81.133.196.0/24

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Summary

IP address summary information
ASN	AS2856 — British Telecommunications Limited
BGP Prefix	81.128.0.0/12
Pingable IPs	46
Routers	0


81.133.196.0	host81-133-196-0.in-addr.btopenworld.com
81.133.196.1	host81-133-196-1.in-addr.btopenworld.com
81.133.196.2	host81-133-196-2.in-addr.btopenworld.com
81.133.196.3	host81-133-196-3.in-addr.btopenworld.com
81.133.196.4	host81-133-196-4.in-addr.btopenworld.com
81.133.196.5	host81-133-196-5.in-addr.btopenworld.com
81.133.196.6	host81-133-196-6.in-addr.btopenworld.com
81.133.196.7	host81-133-196-7.in-addr.btopenworld.com	Ping
81.133.196.8	host81-133-196-8.in-addr.btopenworld.com
81.133.196.9	host81-133-196-9.in-addr.btopenworld.com
81.133.196.10	host81-133-196-10.in-addr.btopenworld.com
81.133.196.11	host81-133-196-11.in-addr.btopenworld.com
81.133.196.12	host81-133-196-12.in-addr.btopenworld.com
81.133.196.13	host81-133-196-13.in-addr.btopenworld.com
81.133.196.14	host81-133-196-14.in-addr.btopenworld.com

Traceroute

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

$ traceroute -a -n -q1 81.133.196.45

traceroute to 81.133.196.45 (81.133.196.45): 64 hops max, 52 byte packets

1 [AS15169] 74.125.251.219 239.136 ms

2 [AS2856] 109.159.253.194 200.263 ms

3 [AS2856] 194.72.16.201 200.661 ms

4 [AS2856] 62.172.103.57 200.335 ms

5 [AS2856] 217.32.26.113 201.239 ms

6 [AS2856] 81.133.196.45 224.034 ms

Measurement taken from

IPinfo ProbeNet in Chang-hua, TW

On July 21, 2026

Traceroute

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81.133.196.0/24

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Traceroute

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81.133.196.0/24

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