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Upstreams:
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Peers:
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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)
Communities scheme:
The following BGP communities can be set by BT
BGP customers to affect announcements to major peers.
******************************************************
5400:NXXX
N=1 not announce
N=2 prepend an extra “5400 5400” on announcement
Valid values for XXX:
000 All peers and transits
500 All transits
503 Colt AS3356
509 Arelion AS1299
002 Sprint AS1239
004 Vodafone Global Network AS1273
005 Verizon EMEA AS702
014 DTAG AS3320
016 Orange AS5511
018 Tata Communications Ltd AS6453
023 GTT Communications AS3257
045 Telecom Italia Sparkle AS6762
073 GTT Communications AS286
077 Telxius Cable AS12956
077 Telefonica Germany GmbH AS6805
169 Cogent AS174
190 Comcast AS7922
191 Highwinds Network Group AS12989
300 All other peers
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AS5400 is matching RPKI validation state and reject
invalid prefixes from peers and customers.
Our looking-glass marks validation state for all
prefixes : http://www.bt.net/looking-glass.html
Please review your registered ROAs to reduce number
of invalid prefixes.
——————————————————
24/7 NOC email / network@bt.com ; dyns.network@bt.com
24/7 NOC phone / +44 203 7882214 opt 1
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** Object only to be updated by IPadmin **
** Please raise WR for any changes **
**************************************************
The above information was collected from whois.ripe.net, using
object “AS5400” on November 1, 2026