AS397142
City of Fort Collins Unknown registered in United States
13IPv4 prefixes
10IPv6 prefixes
65%RPKI-valid
#4,140AS Rank
327/327RIS visibility
#1,530Rank in United States
2018-10-30Allocated
City of Fort Collins (AS397142) — Unknown, registered in United States. announces 13 IPv4 prefixes + 10 IPv6 prefixes. Rank in United States: #1530. Allocated: 2018-10-30.
IPv4 13IPv6 10
Announced prefixes · 23
- v4 167.94.176.0/20 valid
- v4 192.251.149.0/24 valid
- v4 198.99.80.0/22 valid
- v4 204.107.184.0/24 valid
- v4 204.133.79.0/24 unknown
- v4 204.133.83.0/24 unknown
- v4 23.163.32.0/24 valid
- v4 38.147.232.0/21 unknown
- v4 38.15.32.0/19 unknown
- v4 38.175.160.0/19 unknown
- v4 38.246.0.0/19 unknown
- v4 38.75.232.0/21 unknown
- v4 38.80.148.0/22 unknown
- v6 2605:b40:1100::/40 valid
- v6 2605:b40:1200::/40 valid
- v6 2605:b40:1300::/40 valid
- v6 2605:b40:1400::/40 valid
- v6 2605:b40:2100::/40 valid
- v6 2605:b40:2200::/40 valid
- v6 2605:b40:2300::/40 valid
- v6 2605:b40:2400::/40 valid
- v6 2605:b40::/32 valid
- v6 2605:b40:f0c0::/48 valid
RPKI: rpki.cloudflare.com · 2026-06-17
Routing: 13 IPv4 · 10 IPv6 announced · RIS visibility 327/327 RIS peers · RIPEstat · 2026-06-17
Prefix history
Data table
| Day | Announced prefixes |
|---|---|
| 2026-06-12 | 23 |
| 2026-06-13 | 23 |
Internet Exchanges · 1
- IX-Denver Denver 200 Gbps
AS topology · Customer cone 6
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