178.255.56.0/21
🇬🇧CIDR
178.255.56.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇬🇧 United Kingdom
City
London
RIR
RIPENCC
Status
allocated
Allocated
7/1/2010
Announced BGP Routes
0 of 0 routesRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| This prefix is not currently announced in BGP. See covering prefix below. | ||||
Covering Prefix
8 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 178.255.56.0/24 | AS51409SIPSYNERGY sipsynergy Ltd | Valid | — | 5/30/2026 |
| 178.255.57.0/24 | AS51409SIPSYNERGY sipsynergy Ltd | Valid | — | 5/30/2026 |
| 178.255.58.0/24 | AS51409SIPSYNERGY sipsynergy Ltd | Valid | — | 5/30/2026 |
| 178.255.59.0/24 | AS51409SIPSYNERGY sipsynergy Ltd | Valid | — | 5/30/2026 |
| 178.255.60.0/24 | AS51409SIPSYNERGY sipsynergy Ltd | Valid | — | 5/30/2026 |
| 178.255.61.0/24 | AS51409SIPSYNERGY sipsynergy Ltd | Valid | — | 5/30/2026 |
| 178.255.62.0/24 | AS51409SIPSYNERGY sipsynergy Ltd | Valid | — | 5/30/2026 |
| 178.255.63.0/24 | AS51409SIPSYNERGY sipsynergy Ltd | Valid | — | 5/30/2026 |
RPKI ROAs
| Prefix | Origin | Max Length | Trust Anchor |
|---|---|---|---|
| 178.255.56.0/21 | AS51409 | /21 | ripe |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS51409 | RIPE | mnt-uk-sipsynergy-1 | 2/25/2020 |
More Specific Prefixes
| Prefix | AS | Country | Status |
|---|---|---|---|
| 178.255.62.0/24 | AS51409 | 🇬🇧GB | assigned |
| 178.255.59.0/24 | AS51409 | 🇬🇧GB | assigned |
| 178.255.61.0/24 | AS51409 | 🇬🇧GB | assigned |
| 178.255.63.0/24 | AS51409 | 🇬🇧GB | assigned |
| 178.255.60.0/24 | AS51409 | 🇬🇧GB | assigned |
| 178.255.57.192/26 | 🇬🇧GB | assigned | |
| 178.255.58.192/26 | 🇬🇧GB | assigned | |
| 178.255.56.128/26 | 🇬🇧GB | assigned | |
| 178.255.57.0/26 | 🇬🇧GB | assigned | |
| 178.255.56.64/26 | 🇬🇧GB | assigned | |
| 178.255.57.64/26 | 🇬🇧GB | assigned | |
| 178.255.58.128/26 | 🇬🇧GB | assigned | |
| 178.255.56.192/26 | 🇬🇧GB | assigned | |
| 178.255.57.128/26 | 🇬🇧GB | assigned | |
| 178.255.56.32/27 | 🇬🇧GB | assigned | |
| 178.255.58.64/27 | 🇬🇧GB | assigned | |
| 178.255.58.0/27 | 🇬🇧GB | assigned | |
| 178.255.58.32/28 | 🇬🇧GB | assigned | |
| 178.255.56.16/28 | 🇬🇧GB | assigned | |
| 178.255.58.48/28 | 🇬🇧GB | assigned | |
| 178.255.56.0/28 | 🇬🇧GB | assigned | |
| 178.255.58.112/28 | 🇬🇧GB | assigned | |
| 178.255.58.104/29 | 🇬🇧GB | assigned | |
| 178.255.58.100/30 | 🇬🇧GB | assigned | |
| 178.255.58.98/31 | 🇬🇧GB | assigned | |
| 178.255.58.97/32 | 🇬🇧GB | assigned | |
| 178.255.58.96/32 | 🇬🇧GB | assigned |
Origin ASN
AS51409
SIPSYNERGY sipsynergy Ltd
Geolocation
Abuse Contact
API
Open https://api.ipctl.io/v1/prefix/178.255.56.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/178.255.56.0/21" | jq
External Links