asn.dev

Autonomous system

AS26923 OPLIN

Unclassified ARIN

IPv4 addresses 33.02K 2 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

OPLIN

United States of America · AI-generated

library education non-profit us

OPLIN is operated by Ohio Public Library Information Network (OPLIN).

What it's used for

  • The address space carries library network infrastructure, evidenced by the netname OPLIN-BLK-1 and the registrant Ohio Public Library Information Network (OPLIN); Network Operations Center.
  • The inventory includes 33024 IPv4 addresses across 2 prefixes, with a single observed neighbour, indicating a small, self-contained access network rather than a transit provider.

Notable

  • Registrants align with the announcer, including Ohio Public Library Information Network (OPLIN) for the primary block and Cleveland Public Library for the secondary prefix 192.58.246.0/24 (netname CPLNET).
  • The address inventory is dominated by a single /17 block (66.213.0.0/17) alongside a smaller /24, reflecting a consolidated internal estate for library systems.

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

1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS600OARnet130

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-19, 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 · 33.02K addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America2

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS26923
Registry name
OPLIN
Registrant
Ohio Public Library Information Network (OPLIN)
Abuse contact
support@oplin.ohio.gov
Registered
2002-12-18
Last changed
2012-03-02
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 2 with no ROA
ROAs
0 authorising AS26923
ASPA
no ASPA record
IRR
100% registered · 2 of 2 announcements
Route objects
2 naming AS26923

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 1,783 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