asn.dev

Autonomous system

AS29400 TULLETT-AS

Unclassified RIPE

IPv4 addresses 3.58K 10 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly GB
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

TP ICAP

United Kingdom · AI-generated

business finance corporate uk

The AS handle TULLETT-AS is held by TP ICAP Group Services Limited.

What it's used for

  • The address space carries corporate infrastructure for a financial services firm, evidenced by netnames such as UK-ICAP-PLC-20161205, ICAP-UK-PI-space, PREBON-STK, and TPICAP GROUP.
  • The AS announces 3584 IPv4 addresses across 10 prefixes with only 2 observed neighbours, indicating a small, self-contained corporate network rather than a transit or access provider.

Notable

  • Registrants align with the announcer, including TP ICAP Management Services Limited, Tullett Prebon Group Ltd, and Liquidnet Holdings Inc., reflecting the company's history of mergers and acquisitions.
  • The operator was formerly known as Tullett Prebon, which merged with ICAP to form TP ICAP, a global financial markets firm.
  • The inventory consists of a mix of /23 and /24 blocks, including legacy space from the Tullett Prebon era (e.g., TNTLDN netnames) and newer ICAP allocations.

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

1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS55002F5, Inc.754

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-18, 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 10 prefixes · 3.58K addresses IPv6 0 prefixes

CountryNamePrefixes
GBUnited Kingdom10

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS29400
Registry name
TULLETT-AS
Registrant
TP ICAP GROUP SERVICES LIMITED
Abuse contact
tpicapglobal.networkengineering@tpicap.com
Registered
2003-08-29
Last changed
2021-06-11
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 13 with no ROA
ROAs
0 authorising AS29400
ASPA
no ASPA record
IRR
100% registered · 13 of 13 announcements
Route objects
18 naming AS29400

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 1,784 prefixes, as published 2026-10-19. 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