AS401606 CDOT-ITS-01 - Colorado Department of Transportation
🇺🇸ARINassigned
Announced Prefixes (BGP)
2total
2 IPv40 IPv6
IPv4 Addresses
Allocated (RIR)256
Announced (BGP)512
IPv6 Addresses
Allocated (RIR)0
Announced (BGP)0
Announced Prefixes
(BGP)2|
Prefix | RPKI | IRR | Last Seen |
|---|---|---|---|
| Valid | ARIN | 2026-10-08 | |
| No ROA | - | 2026-10-08 |
Allocated Prefixes
(RIR)1Prefix | Country | RIR | Status |
|---|---|---|---|
| 216.21.241.0/24 | 🇺🇸 US | ARIN | allocated |
All 2 announced prefixes of AS401606 →
BGP Neighbours
(seen in AS paths)Upstreams (1)
Networks AS401606 hands its own prefixes to: transit providers, or peers at an exchange.
- AS3356Level 3 Parent2
ASPA
No ASPA
External Links
Learn more
- What is an ASN?Autonomous systems, ASN ranges and how they are assigned
- RPKI and route origin validationWhat the RPKI badges on the prefix list mean
- ASPA explainedWhy AS401606 should publish an ASPA object
- IPv4 transfers in the ARIN regionMonthly volume and the latest registry transfers
- ASN data in AI agents and SIEMMCP server and API integrations
API
Open https://api.ipctl.io/v1/asn/401606Returns ASN details, announced prefixes, and BGP routing data.
curl -s "https://api.ipctl.io/v1/asn/401606" | jq