Autonomous system
AS21586 SWKO - SWKO - SouthWest Kansas Online
Unclassified ARIN
Summary
SouthWest Kansas Online
isp regional kansas residential
The AS handle SWKO is held by SouthWest Kansas Online.
What it's used for
- The address space carries residential and institutional traffic, evidenced by reverse DNS entries such as
tucows.games.swko.netand209-137-193-126.tabor.edu. - The network announces 1024 IPv4 addresses across 3 prefixes and maintains a single observed neighbour, a ratio that indicates a small regional access provider rather than a transit carrier.
Notable
- All registrants for the announced prefixes are consistent with the announcer, identified as
SWKO - SouthWest Kansas Onlinewith the netnameSWKO-1BLK. - The inventory consists of three contiguous IPv4 blocks within the 209.137.0.0/16 range, with no IPv6 prefixes currently announced.
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.
Transit providers
1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS27425 | IdeaTek Telcom, LLC | 260 |
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 3 prefixes · 1.02K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 3 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS21586- Registry name
- SWKO
- Registrant
- SWKO - SouthWest Kansas Online
- Abuse contact
- doug@swko.net
- Registered
- 2001-05-25
- Last changed
- 2013-02-20
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 4 with no ROA
- ROAs
- 0 authorising AS21586
- ASPA
- no ASPA record
- IRR
- 100% registered · 4 of 4 announcements
- Route objects
- 14 naming AS21586
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