asn.dev

Autonomous system

AS17071 UBSW-STAMFORD

Unclassified APNIC

IPv4 addresses 15.36K 24 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 4 0 downstream
Flagged prefixes 0 none

Summary

UBS AG

United States of America · AI-generated

business finance corporate

The AS handle UBSW-STAMFORD is held by UBS AG.

What it's used for

  • The address space carries corporate infrastructure, evidenced by netnames such as UBS-LON-PD and SBCORPNET registered to UBS AG.
  • The AS announces 15,360 IPv4 addresses across 24 prefixes while maintaining only 5 observed neighbours, a ratio indicative of an internal corporate estate with site-by-site segmentation rather than a transit or access network.

Notable

  • All registrants in the evidence pack agree with the announcer, consistently listing UBS AG, UBS Hostmaster, and UBS Abuse.
  • The inventory consists of finely subdivided blocks, including multiple /23 prefixes in the 139.149.0.0/16 and 155.145.0.0/16 ranges, reflecting a segmented internal network structure.

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

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

4 upstream, 0 downstream and 4 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS32787Akamai Technologies, Inc.3,600
AS8220COLT Technology Services Group Limited933
AS702Verizon Business315
AS6461Zayo Bandwidth227

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-13, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 24 prefixes · 15.36K addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America24

Registry

Allocation record

APNIC · via Atlas (registry + RDAP)
Registry
APNIC
Handle
AS17071
Registry name
UBSW-STAMFORD
Registrant
UBS AG
Abuse contact
abuse-network@ubs.com
Registered
2000-07-19
Last changed
2015-11-07
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 85 with no ROA
ROAs
0 authorising AS17071
ASPA
no ASPA record
IRR
100% registered · 85 of 85 announcements
Route objects
110 naming AS17071

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: 442 networks and 1,773 prefixes, as published 2026-10-13. 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

Cross-check