asn.dev

Autonomous system

AS54156 CITY-OF-HUNTSVILLE

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 2 0 downstream
Flagged prefixes 0 none

Summary

City of Huntsville

United States of America · AI-generated

government municipal network

CITY-OF-HUNTSVILLE is operated by the City of Huntsville.

What it's used for

  • The address space carries municipal infrastructure, evidenced by netnames HSVUTIL and HUNTSVILLEAL-GOV and reverse DNS entries pointing to hsvutil.org and huntsvilleal.gov.
  • The AS announces 512 IPv4 addresses across 2 prefixes and maintains 3 observed neighbours, a ratio consistent with a small, self-contained internal network rather than a transit or large-scale access provider.
  • Traffic from this AS consists of internal city services, administrative endpoints, and utility infrastructure for the municipality of Huntsville, Alabama.

Notable

  • Registrants for both announced prefixes are listed as "City of Huntsville," aligning perfectly with the AS holder.
  • The inventory is finely subdivided into two /24 blocks, reflecting a segmented internal corporate or municipal estate rather than a broad consumer base.

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

2 upstream, 0 downstream and 2 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS46506SimpleHelix.com66
AS3356Level 3 Parent, LLC61

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-28, 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
AS54156
Registry name
CITY-OF-HUNTSVILLE
Registrant
City of Huntsville
Abuse contact
gene.uhl@huntsvilleal.gov
Registered
2011-10-17
Last changed
2011-10-17
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 2 with no ROA
ROAs
0 authorising AS54156
ASPA
no ASPA record
IRR
50% registered · 1 of 2 announcements 1 other origin
Route objects
1 naming AS54156

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: 448 networks and 1,851 prefixes, as published 2026-10-29. 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