HomeASN LookupAS5400

AS5400

🇬🇧

BT British Telecommunications PLCORG-CNS3-RIPE

RIPENCCallocated
Announced Prefixes (BGP)
109total
77 IPv432 IPv6
IPv4 Addresses ⓘ
Allocated (RIR)693,504
Announced (BGP)727,808
IPv6 Addresses ⓘ
Allocated (RIR)1.5×10^30
Announced (BGP)7.2×10^31
Prefix Limit (IPv4)
1,000
Prefix Limit (IPv6)
100
Country
🇬🇧 GB
RIR
RIPENCC
Status
allocated
Allocated
8/15/1995

Announced Prefixes

(BGP)109
|
Prefix
RPKI
IRR
Last Seen
31.95.0.0/21
 Valid
RIPE
5/25/2026
31.95.14.0/23
 Valid
RIPE
5/25/2026
31.95.16.0/20
 Valid
RIPE
5/25/2026
31.95.48.0/21
 Valid
RIPE
5/25/2026
31.95.56.0/24
 Valid
RIPE
5/25/2026
31.95.96.0/19
 Valid
RIPE
5/25/2026
31.95.160.0/20
 Valid
RIPE
5/25/2026
31.95.184.0/21
 Valid
RIPE
5/25/2026
31.95.208.0/21
 Valid
RIPE
5/25/2026
31.95.218.0/23
 Valid
RIPE
5/25/2026
1–10 of 109
1 / 11

Allocated Prefixes

(RIR)68
Prefix
Country
RIR
Status
31.95.0.0/21🇬🇧 GBRIPEassigned
31.95.14.0/23🇮🇪 IERIPEassigned
31.95.16.0/20🇳🇱 NLRIPEassigned
31.95.48.0/21🇧🇪 BERIPEassigned
31.95.56.0/24🇱🇺 LURIPEassigned
31.95.96.0/19🇩🇪 DERIPEassigned
31.95.160.0/20🇫🇷 FRRIPEassigned
31.95.184.0/21🇮🇹 ITRIPEassigned
31.95.208.0/21🇨🇭 CHRIPEassigned
31.95.218.0/23🇪🇸 ESRIPEassigned
1–10 of 68
1 / 7
ASPA
No ASPA
Abuse Contact
External Links
RIPE WhoisHurricane Electric BGPRIPEstatPeeringDB
API
Open
GEThttps://api.ipctl.io/v1/asn/5400

Returns ASN details, announced prefixes, and BGP routing data.

curl -s "https://api.ipctl.io/v1/asn/5400" | jq