AS6404 — FACTSET
AS6404 announces 7 IPv4 prefixes covering 2,816 addresses and 0 IPv6 prefixes.
About this network
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.
Announced prefixes
- 64.209.89.0/24
- 164.55.242.0/24
- 164.55.245.0/24
- 164.55.246.0/24
- 164.55.248.0/22
- 164.55.252.0/23
- 164.55.254.0/24
Upstream networks
- AS6461 Zayo Bandwidth
- AS15830 Equinix (EMEA) Acquisition Enterprises B.V.
- AS3356 Level 3 Parent, LLC
- AS9304 HGC Global Communications Limited
- AS8220 COLT Technology Services Group Limited
- AS46887 Crown Castle Fiber LLC
- AS9299 Philippine Long Distance Telephone Company
- AS63927 RISE
- AS54004 Cablevision Lightpath LLC
- AS701 Verizon Business
- AS5580 GTT Communications Netherlands B.V.
- AS3549 Level 3 Parent, LLC
- AS17819 Equinix Asia Pacific
Adjacent networks
- AS6461 Zayo Bandwidth
- AS15830 Equinix (EMEA) Acquisition Enterprises B.V.
- AS3356 Level 3 Parent, LLC
- AS9304 HGC Global Communications Limited
- AS8220 COLT Technology Services Group Limited
- AS46887 Crown Castle Fiber LLC
- AS9299 Philippine Long Distance Telephone Company
- AS63927 RISE
- AS54004 Cablevision Lightpath LLC
- AS701 Verizon Business
- AS5580 GTT Communications Netherlands B.V.
- AS3549 Level 3 Parent, LLC
- AS17819 Equinix Asia Pacific
awaiting query
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