23.27.104.0/24 - BT UK British Telecommunications Limited (AS2856)
CIDR
23.27.104.0/24
IP Version
IPv4
Addresses
256
Mask
/24 (255.255.255.0)
Country
🇬🇧 United Kingdom
City
London
RIR
ARIN
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
Swipe sideways to see all columns →
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 23.27.104.0/24 | AS2856 BT-UK-AS British Telecommunications Limited | Valid | ARIN | 2026-10-11 |
RPKI ROAs
| Prefix | Origin | Max Length | Trust Anchor |
|---|---|---|---|
| 23.27.104.0/24 | AS2856 | /24 | arin |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS2856 | ARIN | MNT-ADCIL | 2026-05-06 |
Transfer History
Registry transfers of 23.27.104.0/24, blocks inside it, or blocks containing it.
- 23.27.0.0/16M&A ·
| Date | Resource | From | To | Type |
|---|---|---|---|---|
| 23.27.0.0/16 | M&A |
Related Prefixes
Geolocation
Country🇬🇧United KingdomGB
CityLondon
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 ARIN regionWho bought and sold address space recently
API
Open https://api.ipctl.io/v1/prefix/23.27.104.0/24Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/23.27.104.0/24" | jq
External Links