asn.dev

Autonomous system

AS31812 PBSO-INTERNET

Unclassified ARIN

IPv4 addresses 2.05K 3 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

Palm Beach County Sheriff's Office

United States of America · AI-generated

government law-enforcement internal

PBSO-INTERNET is operated by Palm Beach County Sheriff's Office.

What it's used for

  • The address space carries internal government infrastructure, evidenced by netnames PBSO-IPV4-INTERNET1 and PBSO-IPV4-INTERNET2 registered to the Sheriff's Office.
  • The AS announces 2048 IPv4 addresses across 3 prefixes with 4 observed neighbours, indicating a small, self-contained internal network rather than a transit or access provider.

Notable

  • Registrants for the two smaller prefixes (139.64.204.0/23 and 205.167.198.0/23) match the announcer, while the largest prefix (209.149.216.0/22) is registered to AT&T Enterprises, LLC under the netname BELLSNET-BLK3, suggesting leased or historically allocated space.
  • The inventory consists of three distinct IPv4 blocks with no IPv6 prefixes, reflecting a legacy or segmented internal estate.

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
AS7018AT&T Enterprises, LLC265
AS46887Crown Castle Fiber LLC179
AS20214Comcast Cable Communications, LLC34

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 3 prefixes · 2.05K addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America3

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS31812
Registry name
PBSO-INTERNET
Registrant
Palm Beach County Sheriff's Office
Abuse contact
network-abuse@pbso.org
Registered
2020-04-06
Last changed
2020-04-06
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 8 with no ROA
ROAs
0 authorising AS31812
ASPA
no ASPA record
IRR
75% registered · 6 of 8 announcements 2 other origin
Route objects
2 naming AS31812

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 1,784 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