RDAP / Whois lookup

Look up authoritative registration records for a domain, IP, network prefix or ASN. Subdomains are resolved to their registrable domain automatically.

AS5400

Record foundRIPE NCC

RDAP is structured authoritative registration data. Registration records and contacts do not establish current routing, device location or network safety.

Queried at10/22/2026, 03:35:18Local authoritative snapshot

ASN profile Network topology BGP routes

Resource type: Autonomous system
Registry: RIPE NCC
Registration country / region: Not provided by registry
Registration status: Active
Registered at: 8/29/2002, 09:47:11
Last changed: 10/15/2026, 12:20:09

Resource rangeAS5400 – AS5400Autonomous system

Resource records1ASN count

Public contacts6Published by the registry

Registry events2Authoritative change record

Authoritative registration details

Registry handle: AS5400
Name: BT
Allocation type: Not provided by registry
Parent handle: Not provided by registry
Whois server: whois.ripe.net
Authoritative RDAP host: rdap.db.ripe.net

Address and number range

Resource range: AS5400 – AS5400
Address family: Not applicable
Resource records: Not applicable

Registration entities and contacts

Only public fields from the authoritative RDAP response are shown. Roles are assigned by the registry.

6 entities

Technical

BT SupportBS1836-RIPE

Not provided by registry

BT Global Services · 2nd Floor, Block 12 · Pritech Park SEZ · Bellandur village, Varthur Hob · Bengaluru KA 560103 · India

Administrative

BT IP AdminCIA1-RIPE

+31 (0)88 212 8034

2nd Floor, Block 12 · BT Global Services · Pritech Park SEZ · Bellandur village, Varthur Hob · Bengaluru KA 560103 · India

Registrant

CIP-MNTCIP-MNT

Not provided by registry

Registrant

British Telecommunications LimitedORG-CNS3-RIPE

+31 (0)6 3806 7798+31 (0)88 212 8034+31 (0)88 212 8083

Pritech Park SEZ, Bellandur village, Varthur Hob · KA 560103 · Bengaluru · INDIA

Registrant

ORG-NCC1-RIPERIPE-NCC-END-MNT

Not provided by registry

Abuse

Abuse-C RoleAR15037-RIPE

abuse@eu.bt.net

BT Nederlands N.V. · Jaco de Vries - IP Admin AS5400 · room 3.33 · Offices Minerva · Herikerbergweg 2 · 1101 CM Amsterdam · NETHERLANDS

Registration and change events

2 events

Event	Time (UTC)	Actor
Last changed	10/15/2026, 12:20:09	Not provided by registry
Registration	8/29/2002, 09:47:11	Not provided by registry

Terms and remarks

Registry notices are shown verbatim so their authoritative meaning is not altered.

5 notices

Registry notice--------------------------------------------- Upstreams: Peers: ALL peering requests see www.bt.net/cgi-bin/peering-request for technical issues, pls contact: peering@bt.com for abuse, pls contact abuse@eu.bt.net 24/7 NOC email / network@bt.com 24/7 NOC phone / +44 203 7882214 opt 1 This object describes non-customer peerings Customer peerings are described in the macro AS-BT-XX (replace XX with the country code NL, UK, BE, IE,etc)

FilteredThis output has been filtered.

Whois Inaccuracy ReportingIf you see inaccuracies in the results, please visit:

SourceObjects returned came from source RIPE

Terms and ConditionsThis is the RIPE Database query service. The objects are in RDAP format.

CHA.LA authoritative RDAP snapshotIANA Bootstrap only locates the responsible registration service. Data comes from the corresponding RIR or domain registry and is cached locally by query target.Authoritative source: RIPE NCC · rdap.db.ripe.net