172.255.104.0/21 - BGP Prefix
IPv4RIPEassignedNo ROA
CIDR
172.255.104.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇱🇺 Luxembourg
City
Schieren
RIR
RIPE
Status
assigned
Allocated
-
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
8 more-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 172.255.104.0/24 | AS7979 SERVERS-COM - Servers.com, Inc. | No ROA | - | 2026-10-13 |
| 172.255.105.0/24 | AS7979 SERVERS-COM - Servers.com, Inc. | No ROA | - | 2026-10-13 |
| 172.255.106.0/24 | AS7979 SERVERS-COM - Servers.com, Inc. | No ROA | - | 2026-10-13 |
| 172.255.107.0/24 | AS7979 SERVERS-COM - Servers.com, Inc. | No ROA | - | 2026-10-13 |
| 172.255.108.0/24 | AS7979 SERVERS-COM - Servers.com, Inc. | No ROA | - | 2026-10-13 |
| 172.255.109.0/24 | AS7979 SERVERS-COM - Servers.com, Inc. | No ROA | - | 2026-10-13 |
| 172.255.110.0/24 | AS7979 SERVERS-COM - Servers.com, Inc. | No ROA | - | 2026-10-13 |
| 172.255.111.0/24 | AS7979 SERVERS-COM - Servers.com, Inc. | No ROA | - | 2026-10-13 |
Transfer History
Registry transfers of 172.255.104.0/21, blocks inside it, or blocks containing it.
- 172.255.96.0/20inter-RIRTransfer ·
| Date | Resource | From | To | Type |
|---|---|---|---|---|
| 172.255.96.0/20inter-RIR | Servers.com B.V. | Transfer |
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 transfer marketTransfers published by all five RIRs
API
Open https://api.ipctl.io/v1/prefix/172.255.104.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/172.255.104.0/21" | jq
External Links