AS3300 BT British Telecommunications Limited
🇬🇧Org handle: ORG-CNS3-RIPE
RIPE NCCallocated
Announced Prefixes (BGP)
152total
123 IPv429 IPv6
IPv4 Addresses
Allocated (RIR)515,584
Announced (BGP)604,416
IPv6 Addresses
Allocated (RIR)1.5×10²⁹
Announced (BGP)2.3×10²⁹
Prefix Limit (IPv4)
1,000
Prefix Limit (IPv6)
100
Country
🇬🇧 GBRIR
RIPE NCCStatus
allocated
Allocated
1994-10-28
Announced Prefixes
(BGP)152|
Prefix | RPKI | IRR | Last Seen |
|---|---|---|---|
| Valid | APNIC | 2026-10-11 | |
| Valid | APNIC | 2026-10-11 | |
| Valid | APNIC | 2026-10-11 | |
| Valid | APNIC | 2026-10-11 | |
| Valid | APNIC | 2026-10-11 | |
| Valid | APNIC | 2026-10-11 | |
| Valid | APNIC | 2026-10-11 | |
| Valid | APNIC | 2026-10-11 | |
| Valid | APNIC | 2026-10-11 | |
| Valid | APNIC | 2026-10-11 |
1-10 of 152
1 / 16
Allocated Prefixes
(RIR)43Prefix | Country | RIR | Status |
|---|---|---|---|
| 61.14.0.0/18 | 🇦🇺 AU | APNIC | allocated |
| 61.14.1.0/24 | 🇦🇺 AU | APNIC | assigned |
| 61.14.8.0/22 | 🇯🇵 JP | APNIC | assigned |
| 61.14.11.0/24 | 🇯🇵 JP | APNIC | assigned |
| 61.14.12.0/22 | 🇦🇺 AU | APNIC | assigned |
| 61.14.15.0/24 | 🇦🇺 AU | APNIC | assigned |
| 61.14.31.0/24 | 🇸🇬 SG | APNIC | assigned |
| 61.14.34.0/24 | 🇸🇬 SG | APNIC | assigned |
| 61.14.36.0/24 | 🇯🇵 JP | APNIC | assigned |
| 61.14.39.0/24 | 🇯🇵 JP | APNIC | assigned |
1-10 of 43
1 / 5
All 152 announced prefixes of AS3300 →
BGP Neighbours
(seen in AS paths)Upstreams (8)
Networks AS3300 hands its own prefixes to: transit providers, or peers at an exchange.
Downstreams (20)
Networks whose own prefixes AS3300 passes on: usually its customers.
- AS7246Bristol Myers Squibb Company11
- AS136767BMW (Bayerische Motoren Werke Aktiengesellschaft)6
- AS72Schlumberger Limited5
- AS22683PHILIPS INTERNET Koninklijke Philips N.V4
- AS40659BMW Of North America, (Group Data Centers America)4
- AS78BT Americas3
- AS18872Veritas Technologies3
- AS45187Rackspace IT Hosting IT Hosting Provider Hong Kong3
- AS399449Kyndryl3
- AS141399Specsavers Pty2
- AS212565SPECSAVERS Optical Group Limited2
- AS6220InContact1
- AS19812BT Americas1
- AS26478Novartis Pharmaceuticals1
- AS27000Coty1
- AS40126Molson Coors Beverage Company1
- AS48647SOLVAY1
- AS55290Depository Trust & Clearing Corporation1
- AS133782Elsevier1
- AS393493Lotte Biologics USA1
ASPA
No ASPA
Abuse Contact
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 AS3300 should publish an ASPA object
- IPv4 transfers in the RIPE NCC 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/3300Returns ASN details, announced prefixes, and BGP routing data.
curl -s "https://api.ipctl.io/v1/asn/3300" | jq