AS33566 Knoxville Utilities Board
IPv4 addresses
52,736
IPv6 /48 networks
37,633
RPKI
1 valid89 no ROA
Peers and downstreams
18
Holder
- AS name
- AS33566
- Description
- Knoxville Utilities Board Fiber Customers 4505 Middlebrook Knoxville TN 37921 United States
- Organisation
- Knoxville Utilities Board
- Abuse contact
- Not published
- Assigned
- 2012-07-23
- Registered
- 2012-07-24
- Record last changed
- 2026-01-28 19:04 UTC
162.81.0.0/24162.81.100.0/24162.81.101.0/24162.81.102.0/24162.81.103.0/24162.81.104.0/24162.81.105.0/24162.81.106.0/24162.81.107.0/24162.81.108.0/24162.81.109.0/24162.81.110.0/24162.81.111.0/24162.81.112.0/24162.81.113.0/24162.81.115.0/24162.81.116.0/24162.81.117.0/24162.81.119.0/24162.81.12.0/22162.81.120.0/24162.81.128.0/20162.81.144.0/21162.81.152.0/21162.81.16.0/20162.81.160.0/21162.81.168.0/21162.81.176.0/21162.81.184.0/21162.81.192.0/21162.81.200.0/21162.81.208.0/20162.81.224.0/22162.81.228.0/22162.81.232.0/22162.81.240.0/22162.81.244.0/22162.81.248.0/21162.81.252.0/24162.81.32.0/20162.81.48.0/20162.81.6.0/23162.81.70.0/24162.81.8.0/24162.81.9.0/24192.147.142.0/24192.147.143.0/24192.147.144.0/24192.147.145.0/2466.97.177.0/24
2606:83c0:1000::/362606:83c0:2000::/372606:83c0:3000::/372606:83c0:6400::/402606:83c0:6500::/402606:83c0:6600::/402606:83c0:6700::/402606:83c0:6800::/402606:83c0:6900::/402606:83c0:6a00::/402606:83c0:6b00::/402606:83c0:6c00::/402606:83c0:6d00::/402606:83c0:6e00::/402606:83c0:6f00::/402606:83c0:7000::/402606:83c0:7100::/402606:83c0:7300::/402606:83c0:7400::/402606:83c0:7500::/402606:83c0:7700::/402606:83c0:7800::/402606:83c0:8000::/372606:83c0:9000::/372606:83c0:9800::/372606:83c0:a000::/372606:83c0:a251::/482606:83c0:a800::/372606:83c0:b000::/372606:83c0:b800::/372606:83c0:c00::/382606:83c0:c000::/372606:83c0:c800::/372606:83c0:d000::/372606:83c0:e000::/402606:83c0:e400::/402606:83c0:e800::/372606:83c0:f000::/402606:83c0:f400::/402606:83c0:f500::/48
| AS1828 | Unitas Global UNITAS |
| AS6057 | Administracion Nacional de Telecomunicaciones AS6057 |
| AS6204 | TMRC GROUP SRL ZET-NET |
| AS7195 | EDGEUNO S.A.S AS7195 |
| AS13786 | Seabras 1 USA, LLC SEABORN |
| AS24482 | SG.GS SGGS-AS-AP |
| AS35280 | F5 Networks SARL F5 |
| AS36236 | NetActuate, Inc NETACTUATE |
| AS37468 | Angola Cables |
| AS37721 | Virtual Technologies & Solutions |
| AS49544 | i3D.net B.V i3Dnet |
| AS52320 | GlobeNet Cabos Submarinos Colombia, S.A.S. AS52320 |
| AS60171 | AFR-IX TELECOM S.A. AFRIX-AS |
| AS137409 | GSL Networks Pty LTD GSLNETWORKS-AS-AP |
Upstream graph
Upstreams and their upstreams, from BGP pathsNetwork health
Grade D · 50/100| fail | Prefixes covered by valid ROAs 1 of 90 announced prefixes are RPKI valid, 89 have no ROA. |
0/25 |
| pass | No RPKI invalid announcements None of the announcements is RPKI invalid. |
10/10 |
| pass | Announces IPv6 40 IPv6 prefixes. |
15/15 |
| pass | More than one upstream 3 upstreams seen in BGP. |
10/10 |
| fail | Working abuse contact No abuse contact is published in the registry. |
0/15 |
| fail | Publishes a geofeed No geofeed found. Without one, location databases have to guess. |
0/10 |
| pass | No prefixes smaller than /24 or /48 All prefixes are /24 (IPv4) or /48 (IPv6) or larger. |
10/10 |
| pass | Registry record maintained Last changed 2026-01-28. |
5/5 |
Built from the announced prefixes, RPKI, the registry record and geofeeds. Checks without data are not counted. Also in the API.
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[](https://ip-fd.net/asn/33566)
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Routing changes
Last 30 days| 2026-10-03 23:11 UTC | Neighbour gone | AS7029 | upstream |
| 2026-10-03 23:11 UTC | Relationship changed | AS7195 | upstream to peer |
| 2026-10-03 23:11 UTC | Relationship changed | AS6204 | upstream to peer |
| 2026-10-03 23:11 UTC | Relationship changed | AS6057 | upstream to peer |
| 2026-10-03 23:11 UTC | Relationship changed | AS60171 | upstream to peer |
| 2026-10-03 23:11 UTC | Relationship changed | AS37468 | upstream to peer |
| 2026-10-03 23:11 UTC | Relationship changed | AS13786 | upstream to peer |
| 2026-10-03 23:11 UTC | Relationship changed | AS137409 | upstream to peer |
| 2026-10-03 23:11 UTC | New prefix | 162.81.252.0/24 | |
| 2026-10-03 23:11 UTC | New prefix | 66.97.177.0/24 |
WHOIS
aut-num: AS33566 as-name: KUB-FIBER-01 handle: AS33566 registrant: KUB1 (Knoxville Utilities Board) technical: POWEL601-ARIN (Justin Powell) <justin.powell@kub.org> technical: MAYFI85-ARIN (Jody Mayfield) <jody.mayfield@kub.org> last changed: 2026-01-28T14:04:24-05:00 registration: 2012-07-24T14:55:48-04:00 source: ARIN (RDAP)