asn.dev

Autonomous system

AS13617 SYNTAX-NC

Unclassified ARIN

IPv4 addresses 1.28K 2 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 3 0 downstream
Flagged prefixes 0 none

Summary

Syntax Systems

United States · AI-generated

hosting business enterprise

Both netnames encode a company that no longer exists, one as an acronym and one as a five-letter truncation.

What it's used for

  • A managed enterprise applications provider. 1,280 addresses across two IPv4 prefixes, 74.123.36.0/22 and 8.42.204.0/24, three observed BGP neighbours, and no IPv6 announced.

Notable

  • 74.123.36.0/22 is netname FIT-USA, registered to the current company.
  • 8.42.204.0/24 is netname LVLT-FREUD-1-8-42-204, also registered to the current company.
  • That second string carries a carrier's initials, a truncated company name, a counter and the address.
  • The AS handle ends in two letters that appear in neither netname.
  • Six addresses were queried for reverse DNS and none returned a name.

Interesting

  • The acronym in one netname and the truncation in the other are the same predecessor company, written by two different systems. Read together they identify an acquisition that the registrant field has already been updated to hide.
  • A carrier's provisioning format is the more informative of the two, because it records who sold the space, which customer it went to at the time, and which allocation it came from, none of which the current registrant tells you.
  • Three upstreams for 1,280 addresses is a provider that runs other companies' business systems. Availability is the product, and paths cost less than the alternative.

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

3 upstream, 0 downstream and 3 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS3356Level 3 Parent, LLC315
AS174Cogent Communications, LLC22
AS53828NETWORK INNOVATIONS, LLC21

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-15, 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 2 prefixes · 1.28K addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America2

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS13617
Registry name
SYNTAX-NC
Registrant
Syntax Systems USA, LP
Abuse contact
jfortin@syntax.com
Registered
2010-03-04
Last changed
2025-07-14
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 6 with no ROA
ROAs
0 authorising AS13617
ASPA
no ASPA record
IRR
100% registered · 6 of 6 announcements
Route objects
2 naming AS13617

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 1,781 prefixes, as published 2026-10-16. 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