AS2856

Name: AS2856 — British Telecommunications PLC
Creator: ipdex

British Telecommunications PLC ISP registered in United Kingdom

481IPv4 prefixes

6IPv6 prefixes

69%RPKI-valid

#340AS Rank

#6Rank in United Kingdom

1993-12-22Allocated

British Telecommunications PLC (AS2856) — ISP, registered in United Kingdom. announces 481 IPv4 prefixes + 6 IPv6 prefixes. Rank in United Kingdom: #6. Allocated: 1993-12-22.

IPv4 481IPv6 6

Announced prefixes · 487

v4 164.38.12.0/24 unknown
v4 164.38.120.0/22 unknown
v4 164.38.134.0/24 unknown
v4 164.38.148.0/24 unknown
v4 164.38.149.0/24 unknown
v4 164.38.156.0/24 unknown
v4 164.38.16.0/22 unknown
v4 164.38.184.0/22 unknown
v4 164.38.196.0/24 unknown
v4 164.38.197.0/24 unknown
v4 164.38.2.0/24 unknown
v4 164.38.31.0/24 unknown
v4 164.38.32.0/24 unknown
v4 164.38.33.0/24 unknown
v4 164.38.34.0/24 unknown
v4 165.120.0.0/16 unknown
v4 166.88.17.0/24 valid
v4 166.88.18.0/24 valid
v4 166.88.200.0/24 valid
v4 166.88.32.0/24 valid
v4 167.148.60.0/22 valid
v4 178.212.56.0/23 valid
v4 178.78.106.0/23 valid
v4 178.78.108.0/22 valid
v4 178.78.112.0/21 valid
v4 178.78.120.0/21 valid
v4 178.92.112.0/22 valid
v4 178.92.180.0/22 valid
v4 178.93.104.0/22 valid
v4 178.94.244.0/22 valid
v4 178.95.60.0/22 valid
v4 185.128.205.0/24 unknown
v4 185.149.6.0/24 unknown
v4 185.177.64.0/23 valid
v4 185.230.13.0/24 valid
v4 185.230.15.0/24 valid
v4 185.58.165.0/24 unknown
v4 185.68.200.0/22 valid
v4 185.90.32.0/22 unknown
v4 188.172.160.0/21 valid
v4 188.172.168.0/21 valid
v4 192.12.73.0/24 valid
v4 192.152.14.0/24 unknown
v4 192.53.46.0/24 unknown
v4 192.65.219.0/24 valid
v4 192.65.221.0/24 valid
v4 192.65.222.0/24 valid
v4 192.65.223.0/24 valid
v4 192.65.224.0/24 valid
v4 192.65.225.0/24 valid

RPKI: rpki.cloudflare.com · 2026-06-20

— Routing status unavailable

Prefix history

Announced prefixes Source: ipdex daily snapshot · sparse rows, value holds until the next change (steps)

Data table

Day	Announced prefixes
2026-06-12	481
2026-06-13	481
2026-06-16	481
2026-06-19	487
2026-06-20	487

Internet Exchanges · 2

LINX LON1 London 500 Gbps
LINX LON2 London 200 Gbps

Facilities · 3

3 Facilities · 1 Countries

Digital Realty London LHR20 London
Equinix LD5 - London, Slough Slough
Telehouse - London (Docklands North Two) London

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AS2856

Announced prefixes · 487

Prefix history

Internet Exchanges · 2

Facilities · 3

AS topology · Customer cone 154

Providers · 4

Peers · 92

Customers · 151

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