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Autonomous System

AS33566

Knoxville Utilities Board

Announced IPs
52,221
CIDR prefixes
55
ASN
AS33566

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

65/100
Moderate
How this score is built

Experimental · trust-vectors model v1.3.0 — a transparent heuristic, not a definitive verdict. How it works →

Network profile

Source: PeeringDB →
Network type Cable/DSL/ISP
Traffic level 5-10Gbps
Geographic scope North America
Traffic ratio Mostly Inbound
Peering policy Selective
IRR record AS-KUBFIBER

Present at 2 internet exchanges: Equinix Ashburn, Digital Realty Atlanta

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
162.81.0.0/16 65.5K
0.0%
Knoxville Utilities Board US Tennessee Knoxville
162.81.160.0/19 8.2K
0.0%
Knoxville Utilities Board US Tennessee Knoxville
162.81.192.0/19 8.2K
0.0%
Knoxville Utilities Board US Tennessee Knoxville
162.81.16.0/20 4.1K
0.0%
Knoxville Utilities Board US — —
162.81.32.0/20 4.1K
0.0%
Knoxville Utilities Board US Tennessee Knoxville
162.81.144.0/20 4.1K
0.0%
Knoxville Utilities Board US Tennessee Knoxville
162.81.240.0/20 4.1K
0.0%
Knoxville Utilities Board US Tennessee Knoxville
162.81.56.0/21 2.0K
0.0%
Knoxville Utilities Board US Tennessee Knoxville
162.81.104.0/21 2.0K
0.0%
Knoxville Utilities Board US Tennessee Knoxville
162.81.136.0/21 2.0K
0.0%
Knoxville Utilities Board US Tennessee Knoxville
162.81.224.0/21 2.0K
0.0%
Knoxville Utilities Board US Tennessee Knoxville
162.81.12.0/22 1.0K
0.0%
Knoxville Utilities Board US — —
162.81.52.0/22 1.0K
0.0%
Knoxville Utilities Board US Tennessee Knoxville
162.81.100.0/22 1.0K
0.0%
Knoxville Utilities Board US — —
162.81.232.0/22 1.0K
0.0%
Knoxville Utilities Board US Tennessee Knoxville
162.81.6.0/23 512
0.0%
Knoxville Utilities Board US — —
162.81.48.0/23 512
0.0%
Knoxville Utilities Board US Tennessee Knoxville
162.81.112.0/23 512
0.0%
Knoxville Utilities Board US — —
162.81.116.0/23 512
0.0%
Knoxville Utilities Board US — —
162.81.128.0/23 512
0.2%
Knoxville Utilities Board US Tennessee Knoxville
162.81.134.0/23 512
0.0%
Knoxville Utilities Board US Tennessee Knoxville
192.147.142.0/23 512
49.4%
Knoxville Utilities Board US — —
192.147.144.0/23 512
98.0%
Knoxville Utilities Board US — —
162.81.0.0/24 256
0.0%
Knoxville Utilities Board US — —
162.81.8.0/24 256
0.0%
Knoxville Utilities Board US — —
162.81.50.0/24 256
0.0%
Knoxville Utilities Board US Tennessee Knoxville
162.81.70.0/24 256
0.0%
Knoxville Utilities Board US — —
162.81.115.0/24 256
0.0%
Knoxville Utilities Board US — —
162.81.119.0/24 256
0.0%
Knoxville Utilities Board US — —
162.81.120.0/24 256
0.0%
Knoxville Utilities Board US — —
162.81.130.0/24 256
0.0%
Knoxville Utilities Board US Tennessee Knoxville
162.81.133.0/24 256
0.0%
Knoxville Utilities Board US Tennessee Knoxville
162.81.51.128/25 128
0.0%
Knoxville Utilities Board US Tennessee Knoxville
162.81.131.128/25 128
0.0%
Knoxville Utilities Board US Tennessee Knoxville
162.81.132.128/25 128
0.0%
Knoxville Utilities Board US Tennessee Knoxville
162.81.51.0/26 64
0.0%
Knoxville Utilities Board US Tennessee Knoxville
162.81.131.0/26 64
0.0%
Knoxville Utilities Board US Tennessee Knoxville
162.81.132.64/26 64
0.0%
Knoxville Utilities Board US Tennessee Knoxville
162.81.51.96/27 32
0.0%
Knoxville Utilities Board US Tennessee Knoxville
162.81.131.96/27 32
0.0%
Knoxville Utilities Board US Tennessee Knoxville
162.81.132.32/27 32
0.0%
Knoxville Utilities Board US Tennessee Knoxville
162.81.51.80/28 16
0.0%
Knoxville Utilities Board US Tennessee Knoxville
162.81.131.64/28 16
0.0%
Knoxville Utilities Board US Tennessee Knoxville
162.81.132.16/28 16
0.0%
Knoxville Utilities Board US Tennessee Knoxville
162.81.51.72/29 8
0.0%
Knoxville Utilities Board US Tennessee Knoxville
162.81.131.80/29 8
0.0%
Knoxville Utilities Board US Tennessee Knoxville
162.81.132.0/29 8
0.0%
Knoxville Utilities Board US Tennessee Knoxville
162.81.51.64/30 4
0.0%
Knoxville Utilities Board US Tennessee Knoxville
162.81.131.88/30 4
0.0%
Knoxville Utilities Board US Tennessee Knoxville
162.81.132.8/30 4
0.0%
Knoxville Utilities Board US Tennessee Knoxville
162.81.51.70/31 2
0.0%
Knoxville Utilities Board US Tennessee Knoxville
162.81.131.92/31 2
0.0%
Knoxville Utilities Board US Tennessee Knoxville
162.81.132.14/31 2
0.0%
Knoxville Utilities Board US Tennessee Knoxville
162.81.51.69/32 1
0.0%
Knoxville Utilities Board US Tennessee Knoxville
162.81.131.95/32 1
0.0%
Knoxville Utilities Board US Tennessee Knoxville
162.81.132.13/32 1
0.0%
Knoxville Utilities Board US Tennessee Knoxville

