AS33203 2CRSI - 2CRSI Corporation
🇺🇸ARINassigned
Announced Prefixes (BGP)
4total
3 IPv41 IPv6
IPv4 Addresses
Allocated (RIR)0
Announced (BGP)1,024
IPv6 Addresses
Allocated (RIR)4.9×10²⁷
Announced (BGP)4.9×10²⁷
Announced Prefixes
(BGP)4|
Prefix | RPKI | IRR | Last Seen |
|---|---|---|---|
| Valid | ARINOther IRR | 2026-10-11 | |
| Invalid | - | 2026-10-11 | |
| Invalid | - | 2026-10-11 | |
| No ROA | ARIN | 2026-10-11 |
Allocated Prefixes
(RIR)1Prefix | Country | RIR | Status |
|---|---|---|---|
| 2602:f911::/36 | 🇺🇸 US | ARIN | allocated |
All 4 announced prefixes of AS33203 →
BGP Neighbours
(seen in AS paths)Upstreams (1)
Networks AS33203 hands its own prefixes to: transit providers, or peers at an exchange.
- AS13536FirstLight Fiber4
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 AS33203 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/33203Returns ASN details, announced prefixes, and BGP routing data.
curl -s "https://api.ipctl.io/v1/asn/33203" | jq