84.45.8.0/21 - C4L MAINFRAME & CYBERNETIC SYSTEMS LIMITED (AS25577)
CIDR
84.45.8.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇬🇧 United Kingdom
City
Westminster
RIR
RIPE NCC
Status
allocated
Allocated
2004-09-22
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
Swipe sideways to see all columns →
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 84.45.8.0/21 | AS25577 C4L-AS MAINFRAME & CYBERNETIC SYSTEMS LIMITED | No ROA | RIPE | 2026-10-12 |
More-Specific Announcements
1 more-specific announcement| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 84.45.15.0/24 | AS12703 PULSANT-AS Pulsant (Scotland) Ltd | Valid | - | 2026-10-12 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS25577 | RIPE | C4L-MNT | 2025-10-30 |
More Specific Prefixes
| Prefix | AS | Country | Status |
|---|---|---|---|
| 84.45.8.0/29 | 🇬🇧GB | assigned | |
| 84.45.8.8/29 | 🇬🇧GB | assigned | |
| 84.45.8.32/29 | 🇬🇧GB | assigned | |
| 84.45.8.48/28 | 🇬🇧GB | assigned | |
| 84.45.8.64/26 | 🇬🇧GB | assigned | |
| 84.45.9.0/24 | 🇬🇧GB | assigned | |
| 84.45.10.0/27 | 🇬🇧GB | assigned | |
| 84.45.10.32/27 | 🇬🇧GB | assigned | |
| 84.45.10.80/29 | 🇬🇧GB | assigned | |
| 84.45.10.88/29 | 🇬🇧GB | assigned | |
| 84.45.10.96/27 | 🇬🇧GB | assigned | |
| 84.45.10.128/28 | 🇬🇧GB | assigned | |
| 84.45.10.160/27 | 🇬🇧GB | assigned | |
| 84.45.10.240/28 | 🇬🇧GB | assigned | |
| 84.45.11.0/24 | 🇬🇧GB | assigned | |
| 84.45.12.0/26 | 🇬🇧GB | assigned | |
| 84.45.12.64/27 | 🇬🇧GB | assigned | |
| 84.45.12.144/28 | 🇬🇧GB | assigned | |
| 84.45.12.160/28 | 🇬🇧GB | assigned | |
| 84.45.12.176/29 | 🇬🇧GB | assigned | |
| 84.45.12.184/29 | 🇬🇧GB | assigned | |
| 84.45.12.192/28 | 🇬🇧GB | assigned | |
| 84.45.12.208/29 | 🇬🇧GB | assigned | |
| 84.45.12.216/29 | 🇬🇧GB | assigned | |
| 84.45.12.224/28 | 🇬🇧GB | assigned | |
| 84.45.12.240/28 | 🇬🇧GB | assigned | |
| 84.45.13.0/28 | 🇬🇧GB | assigned | |
| 84.45.13.16/28 | 🇬🇧GB | assigned | |
| 84.45.13.32/27 | 🇬🇧GB | assigned | |
| 84.45.13.64/27 | 🇬🇧GB | assigned | |
| 84.45.13.128/25 | 🇬🇧GB | assigned | |
| 84.45.15.0/25 | 🇬🇧GB | assigned | |
| 84.45.15.160/27 | 🇬🇧GB | assigned | |
| 84.45.15.224/27 | 🇬🇧GB | assigned |
Transfer History
Registry transfers of 84.45.8.0/21, blocks inside it, or blocks containing it.
- 84.45.8.0/21Transfer ·
Related Prefixes
More prefixes of AS25577
All prefixes of AS25577 →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/84.45.8.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/84.45.8.0/21" | jq
External Links