81.134.51.0/24

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Summary

IP address summary information
ASN	AS2856 — British Telecommunications Limited
BGP Prefix	81.128.0.0/12
Pingable IPs	148
Routers	0


81.134.51.0	host81-134-51-0.in-addr.btopenworld.com
81.134.51.1	host81-134-51-1.in-addr.btopenworld.com	Ping
81.134.51.2	host81-134-51-2.in-addr.btopenworld.com
81.134.51.3	host81-134-51-3.in-addr.btopenworld.com	Ping
81.134.51.4	host81-134-51-4.in-addr.btopenworld.com	Ping
81.134.51.5	host81-134-51-5.in-addr.btopenworld.com	Ping
81.134.51.6	host81-134-51-6.in-addr.btopenworld.com
81.134.51.7	host81-134-51-7.in-addr.btopenworld.com
81.134.51.8	host81-134-51-8.in-addr.btopenworld.com
81.134.51.9	host81-134-51-9.in-addr.btopenworld.com	Ping
81.134.51.10	host81-134-51-10.in-addr.btopenworld.com
81.134.51.11	host81-134-51-11.in-addr.btopenworld.com	Ping
81.134.51.12	host81-134-51-12.in-addr.btopenworld.com
81.134.51.13	host81-134-51-13.in-addr.btopenworld.com
81.134.51.14	host81-134-51-14.in-addr.btopenworld.com	Ping

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.

$ traceroute -a -n -q1 -f4 81.134.51.194

traceroute to 81.134.51.194 (81.134.51.194): 64 hops max, 52 byte packets

4 [AS2856] 109.159.255.240 1.496 ms

5 [AS2856] 109.159.250.103 1.258 ms

6 [AS2856] 213.120.163.241 1.214 ms

7 [AS2856] 81.134.51.194 14.369 ms

Measurement taken from

IPinfo ProbeNet in London, GB

On August 7, 2026

Traceroute

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81.134.51.0/24

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Traceroute

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81.134.51.0/24

Summary

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