asn.dev

Autonomous system

AS13729 FIDESSA-

Unclassified APNIC

IPv4 addresses 3.07K 8 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 7 0 downstream
Flagged prefixes 0 none

Summary

Fidessa

United States · AI-generated

finance business enterprise

The AS handle is truncated to a trailing hyphen, and the company's name is spelled four different ways across eight blocks.

What it's used for

  • A trading systems vendor's network. 3,072 addresses across eight IPv4 prefixes, seven observed BGP neighbours, and no IPv6 announced.

Notable

  • The handle field reads FIDESSA-, ending in a hyphen, while the holder record reads FIDESSA-US.
  • Two blocks are netname ROYALBLU748-174 and ROYALBLU64-234, naming a predecessor company with its last letter cut off.
  • 64.185.252.0/24 is netname 24-FIDESSA-64-185-252-0, which begins with a prefix length.
  • Two more carry provider prefixes, one of them shortening the company to FIDES.
  • Registrants spell the company as a corporation, as a corp, and as the bare name.
  • Eighteen addresses were queried for reverse DNS and none returned a name.

Interesting

  • A handle ending in a hyphen is a string that was cut mid-word by a field limit. The separator survived and the thing it was separating did not, which makes the truncation visible rather than silent.
  • A netname that starts with the prefix length puts the least distinguishing part of the block first, so every block of that size sorts together and nothing else does.
  • Trading systems sit between exchanges and their customers, which is why seven upstreams matter more here than three thousand addresses do.

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

7 upstream, 0 downstream and 7 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS7018AT&T Enterprises, LLC236
AS701Verizon Business177
AS30524NEXGEN NETWORKS65
AS6461Zayo Bandwidth59
AS15290Zayo Bandwidth59
AS174Cogent Communications, LLC58
AS3549Level 3 Parent, LLC1

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-19, 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 8 prefixes · 3.07K addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America8

Registry

Allocation record

APNIC · via Atlas (registry + RDAP)
Registry
APNIC
Handle
AS13729
Registry name
FIDESSA-US
Registrant
Fidessa Corporation
Abuse contact
peter.bandith@fidessa.com
Registered
2010-03-05
Last changed
2012-02-24
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
17% valid · 2 valid, 10 with no ROA
ROAs
2 authorising AS13729
ASPA
no ASPA record
IRR
50% registered · 6 of 12 announcements
Route objects
7 naming AS13729

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 1,783 prefixes, as published 2026-10-20. 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