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Autonomous System

AS15212

C Spire

Announced IPs
26,112
CIDR prefixes
11
ASN
AS15212

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 →

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
69.197.192.0/18 16.4K
93.7%
C Spire US Mississippi Hattiesburg
207.179.48.0/20 4.1K
38.2%
C Spire US
50.86.64.0/21 2.0K
89.5%
C Spire US
207.179.32.0/22 1.0K
64.8%
C Spire US
66.175.174.0/23 512
89.8%
C Spire US
66.175.180.0/23 512
88.9%
C Spire US
207.179.36.0/23 512
67.0%
C Spire US
66.175.172.0/24 256
87.1%
C Spire US
66.175.176.0/24 256
91.8%
C Spire US Mississippi Horn Lake
66.175.179.0/24 256
91.0%
C Spire US Mississippi Horn Lake
66.175.182.0/24 256
93.0%
C Spire US

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS15212 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
69.197.248.0/21 6,770 2026-07-23 19:55:16
69.197.240.0/21 6,728 2026-07-23 19:55:16
66.175.179.0/24 6,683 2026-07-23 19:55:16
69.197.224.0/21 6,663 2026-07-23 19:55:16
66.175.180.0/23 6,658 2026-07-23 19:55:16
69.197.216.0/21 6,656 2026-07-23 19:55:16
69.197.232.0/21 6,652 2026-07-23 19:55:16
207.179.56.0/21 6,650 2026-07-23 19:55:16
66.175.176.0/24 6,624 2026-07-23 19:55:16
207.179.54.0/24 6,610 2026-07-23 19:55:16
50.86.64.0/21 6,589 2026-07-23 19:55:16
69.197.208.0/21 6,569 2026-07-23 19:55:16
66.175.182.0/24 6,550 2026-07-23 19:55:16
69.197.200.0/21 6,544 2026-07-23 19:55:16
207.179.36.0/23 6,525 2026-07-23 19:55:16
69.197.192.0/21 6,500 2026-07-23 19:55:16
207.179.48.0/20 6,361 2026-07-23 19:57:07
207.179.32.0/23 6,326 2026-07-23 19:57:07
207.179.34.0/23 6,286 2026-07-23 19:57:10
66.175.174.0/24 5,884 2026-07-23 19:55:16
66.175.175.0/24 5,851 2026-07-23 19:55:16
66.175.172.0/24 5,710 2026-07-23 19:55:16

Frequently Asked Questions

What is AS15212?

AS15212 is an Autonomous System Number assigned to C Spire. 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 AS15212 announce?

AS15212 announces 26.1K IPv4 addresses distributed across 11 routed CIDR prefixes. The network is registered in United States.

Who operates AS15212?

AS15212 is operated by C Spire. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS15212 registered in?

AS15212 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: 2026-07-23 19:55:31 UTC
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