asn.dev

Autonomous system

AS17317 THING5-NA

Unclassified ARIN

IPv4 addresses 512 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

Thing5

United States of America · AI-generated

business chicago small

The AS handle THING5-NA is held by Thing5, LLC.

What it's used for

  • The address space carries a mix of Cogent Communications infrastructure and Thing5's own Chicago operations, evidenced by the netnames COGENT-A and T5-CHICAGO.
  • With 512 IPv4 addresses across 2 prefixes and only 3 observed neighbours, the low neighbour count relative to the address inventory suggests a small-scale access or business network rather than a transit provider.

Notable

  • The registrants do not fully align with the announcer; while Thing5, LLC owns the 192.139.205.0/24 block, the 38.65.31.0/24 block is registered to Cogent Communications, LLC.
  • The address inventory is small and fragmented, consisting of two distinct /24 blocks with no announced IPv6 prefixes.

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
AS174Cogent Communications, LLC100
AS33491Comcast Cable Communications, LLC8
AS33659Comcast Cable Communications, LLC8

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-20, 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 · 512 addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America2

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS17317
Registry name
THING5-NA
Registrant
Thing5, LLC
Abuse contact
hostmaster@thing5.com
Registered
2014-04-10
Last changed
2014-04-10
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 2 with no ROA
ROAs
0 authorising AS17317
ASPA
no ASPA record
IRR
100% registered · 2 of 2 announcements
Route objects
3 naming AS17317

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 1,778 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