Autonomous system
AS13543 COOKEVILLE-TN-GOV - City of Cookeville
Unclassified ARIN
Summary
City of Cookeville
government infrastructure business
A city government running its own AS number, with a netname that labels itself IPv4 while announcing IPv6.
What it's used for
- A municipal government's network. 1,024 addresses in one IPv4 prefix,
162.253.96.0/22, the IPv6 block2620:f4:c000::/48, and two observed BGP neighbours.
Notable
- The IPv4 block is netname
COOKEVILLE-TN-GOV-IPV4, registered to the city. - The same string is the AS handle, without the protocol suffix.
- Three addresses were queried for reverse DNS and none returned a name.
Interesting
- A netname ending in the protocol version is written by someone expecting a matching IPv6 object later, and here it arrived: the city holds a /48 and announces it. Most organisations that stamp the version into a netname never get around to the second half.
- Two upstreams and one small block is the shape of a city that decided its own number was worth the paperwork. Municipal services, utility billing, public safety systems and traffic management all need to stay reachable when one carrier has a bad day, and an AS number is the cheapest way to keep the addresses when the contract changes.
- The address block comes from a late allocation range rather than anything historic, so this network was numbered recently by internet standards, long after the universities and telephone companies nearby.
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
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-12, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 1 prefixes · 1.02K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 2 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS13543- Registry name
- COOKEVILLE-TN-GOV
- Registrant
- City of Cookeville
- Abuse contact
- itt@cookeville-tn.gov
- Registered
- 2014-02-06
- Last changed
- 2024-02-07
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 100% valid · 2 valid, 0 with no ROA
- ROAs
- 2 authorising AS13543
- ASPA
- no ASPA record
- IRR
- 100% registered · 2 of 2 announcements
- Route objects
- 5 naming AS13543
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: 453 networks and 1,848 prefixes, as published 2026-11-13. 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