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS33566 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
162.81.70.0/24 48,192 2026-11-09 07:03:32
162.81.8.0/24 44,242 2026-11-09 07:03:32
162.81.248.0/21 41,969 2026-11-09 07:03:32
162.81.12.0/22 41,671 2026-11-09 07:03:32
162.81.48.0/20 41,561 2026-11-09 07:03:32
162.81.152.0/21 40,881 2026-11-09 07:03:32
162.81.224.0/22 37,085 2026-11-09 07:03:32
162.81.107.0/24 35,928 2026-11-09 07:03:32
162.81.108.0/24 35,897 2026-11-09 07:03:32
162.81.160.0/21 35,558 2026-11-09 07:03:32
162.81.240.0/22 35,459 2026-11-09 07:03:32
162.81.0.0/24 34,707 2026-11-09 07:03:32
162.81.192.0/21 33,792 2026-11-09 07:03:32
162.81.115.0/24 33,777 2026-11-09 07:03:32
162.81.110.0/24 33,763 2026-11-09 07:03:32
162.81.112.0/24 33,763 2026-11-09 07:03:32
162.81.111.0/24 33,761 2026-11-09 07:03:32
162.81.116.0/24 33,652 2026-11-09 07:03:32
162.81.244.0/22 33,636 2026-11-09 07:03:32
162.81.176.0/21 33,626 2026-11-09 07:03:32
162.81.228.0/22 33,602 2026-11-09 07:03:32
162.81.200.0/21 33,552 2026-11-09 07:03:32
162.81.32.0/20 33,309 2026-11-09 07:03:32
162.81.100.0/24 33,281 2026-11-09 07:03:32
162.81.144.0/21 33,124 2026-11-09 07:03:32
162.81.232.0/22 32,830 2026-11-09 07:03:32
162.81.168.0/21 32,772 2026-11-09 07:03:32
162.81.184.0/21 32,524 2026-11-09 07:03:32
162.81.102.0/24 32,379 2026-11-09 07:03:32
162.81.120.0/24 32,321 2026-11-09 07:03:32
162.81.113.0/24 32,270 2026-11-09 07:03:32
162.81.103.0/24 32,196 2026-11-09 07:03:32
162.81.105.0/24 32,013 2026-11-09 07:03:32
162.81.16.0/20 31,890 2026-11-09 07:03:32
162.81.119.0/24 31,742 2026-11-09 07:03:32
162.81.109.0/24 31,721 2026-11-09 07:03:32
162.81.128.0/20 31,702 2026-11-09 07:03:32
162.81.101.0/24 31,568 2026-11-09 07:03:32
162.81.104.0/24 31,408 2026-11-09 07:03:32
162.81.208.0/20 31,123 2026-11-09 07:03:32
162.81.117.0/24 30,411 2026-11-09 07:03:32
162.81.106.0/24 25,920 2026-11-09 07:03:32
162.81.6.0/23 19,885 2026-11-09 07:03:32
162.81.252.0/24 17,577 2026-10-01 12:31:39
192.147.145.0/24 15,723 2026-11-09 07:03:32
192.147.144.0/24 15,708 2026-11-09 07:03:32
192.147.142.0/24 15,706 2026-11-09 07:03:32
192.147.143.0/24 15,597 2026-11-09 07:03:32
162.81.9.0/24 10,696 2026-10-01 13:20:21
162.81.0.0/16 6,258 2026-10-14 09:58:27

Showing top 50 of 51 announced prefixes by sample volume.

Frequently Asked Questions

What is AS33566?

AS33566 is an Autonomous System Number assigned to Knoxville Utilities Board. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).

How many IP addresses does AS33566 announce?

AS33566 announces 52.2K IPv4 addresses distributed across 55 routed CIDR prefixes. The network is registered in United States.

Who operates AS33566?

AS33566 is operated by Knoxville Utilities Board. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS33566 registered in?

AS33566 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-11-09 07:39:05 UTC
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