asn.dev

Autonomous system

AS5108 PASADENA-ASN

Unclassified ARIN

IPv4 addresses 2.30K 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 Pasadena

United States · AI-generated

government legacy

The municipal network of the City of Pasadena, California, operating under the handle PASADENA-ASN.

What it's used for

  • City government networking: municipal offices, public safety, libraries, and traffic and utility operations riding the city's own fiber plant.

Notable

  • A local-government network, not a commercial ISP. Addresses here belong to city staff and city systems.
  • Pasadena runs its own municipal fiber network, built out from the mid-1990s when Pasadena Water and Power needed better links between substations than its aging copper lines. The city now operates roughly 50 miles of fiber.

Interesting

  • Beyond serving city facilities, Pasadena leases dark fiber and sells lit services to local institutions, a customer list that has included Caltech, ArtCenter College of Design, and NASA's Jet Propulsion Laboratory.

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
AS174Cogent Communications, LLC218
AS226Los Nettos146

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 2 prefixes · 2.30K addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America2

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS5108
Registry name
PASADENA-ASN
Registrant
City of Pasadena
Abuse contact
NetAdmin-PublicIP@ci.pasadena.ca.us
Registered
2013-10-01
Last changed
2013-10-01
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 6 with no ROA
ROAs
0 authorising AS5108
ASPA
no ASPA record
IRR
100% registered · 6 of 6 announcements
Route objects
5 naming AS5108

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