AS40248 CSL0-AS - County of San Luis Obispo
🇺🇸ARINassigned
Announced Prefixes (BGP)
2total
2 IPv40 IPv6
IPv4 Addresses
Allocated (RIR)8,192
Announced (BGP)8,448
IPv6 Addresses
Allocated (RIR)3×10²⁶
Announced (BGP)0
Announced Prefixes
(BGP)2|
Prefix | RPKI | IRR | Last Seen |
|---|---|---|---|
| No ROA | Other IRR | 2026-10-11 | |
| No ROA | - | 2026-10-11 |
Allocated Prefixes
(RIR)2Prefix | Country | RIR | Status |
|---|---|---|---|
| 204.88.224.0/19 | 🇺🇸 US | ARIN | allocated |
| 2620:11e:5000::/40 | 🇺🇸 US | ARIN | allocated |
All 2 announced prefixes of AS40248 →
BGP Neighbours
(seen in AS paths)Upstreams (1)
Networks AS40248 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 AS40248 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/40248Returns ASN details, announced prefixes, and BGP routing data.
curl -s "https://api.ipctl.io/v1/asn/40248" | jq