Autonomous system
AS6404 FACTSET
Unclassified APNIC
Summary
FactSet Research Systems
enterprise legacy
FACTSET is FactSet Research Systems, Inc., the financial-data and analytics company headquartered in Norwalk, Connecticut. It supplies market data, portfolio analytics and research workstations to investment professionals, and has held this AS number since 1996.
What it's used for
- FactSet's own corporate and product infrastructure: the systems that deliver its data platform and workstation to client firms.
- Announces a small set of prefixes, most from
164.55.0.0— a few thousand IPv4 addresses in total.
Notable
This is enterprise address space, not an ISP or a public cloud. The addresses front FactSet's own services and client-facing delivery infrastructure; there are no subscriber pools and no reseller customers. Because financial-data platforms are consumed over dedicated connections as well as the public internet, traffic here skews toward a modest number of institutional counterparties rather than a broad consumer base.
The low AS number reflects a 1996 ARIN registration — FactSet was already an established data vendor when it took its own routing identity.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Transit providers
13 upstream, 0 downstream and 13 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS6461 | Zayo Bandwidth | 113 |
| AS3356 | Level 3 Parent, LLC | 111 |
| AS15830 | Equinix (EMEA) Acquisition Enterprises B.V. | 108 |
| AS9304 | HGC Global Communications Limited | 59 |
| AS8220 | COLT Technology Services Group Limited | 57 |
| AS46887 | Crown Castle Fiber LLC | 55 |
| AS9299 | Philippine Long Distance Telephone Company | 36 |
| AS63927 | RISE | 24 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-25, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 7 prefixes · 2.82K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 7 |
Registry
Allocation record
- Registry
- APNIC
- Handle
AS6404- Registry name
- FACTSET
- Registrant
- FactSet Research Systems, Inc.
- Abuse contact
- svanam@factset.com
- Registered
- 1996-04-02
- Last changed
- 2006-10-20
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 10% valid · 1 valid, 9 with no ROA
- ROAs
- 1 authorising AS6404
- ASPA
- no ASPA record
- IRR
- 90% registered · 9 of 10 announcements 1 other origin
- Route objects
- 9 naming AS6404
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 443 networks and 1,779 prefixes, as published 2026-10-24. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere