81.159.4.0/24

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Summary

IP address summary information
ASN	AS2856 — British Telecommunications Limited
BGP Prefix	81.128.0.0/11
Pingable IPs	238
Routers	0


81.159.4.0	host81-159-4-0.range81-159.btcentralplus.com	0
81.159.4.1	host81-159-4-1.range81-159.btcentralplus.com	0
81.159.4.2	host81-159-4-2.range81-159.btcentralplus.com	0
81.159.4.3	host81-159-4-3.range81-159.btcentralplus.com	0
81.159.4.4	—	0
81.159.4.5	host81-159-4-5.range81-159.btcentralplus.com	0
81.159.4.6	host81-159-4-6.range81-159.btcentralplus.com	0
81.159.4.7	—	0
81.159.4.8	host81-159-4-8.range81-159.btcentralplus.com	0
81.159.4.9	—	0
81.159.4.10	—	0
81.159.4.11	host81-159-4-11.range81-159.btcentralplus.com	0
81.159.4.12	host81-159-4-12.range81-159.btcentralplus.com	0
81.159.4.13	host81-159-4-13.range81-159.btcentralplus.com	0
81.159.4.14	host81-159-4-14.range81-159.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 81.159.4.78

traceroute to 81.159.4.78 (81.159.4.78): 64 hops max, 52 byte packets

4 [AS2856] 62.6.204.160 1.533 ms

5 *

6 *

7 [AS2856] 81.159.4.78 2.564 ms

Measurement taken from

IPinfo ProbeNet in London, GB

On August 28, 2026

Traceroute

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81.159.4.0/24

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Traceroute

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81.159.4.0/24

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