143.223.12.0/22 - (AS402108)
CIDR
143.223.12.0/22
IP Version
IPv4
Addresses
1K
Mask
/22 (255.255.252.0)
Country
🇬🇧 United Kingdom
City
London
RIR
ARIN
Status
allocated
Allocated
2026-02-18
Announced BGP Routes
0 of 0 routesRPKI:
IRR:
Swipe sideways to see all columns →
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| This prefix is not announced as a whole. Parts of it are announced as more-specific prefixes, see below. | ||||
More-Specific Announcements
1 more-specific announcement| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 143.223.12.0/24 | AS33371 WMA-BEVERLY-HILLS - WME | No ROA | - | 2026-10-12 |
Transfer History
Registry transfers of 143.223.12.0/22, blocks inside it, or blocks containing it.
- 143.223.15.0/24Transfer ·
- 143.223.14.0/24Transfer ·
- 143.223.13.0/24Transfer ·
- 143.223.12.0/24Transfer ·
- 143.223.0.0/16M&A ·
| Date | Resource | From | To | Type |
|---|---|---|---|---|
| 143.223.15.0/24 | Transfer | |||
| 143.223.14.0/24 | Transfer | |||
| 143.223.13.0/24 | Transfer | |||
| 143.223.12.0/24 | Transfer | |||
| 143.223.0.0/16 | M&A |
Origin ASN
AS402108
Geolocation
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/143.223.12.0/22Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/143.223.12.0/22" | jq
External Links