asn.dev

Autonomous system

AS11949 COZAD-TELEPHONE-COMPANY

Residential ARIN

IPv4 addresses 5.12K 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

Cozad Telephone Company

United States · AI-generated

isp legacy

COZAD-TELEPHONE-COMPANY is Cozad Telephone Company, a locally owned independent telco established in 1902 that serves the city of Cozad and the surrounding rural area in central Nebraska with fibre internet, telephone and TV.

What it's used for

Subscriber access. RIS sees two prefixes — 96.47.96.0/20 and 199.27.192.0/22, 5,120 addresses together — behind two observed neighbours. The reverse DNS settles what the space carries: every sampled PTR is a generated per-address name under a dynamic. label, which is how an ILEC names customer pools. A handful of neighbours against a few thousand addresses is an eyeball network, not a carrier.

Notable

Both blocks are registered to Cozad Telephone Company, so the inventory is entirely self-held. The interesting wrinkle is that the two blocks wear different rDNS domains: the /20 answers under cozadtel.net, the company's own domain, while the /22's PTRs sit under nttne.com — a Nebraska Technology & Telecommunications name. The registrant is Cozad in both cases, so this is not third-party space; it is one operator's addresses being labelled with an affiliated Nebraska carrier brand.

Interesting

That split is a useful lesson in reading rDNS. The PTR domain describes what the space carries and which platform serves it, never who holds it — here the registry and the hostnames disagree about the brand while agreeing completely about the function, which is dynamic customer access.

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
AS13765Nedelco Inc.67
AS13807Great Plains Communications LLC61

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-26, 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 · 5.12K addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America2

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS11949
Registry name
COZAD-TELEPHONE-COMPANY
Registrant
COZAD TELEPHONE COMPANY
Abuse contact
DAREN.CTC@cozadtel.net
Registered
2009-11-11
Last changed
2012-03-02
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 2 valid, 0 with no ROA
ROAs
2 authorising AS11949
ASPA
no ASPA record
IRR
100% registered · 2 of 2 announcements
Route objects
3 naming AS11949

Reputation

Classification and threat

Residential Fixed-line consumer ISP. Addresses here are homes.

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: 446 networks and 1,852 prefixes, as published 2026-10-27. 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