2a01:4c8::/29 - BT UK British Telecommunications Limited (AS2856)
CIDR
2a01:4c8::/29
IP Version
IPv6
Addresses
633825.3Y
Mask
/29
Country
🇬🇧 United Kingdom
City
Hatfield
RIR
RIPE NCC
Status
allocated
Allocated
2007-10-02
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
Swipe sideways to see all columns →
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 2a01:4c8::/29 | AS2856 BT-UK-AS British Telecommunications Limited | Valid | RIPE | 2026-10-11 |
More-Specific Announcements
2 more-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 2a01:4c8:f400::/48 | AS2856 BT-UK-AS British Telecommunications Limited | Valid | - | 2026-10-11 |
| 2a01:4c8:f401::/48 | AS2856 BT-UK-AS British Telecommunications Limited | Valid | - | 2026-10-11 |
Related Prefixes
Geolocation
Abuse Contact
Learn more
- RPKI and ROAs explainedWhat RPKI valid, invalid and no ROA mean
- RPKI validatorCheck ROA coverage for any prefix or ASN
- What is BGP?How prefixes are announced and routed
- More-specific prefixesGlossary: covering and more-specific routes
- IPv4 transfers in the RIPE NCC regionWho bought and sold address space recently
API
Open https://api.ipctl.io/v1/prefix/2a01:4c8::/29Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/2a01:4c8::/29" | jq
External Links