HomePrefix Lookup81.144.0.0/12

81.144.0.0/12

🇬🇧
IPv4RIPEassigned RPKI Valid
CIDR
81.144.0.0/12
IP Version
IPv4
Addresses
1M
Mask
/12 (255.240.0.0)
Country
🇬🇧 United Kingdom
City
Hemel Hempstead
RIR
RIPE
Status
assigned
Allocated
-

Announced BGP Routes

0 of 0 routes
RPKI:
IRR:
PrefixOrigin ASRPKIIRRLast Seen
This prefix is not currently announced in BGP. See covering prefix below.

Covering Prefix

1 less-specific announcement
PrefixOrigin ASRPKIIRRLast Seen
81.128.0.0/11AS2856BT-UK-AS British Telecommunications PLC Valid—6/13/2026

RPKI ROAs

1
PrefixOriginMax LengthTrust Anchor
81.128.0.0/11AS2856/11ripe

More Specific Prefixes

100
PrefixASCountryStatus
81.156.0.0/15🇬🇧GBassigned
81.154.0.0/15🇬🇧GBassigned
81.159.0.0/16🇬🇧GBassigned
81.151.0.0/16🇬🇧GBassigned
81.158.0.0/16🇬🇧GBassigned
81.153.0.0/16🇬🇧GBassigned
81.149.0.0/17🇬🇧GBassigned
81.152.0.0/17🇬🇧GBassigned
81.152.128.0/18🇬🇧GBassigned
81.149.128.0/18🇬🇧GBassigned
81.146.0.0/18🇬🇧GBassigned
81.149.224.0/19🇬🇧GBassigned
81.148.32.0/19🇬🇧GBassigned
81.146.160.0/19🇬🇧GBassigned
81.148.64.0/19🇬🇧GBassigned
81.145.64.0/19🇬🇧GBassigned
81.146.128.0/19🇬🇧GBassigned
81.146.96.0/19🇬🇧GBassigned
81.152.192.0/19🇬🇧GBassigned
81.148.224.0/19🇬🇧GBassigned
81.146.192.0/19🇬🇧GBassigned
81.148.0.0/19🇬🇧GBassigned
81.148.128.0/19🇬🇧GBassigned
81.148.160.0/19🇬🇧GBassigned
81.144.48.0/20🇬🇧GBassigned
81.145.96.0/20🇬🇧GBassigned
81.145.112.0/20🇬🇧GBassigned
81.152.224.0/20🇬🇧GBassigned
81.148.96.0/20🇬🇧GBassigned
81.147.160.0/20🇬🇧GBassigned
81.149.208.0/20🇬🇧GBassigned
81.147.96.0/20🇬🇧GBassigned
81.144.0.0/20🇬🇧GBassigned
81.147.128.0/20🇬🇧GBassigned
81.147.0.0/20🇬🇧GBassigned
81.147.64.0/21🇬🇧GBassigned
81.147.56.0/21🇬🇧GBassigned
81.147.72.0/21🇬🇧GBassigned
81.147.80.0/21🇬🇧GBassigned
81.148.112.0/21🇬🇧GBassigned
81.147.32.0/21🇬🇧GBassigned
81.148.120.0/21🇬🇧GBassigned
81.146.240.0/21🇬🇧GBassigned
81.145.0.0/21🇬🇧GBassigned
81.147.88.0/21🇬🇧GBassigned
81.144.40.0/21🇬🇧GBassigned
81.145.248.0/21🇬🇧GBassigned
81.152.240.0/21🇬🇧GBassigned
81.144.112.0/21🇬🇧GBassigned
81.144.64.0/21🇬🇧GBassigned
81.147.144.0/21🇬🇧GBassigned
81.149.200.0/21🇬🇧GBassigned
81.147.16.0/21🇬🇧GBassigned
81.147.24.0/21🇬🇧GBassigned
81.147.152.0/21🇬🇧GBassigned
81.147.112.0/21🇬🇧GBassigned
81.148.216.0/21🇬🇧GBassigned
81.147.120.0/21🇬🇧GBassigned
81.147.52.0/22🇬🇧GBassigned
81.148.192.0/22🇬🇧GBassigned
81.147.184.0/22🇬🇧GBassigned
81.147.40.0/22🇬🇧GBassigned
81.144.16.0/22🇬🇧GBassigned
81.146.76.0/22🇬🇧GBassigned
81.152.252.0/22🇬🇧GBassigned
81.147.188.0/22🇬🇧GBassigned
81.145.244.0/22🇬🇧GBassigned
81.144.104.0/22🇬🇧GBassigned
81.144.96.0/22🇬🇧GBassigned
81.144.24.0/22🇬🇧GBassigned
81.147.180.0/22🇬🇧GBassigned
81.144.100.0/22🇬🇧GBassigned
81.144.88.0/22🇬🇧GBassigned
81.144.36.0/22🇬🇧GBassigned
81.149.192.0/22🇬🇧GBassigned
81.147.176.0/22🇬🇧GBassigned
81.147.50.0/23🇬🇧GBassigned
81.144.20.0/23🇬🇧GBassigned
81.145.16.0/23🇬🇧GBassigned
81.146.230.0/23🇬🇧GBassigned
81.146.74.0/23🇬🇧GBassigned
81.152.248.0/23🇬🇧GBassigned
81.144.124.0/23🇬🇧GBassigned
81.146.224.0/23🇬🇧GBassigned
81.144.92.0/23🇬🇧GBassigned
81.144.22.0/23🇬🇧GBassigned
81.150.20.0/23🇬🇧GBassigned
81.144.182.0/23🇬🇧GBassigned
81.144.186.0/23🇬🇧GBassigned
81.145.146.0/23🇬🇧GBassigned
81.149.198.0/23🇬🇧GBassigned
81.147.48.0/24🇬🇧GBassigned
81.147.49.0/24🇬🇧GBassigned
81.148.196.0/24🇬🇧GBassigned
81.144.133.0/24🇬🇧GBassigned
81.146.229.0/24🇬🇧GBassigned
81.144.233.0/24🇬🇧GBassigned
81.146.228.0/24🇬🇧GBassigned
81.148.210.0/24🇬🇧GBassigned
81.144.127.0/24🇬🇧GBassigned
Geolocation
Country🇬🇧United KingdomGB
RegionEngland
CityHemel Hempstead
Coordinates51.7296, -0.4553 ↗
API
Open
GEThttps://api.ipctl.io/v1/prefix/81.144.0.0/12

Returns prefix allocation, BGP routes, and more-specific subnets.

curl -s "https://api.ipctl.io/v1/prefix/81.144.0.0/12" | jq
External Links
RIPEstat Hurricane Electric BGP