Autonomous system
AS13329 KFN-001
Unclassified ARIN
Summary
Kansas Fiber Network
transit telecom isp
Forty-two IPv6 announcements, one netname naming a protocol, and reverse names with the octets backwards.
What it's used for
- A United States regional fibre carrier. 6,656 addresses across seventeen IPv4 prefixes, forty-two IPv6 prefixes, and forty-three observed BGP neighbours.
Notable
- Netnames include
KFNL, the full company nameKANSAS-FIBER-NETWORK-LLC,KFN-MANAGEMENTandKFN-MPLS. 205.211.152.0/23is netnameHC-653, registered to a small local telephone company.- Sampled names read
128-234-180-199.dsl.satelephone.com, with the octets in reverse order under a third company's domain. - The IPv6 blocks under
2606:3900::step/33,/35,/37,/39,/46, two/47s, three/46s,/44.
Interesting
- A netname that names a protocol rather than a customer is a label written for the operator's own benefit. Somebody set aside a block for the equipment carrying a particular kind of traffic and recorded that fact in a public database, which is more of an internal design note than a registration.
- Forty-three neighbours against under seven thousand addresses is a carrier's ratio, and the member telephone companies' own blocks announced alongside its own confirm it: this network exists to aggregate other people's networks.
- The reverse names put the last octet first, so reading them requires knowing the convention. One network in this range writes them forward, another reverses all four, and a third truncates. The address is recoverable either way and only by convention.
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
Recorded at 1 exchange in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| Kansas City Internet Exchange | Kansas City, United States | 206.51.7.40 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-13, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 17 prefixes · 6.66K addresses IPv6 42 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 59 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS13329- Registry name
- KFN-001
- Registrant
- Kansas Fiber Network, LLC
- Abuse contact
- kfnnoc@ksfiber.net
- Registered
- 2010-11-02
- Last changed
- 2012-02-24
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 87% valid · 27 valid, 4 with no ROA
- ROAs
- 19 authorising AS13329
- ASPA
- no ASPA record
- IRR
- 100% registered · 31 of 31 announcements
- Route objects
- 192 naming AS13329
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: 436 networks and 1,771 prefixes, as published 2026-10-13. 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