81.131.166.0/24

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Summary

IP address summary information
ASN	AS2856 — British Telecommunications Limited
BGP Prefix	81.128.0.0/12
Pingable IPs	215
Routers	0


81.131.166.0	—	0
81.131.166.1	—	0
81.131.166.2	—	0
81.131.166.3	—	0
81.131.166.4	host81-131-166-4.range81-131.btcentralplus.com	0
81.131.166.5	host81-131-166-5.range81-131.btcentralplus.com	0
81.131.166.6	host81-131-166-6.range81-131.btcentralplus.com	0
81.131.166.7	host81-131-166-7.range81-131.btcentralplus.com	0
81.131.166.8	—	0
81.131.166.9	host81-131-166-9.range81-131.btcentralplus.com	0
81.131.166.10	host81-131-166-10.range81-131.btcentralplus.com	0
81.131.166.11	host81-131-166-11.range81-131.btcentralplus.com	0
81.131.166.12	host81-131-166-12.range81-131.btcentralplus.com	0
81.131.166.13	—	0
81.131.166.14	host81-131-166-14.range81-131.btcentralplus.com	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 81.131.166.250

traceroute to 81.131.166.250 (81.131.166.250): 64 hops max, 52 byte packets

4 [AS2856] 213.121.193.174 1.214 ms

5 *

6 *

7 [AS2856] 81.131.166.250 13.244 ms

Measurement taken from

IPinfo ProbeNet in London, GB

On August 28, 2026

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81.131.166.0/24

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81.131.166.0/24

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