188.172.168.0/21 - BT UK British Telecommunications Limited (AS2856)
CIDR
188.172.168.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇬🇧 United Kingdom
RIR
RIPE
Status
assigned
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
Swipe sideways to see all columns →
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 188.172.168.0/21 | AS2856 BT-UK-AS British Telecommunications Limited | Valid | RIPE | 2026-10-13 |
RPKI ROAs
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS2856 | RIPE | web232-mnt | 2023-01-11 |
Transfer History
Registry transfers of 188.172.168.0/21, blocks inside it, or blocks containing it.
- 188.172.160.0/19Transfer ·
| Date | Resource | From | To | Type |
|---|---|---|---|---|
| 188.172.160.0/19 | CLAX TELECOM SRL | Proper Support LLP | Transfer |
Related Prefixes
Geolocation
Country🇬🇧United KingdomGB
Coordinates55.3781, -3.4360 ↗
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 transfer marketTransfers published by all five RIRs
API
Open https://api.ipctl.io/v1/prefix/188.172.168.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/188.172.168.0/21" | jq
External Links