81.137.144.0/24

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Summary

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


81.137.144.0	host81-137-144-0.in-addr.btopenworld.com	0
81.137.144.1	host81-137-144-1.in-addr.btopenworld.com	0
81.137.144.2	host81-137-144-2.in-addr.btopenworld.com	0
81.137.144.3	host81-137-144-3.in-addr.btopenworld.com	0
81.137.144.4	host81-137-144-4.in-addr.btopenworld.com	0
81.137.144.5	host81-137-144-5.in-addr.btopenworld.com	0
81.137.144.6	host81-137-144-6.in-addr.btopenworld.com	0
81.137.144.7	host81-137-144-7.in-addr.btopenworld.com	0
81.137.144.8	host81-137-144-8.in-addr.btopenworld.com	0
81.137.144.9	host81-137-144-9.in-addr.btopenworld.com	0
81.137.144.10	host81-137-144-10.in-addr.btopenworld.com	0
81.137.144.11	host81-137-144-11.in-addr.btopenworld.com	0
81.137.144.12	host81-137-144-12.in-addr.btopenworld.com	0
81.137.144.13	host81-137-144-13.in-addr.btopenworld.com	0
81.137.144.14	host81-137-144-14.in-addr.btopenworld.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 -f2 -m13 81.137.144.162

traceroute to 81.137.144.162 (81.137.144.162): 13 hops max, 52 byte packets

2 [AS174] 154.54.161.109 0.83 ms

3 [AS174] 154.54.165.22 2.984 ms

4 [AS174] 154.54.30.153 5.631 ms

5 [AS174] 154.54.161.174 21.542 ms

6 [AS174] 154.54.5.218 22.625 ms

7 [AS174] 154.54.11.154 23.731 ms

8 [AS5400] 166.49.195.33 95.412 ms

9 [AS5400] 166.49.209.133 95.44 ms

10 [AS2856] 109.159.252.137 94.722 ms

11 *

12 *

13 *

Measurement taken from

IPinfo ProbeNet in Huntsville, US

On July 13, 2026

Traceroute

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81.137.144.0/24

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81.137.144.0/24

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