81.131.123.0/24

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Summary

IP address summary information
ASN	AS2856 — British Telecommunications Limited
BGP Prefix	81.128.0.0/12
Pingable IPs	104
Routers	0


81.131.123.0	—	0
81.131.123.1	host81-131-123-1.range81-131.btcentralplus.com	0
81.131.123.2	host81-131-123-2.range81-131.btcentralplus.com	0
81.131.123.3	host81-131-123-3.range81-131.btcentralplus.com	0
81.131.123.4	—	0
81.131.123.5	—	0
81.131.123.6	—	0
81.131.123.7	—	0
81.131.123.8	host81-131-123-8.range81-131.btcentralplus.com	0
81.131.123.9	—	0
81.131.123.10	host81-131-123-10.range81-131.btcentralplus.com	0
81.131.123.11	host81-131-123-11.range81-131.btcentralplus.com	0
81.131.123.12	host81-131-123-12.range81-131.btcentralplus.com	0
81.131.123.13	—	0
81.131.123.14	—	0

Traceroute

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

$ traceroute -a -n -q1 -f4 81.131.123.214

traceroute to 81.131.123.214 (81.131.123.214): 64 hops max, 52 byte packets

4 [AS2856] 62.172.102.18 1.456 ms

5 *

6 *

7 [AS2856] 81.131.123.214 13.437 ms

Measurement taken from

IPinfo ProbeNet in London, GB

On August 28, 2026

Traceroute

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81.131.123.0/24

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81.131.123.0/24

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