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Autonomous System

AS21803

Cedar Networks

Announced IPs
13,568
CIDR prefixes
27
ASN
AS21803

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 v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

Network profile

Source: PeeringDB →
Network type Cable/DSL/ISP
Geographic scope Not Disclosed
Traffic ratio Not Disclosed
Peering policy Selective

Top CIDR ranges

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS21803 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
67.223.163.0/24 196,976 2026-09-13 03:54:30
209.140.15.0/24 193,012 2026-09-13 03:54:30
67.223.170.0/24 171,140 2026-09-13 03:54:30
67.223.175.0/24 169,951 2026-09-13 03:54:30
67.223.174.0/24 169,558 2026-09-13 03:54:30
67.223.167.0/24 169,440 2026-09-13 03:54:30
67.223.171.0/24 169,181 2026-09-13 03:54:30
209.140.2.0/24 167,397 2026-09-13 03:54:30
209.140.4.0/24 166,213 2026-09-13 03:54:30
209.140.14.0/24 165,928 2026-09-13 03:54:30
209.140.0.0/24 165,834 2026-09-13 03:54:30
209.140.13.0/24 165,779 2026-09-13 03:54:30
209.140.5.0/24 165,706 2026-09-13 03:54:30
209.140.12.0/24 165,545 2026-09-13 03:54:30
69.39.22.0/24 141,563 2026-09-13 03:54:30
192.245.61.0/24 102,620 2026-08-04 17:26:23
69.39.31.0/24 97,424 2026-09-13 03:54:30
69.39.21.0/24 97,284 2026-09-13 03:54:30
69.39.13.0/24 95,718 2026-09-13 03:54:30
69.39.25.0/24 95,714 2026-09-13 03:54:30
69.39.3.0/24 95,482 2026-09-13 03:54:30
209.140.11.0/24 32,857 2026-09-13 03:52:41
69.39.19.0/24 22,203 2026-09-13 03:52:08
69.39.14.0/24 21,600 2026-09-13 03:52:41
67.223.169.0/24 21,572 2026-09-13 03:52:41
209.140.9.0/24 20,694 2026-09-13 03:52:41
69.39.6.0/24 20,314 2026-09-13 03:52:41
69.39.15.0/24 20,134 2026-09-13 03:52:41
67.223.164.0/24 20,100 2026-09-13 03:52:41
67.223.165.0/24 19,986 2026-09-13 03:53:19
69.39.16.0/24 19,984 2026-09-13 03:52:41
69.39.9.0/24 19,961 2026-09-13 03:52:41
67.223.161.0/24 19,957 2026-09-13 03:52:41
67.223.162.0/24 19,955 2026-09-13 03:52:41
69.39.2.0/24 19,954 2026-09-13 03:52:41
69.39.10.0/24 19,944 2026-09-13 03:52:41
69.39.7.0/24 19,943 2026-09-13 03:52:41
69.39.24.0/24 19,931 2026-09-13 03:52:41
69.39.8.0/24 19,928 2026-09-13 03:52:41
69.39.27.0/24 19,927 2026-09-13 03:52:41
69.39.0.0/24 19,926 2026-09-13 03:52:41
69.39.5.0/24 19,923 2026-09-13 03:52:41
67.223.160.0/24 19,914 2026-09-13 03:52:41
69.39.4.0/24 19,913 2026-09-13 03:53:18
69.39.23.0/24 19,904 2026-09-13 03:52:41
69.39.26.0/24 19,894 2026-09-13 03:52:41
67.223.168.0/24 19,889 2026-09-13 03:52:41
69.39.1.0/24 19,889 2026-09-13 03:52:41
69.39.28.0/24 19,843 2026-09-13 03:52:41
69.39.29.0/24 19,840 2026-09-13 03:52:41

Showing top 50 of 56 announced prefixes by sample volume.

Frequently Asked Questions

What is AS21803?

AS21803 is an Autonomous System Number assigned to Cedar Networks. 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 AS21803 announce?

AS21803 announces 13.6K IPv4 addresses distributed across 27 routed CIDR prefixes. The network is registered in United States.

Who operates AS21803?

AS21803 is operated by Cedar Networks. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS21803 registered in?

AS21803 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: 2026-09-13 03:55:57 UTC
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