HomeASN LookupAS2856Prefixes

AS2856 Announced Prefixes

565 prefixes originated in BGP by AS2856 BT UK British Telecommunications Limited.

Prefixes 1-100

PrefixRPKIIRRLast Seen
5.35.192.0/21 ValidRIPE2026-10-08
5.80.0.0/15 ValidRIPE2026-10-08
5.81.0.0/16 ValidRIPE2026-10-08
5.181.136.0/24No ROARIPE2026-10-08
9.151.0.0/19 ValidRIPE2026-10-08
9.151.208.0/20 ValidRIPE2026-10-08
9.151.248.0/21 ValidRIPE2026-10-08
9.232.192.0/18 ValidRIPE2026-10-08
9.233.48.0/20 ValidRIPE2026-10-08
9.237.96.0/19 ValidRIPE2026-10-08
9.237.128.0/18 ValidRIPE2026-10-08
9.237.192.0/19 ValidRIPE2026-10-08
15.145.20.0/22No ROAOther IRR2026-10-08
23.26.70.0/24 ValidARIN, Other IRR2026-10-08
23.26.108.0/24 ValidARIN, Other IRR2026-10-08
23.26.117.0/24 ValidARIN, Other IRR2026-10-08
23.26.131.0/24 ValidARIN, Other IRR2026-10-08
23.26.192.0/24 ValidARIN, Other IRR2026-10-08
23.27.32.0/24 ValidARIN2026-10-08
23.27.33.0/24 ValidARIN2026-10-08
23.27.34.0/24 ValidARIN2026-10-08
23.27.35.0/24 ValidARIN2026-10-08
23.27.36.0/24 ValidARIN2026-10-08
23.27.37.0/24 ValidARIN2026-10-08
23.27.38.0/24 ValidARIN2026-10-08
23.27.39.0/24 ValidARIN2026-10-08
23.27.40.0/24 ValidARIN2026-10-08
23.27.102.0/24 ValidARIN2026-10-08
23.27.103.0/24 ValidARIN2026-10-08
23.27.104.0/24 ValidARIN2026-10-08
23.27.105.0/24 ValidARIN2026-10-08
23.27.106.0/24 ValidARIN2026-10-08
23.27.107.0/24 ValidARIN2026-10-08
23.27.108.0/24 ValidARIN2026-10-08
23.230.82.0/23 ValidARIN, Other IRR2026-10-08
23.230.242.0/24 ValidARIN, Other IRR2026-10-08
23.230.252.0/24 ValidARIN, Other IRR2026-10-08
31.48.0.0/13 ValidRIPE2026-10-08
31.90.0.0/15 ValidRIPE2026-10-08
31.92.0.0/15 ValidRIPE2026-10-08
31.94.0.0/16 ValidRIPE2026-10-08
31.96.0.0/16 ValidRIPE2026-10-08
31.100.0.0/14 ValidRIPE2026-10-08
31.104.0.0/16 ValidRIPE2026-10-08
31.106.0.0/15 ValidRIPE2026-10-08
31.112.0.0/14 ValidRIPE2026-10-08
31.116.0.0/14 ValidRIPE2026-10-08
31.116.0.0/16 ValidRIPE2026-10-08
31.117.0.0/16 ValidRIPE2026-10-08
31.118.0.0/16 ValidRIPE2026-10-08
31.119.0.0/16 ValidRIPE2026-10-08
31.120.0.0/16 ValidRIPE2026-10-08
31.121.0.0/16 ValidRIPE2026-10-08
31.122.0.0/15 ValidRIPE2026-10-08
31.124.0.0/16 ValidRIPE2026-10-08
31.126.0.0/15 ValidRIPE2026-10-08
31.130.240.0/23 ValidRIPE2026-10-08
37.44.229.0/24 ValidOther IRR2026-10-08
37.44.230.0/24 ValidOther IRR2026-10-08
37.44.231.0/24 ValidOther IRR2026-10-08
37.97.112.0/22 ValidRIPE2026-10-08
37.143.0.0/22 ValidOther IRR, RIPE2026-10-08
37.230.61.0/24 ValidOther IRR, RIPE2026-10-08
40.27.28.0/24 ValidARIN, Other IRR2026-10-08
40.27.72.0/24 ValidARIN, Other IRR2026-10-08
45.39.116.0/24 ValidARIN, Other IRR2026-10-08
45.39.188.0/24 ValidARIN, Other IRR2026-10-08
45.149.7.0/24 ValidOther IRR, RIPE2026-10-08
45.149.168.0/23 ValidOther IRR2026-10-08
45.149.170.0/23 ValidOther IRR2026-10-08
46.68.0.0/15 ValidRIPE2026-10-08
46.68.66.0/24 ValidRIPE2026-10-08
46.248.96.0/22 ValidRIPE2026-10-08
46.248.102.0/23 ValidRIPE2026-10-08
46.248.104.0/23 ValidRIPE2026-10-08
46.248.120.0/22 ValidRIPE2026-10-08
50.117.7.0/24 ValidARIN, Other IRR2026-10-08
50.117.51.0/24 ValidARIN, Other IRR2026-10-08
50.118.154.0/23 ValidARIN, Other IRR2026-10-08
51.14.0.0/16 ValidRIPE2026-10-08
51.64.32.0/24No ROARIPE2026-10-08
51.64.34.0/24No ROARIPE2026-10-08
51.64.35.0/24No ROARIPE2026-10-08
51.146.40.0/22 Invalid-2026-10-08
51.146.44.0/22 ValidOther IRR, RIPE2026-10-08
51.146.56.0/22No ROA-2026-10-08
51.146.60.0/22 Invalid-2026-10-08
51.146.128.0/22 ValidOther IRR, RIPE2026-10-08
51.146.132.0/22No ROA-2026-10-08
51.146.136.0/22 ValidOther IRR, RIPE2026-10-08
51.146.235.0/24 ValidOther IRR, RIPE2026-10-08
51.146.252.0/22 ValidOther IRR, RIPE2026-10-08
51.149.18.0/24No ROARIPE2026-10-08
51.149.19.0/24No ROARIPE2026-10-08
51.194.36.0/23 ValidOther IRR, RIPE2026-10-08
51.194.40.0/21 Invalid-2026-10-08
51.194.88.0/21No ROA-2026-10-08
51.194.100.0/22 ValidOther IRR, RIPE2026-10-08
51.194.104.0/21No ROA-2026-10-08
51.194.120.0/21No ROA-2026-10-08