bgpto.me
IP PREFIX

203.187.128.0/19

Originated by AS3300 · BT British Telecommunications Limited

AnnouncedUSAPNIC
www.bt.net/
Website preview from public registry data for AS3300
Registry websiteOpen site ↗

RPKI & ROA validation

CURRENT STATE

valid

No matching VRP was returned by RIPE Routinator.

ROA prefixOriginMax lengthStatus
203.187.128.0/19AS3300/24valid

Routing registry consistency

203.187.134.0/23AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC
203.187.138.0/24AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC
203.187.156.0/24AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC, REACH, LEVEL3
203.187.145.0/24AS3300 — BT British Telecommunications LimitedSeen in BGPAPNIC
203.187.148.0/23AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC
203.187.128.0/24AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC
203.187.157.0/24AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC, REACH, LEVEL3
203.187.146.0/24AS3300 — BT British Telecommunications LimitedSeen in BGPAPNIC
203.187.140.0/22AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC
203.187.149.0/24AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC, REACH
203.187.144.0/21AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC
203.187.144.0/22AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC
203.187.147.0/24AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC
203.187.133.0/24AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC
203.187.138.0/23AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC
203.187.139.0/24AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC, REACH
203.187.152.0/23AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC
203.187.150.0/24AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC
203.187.158.0/24AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC, REACH
203.187.128.0/23AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC
203.187.129.0/24AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC, REACH
203.187.136.0/21AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC, REACH
203.187.146.0/23AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC
203.187.151.0/24AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC, REACH
203.187.140.0/24AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC
203.187.137.0/24AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC
203.187.136.0/22AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC
203.187.148.0/24AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC
203.187.156.0/23AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC
203.187.141.0/24AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC
203.187.144.0/20AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC
203.187.156.0/22AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC
203.187.131.0/24AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC, REACH
203.187.128.0/21AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC, REACH
203.187.152.0/21AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC
203.187.132.0/24AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC, REACH
203.187.152.0/24AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC
203.187.140.0/23AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC
203.187.148.0/22AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC
203.187.142.0/24AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC
203.187.130.0/23AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC
203.187.150.0/23AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC
203.187.153.0/24AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC, REACH
203.187.154.0/24AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC, REACH
203.187.128.0/19AS3300 — BT British Telecommunications LimitedSeen in BGPAPNIC, REACH
203.187.143.0/24AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC, REACH
203.187.128.0/20AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC, REACH
203.187.142.0/23AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC
203.187.144.0/24AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC
203.187.136.0/23AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC
203.187.152.0/22AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC
203.187.130.0/24AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC, REACH
203.187.134.0/24AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC, REACH
203.187.159.0/24AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC, REACH
203.187.132.0/23AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC
203.187.135.0/24AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC, REACH
203.187.132.0/22AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC
203.187.154.0/23AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC
203.187.155.0/24AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC, REACH
203.187.158.0/23AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC
203.187.136.0/24AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC
203.187.128.0/22AS3300 — BT British Telecommunications LimitedSeen in BGPAPNIC
203.187.144.0/23AS3300 — BT British Telecommunications LimitedNot in BGPAPNIC

Recent RPKI history

DateCovered prefixVRPsMax length
12/10/2026203.187.128.0/191/24
11/10/2026203.187.128.0/191/24
10/10/2026203.187.128.0/191/24
09/10/2026203.187.128.0/191/24
08/10/2026203.187.128.0/191/24
07/10/2026203.187.128.0/191/24
06/10/2026203.187.128.0/191/24
05/10/2026203.187.128.0/191/24
04/10/2026203.187.128.0/191/24
03/10/2026203.187.128.0/191/24
02/10/2026203.187.128.0/191/24
01/10/2026203.187.128.0/191/24