AS3743 ARCEL-2 - Cleveland Cliffs Steel LLC
🇺🇸ARINassigned
Announced Prefixes (BGP)
7total
7 IPv40 IPv6
IPv4 Addresses
Allocated (RIR)0
Announced (BGP)1,792
IPv6 Addresses
Allocated (RIR)0
Announced (BGP)0
Announced Prefixes
(BGP)7|
Prefix | RPKI | IRR | Last Seen |
|---|---|---|---|
| No ROA | - | 2026-10-11 | |
| No ROA | - | 2026-10-11 | |
| No ROA | - | 2026-10-11 | |
| No ROA | - | 2026-10-11 | |
| No ROA | - | 2026-10-11 | |
| No ROA | - | 2026-10-11 | |
| No ROA | - | 2026-10-11 |
All 7 announced prefixes of AS3743 →
BGP Neighbours
(seen in AS paths)Upstreams (1)
Networks AS3743 hands its own prefixes to: transit providers, or peers at an exchange.
- AS209CenturyLink Communications7
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 AS3743 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/3743Returns ASN details, announced prefixes, and BGP routing data.
curl -s "https://api.ipctl.io/v1/asn/3743" | jq