63927 RISE-HK - RISE 112 147 0 AS5580 GTT-ASIA GTT Communications Netherlands B.V. 55 68 0 AS54004 LIGHTPATH - Cablevision Lightpath LLC 36 61 0 AS701 UUNET - Verizon Business 20 42 0 AS3549 LVLT-3549 - Level 3 Parent, LLC 18 23 0 AS17819 ASN-EQUINIX-AP - Equinix Asia Pacific 10 18 0
Raw RDAP Response
{
"endAutnum": 6404,
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-03-27T07:28:12-04:00"
},
{
"eventAction": "registration",
"eventDate": "2023-03-23T09:48:41-04:00"
}
],
"handle": "VANAM3-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/VANAM3-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/6404"
},
{
"href": "https://whois.arin.net/rest/poc/VANAM3-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/6404"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"noc",
"technical",
"abuse",
"administrative"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "Hyderabad\nHyderabad\nTelangana\n500049\nIndia"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"Sreekanth Vanam"
],
[
"n",
{},
"text",
[
"Vanam",
"Sreekanth",
"",
"",
""
]
],
[
"kind",
{},
"text",
"individual"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+914042988888"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2023-11-15T08:03:54-05:00"
},
{
"eventAction": "registration",
"eventDate": "2023-11-15T08:03:54-05:00"
}
],
"handle": "VKS-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/VKS-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/6404"
},
{
"href": "https://whois.arin.net/rest/poc/VKS-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/6404"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"ARIN has attempted to validate the data for this POC, but has received no response from the POC since 2024-11-14"
],
"title": "Unvalidated POC"
}
],
"roles": [
"technical"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"REDACTED"
],
[
"kind",
{},
"text",
"individual"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-01-28T11:45:45-05:00"
},
{
"eventAction": "registration",
"eventDate": "2023-11-15T12:36:44-05:00"
}
],
"handle": "AYB1-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/AYB1-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/6404"
},
{
"href": "https://whois.arin.net/rest/poc/AYB1-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/6404"
}
],
"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": "2023-11-29T04:43:49-05:00"
},
{
"eventAction": "registration",
"eventDate": "1996-04-02T00:00:00-05:00"
}
],
"handle": "FRS-9",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/FRS-9",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/6404"
},
{
"href": "https://whois.arin.net/rest/org/FRS-9",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/6404"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"FactSet Research Systems, Inc."
],
[
"adr",
{
"label": "601 Merritt 7\nNorwalk\nCT\n06851\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
{},
"text",
"org"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2006-10-20T16:17:43-04:00"
},
{
"eventAction": "registration",
"eventDate": "1996-04-02T00:00:00-05:00"
}
],
"handle": "AS6404",
"links": [
{
"href": "https://rdap.arin.net/registry/autnum/6404",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/6404"
},
{
"href": "https://whois.arin.net/rest/asn/AS6404",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/6404"
}
],
"name": "FACTSET",
"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/6404"
}
],
"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/6404"
}
],
"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": 6404,
"status": [
"active"
]
} Contact details of private individuals are redacted.