81.139.0.0/16

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Summary

IP address summary information
ASNs	1
Countries	1
BGP Prefixes	1
Routers	921
Pingable IPs	1,600

United Kingdom
100.00%


81.139.0.0/24	United Kingdom100.00%	1	1	0
81.139.1.0/24	United Kingdom100.00%	1	1	12
81.139.2.0/24	United Kingdom100.00%	1	1	0
81.139.3.0/24	United Kingdom100.00%	1	1	0
81.139.4.0/24	United Kingdom100.00%	1	1	0
81.139.5.0/24	United Kingdom100.00%	1	1	0
81.139.6.0/24	United Kingdom100.00%	1	1	0
81.139.7.0/24	United Kingdom100.00%	1	1	0
81.139.8.0/24	United Kingdom100.00%	1	1	0
81.139.9.0/24	United Kingdom100.00%	1	1	0

Sub-ranges

Important routers in 81.139.0.0/16


81.139.57.234	London, United Kingdom	AS2856British Telecommunications Limited
81.139.56.228	London, United Kingdom	AS2856British Telecommunications Limited
81.139.56.232	London, United Kingdom	AS2856British Telecommunications Limited
81.139.56.226	London, United Kingdom	AS2856British Telecommunications Limited
81.139.57.228	London, United Kingdom	AS2856British Telecommunications Limited
81.139.57.232	London, United Kingdom	AS2856British Telecommunications Limited
81.139.56.234	London, United Kingdom	AS2856British Telecommunications Limited
81.139.57.226	London, United Kingdom	AS2856British Telecommunications Limited
81.139.160.1	London, United Kingdom	AS2856British Telecommunications Limited
81.139.176.1	London, United Kingdom	AS2856British Telecommunications Limited

Important routers in 81.139.0.0/16

Pingable IPs

1,600 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.


81.139.32.130	AS2856British Telecommunications Limited	1.30ms from Erith, GB
81.139.37.81	AS2856British Telecommunications Limited	1.05ms from London, GB
81.139.33.141	AS2856British Telecommunications Limited	0.98ms from London, GB
81.139.34.74	AS2856British Telecommunications Limited	1.95ms from London, GB
81.139.36.129	AS2856British Telecommunications Limited	1.07ms from London, GB
81.139.1.10	AS2856British Telecommunications Limited	2.06ms from London, GB
81.139.4.3	AS2856British Telecommunications Limited	1.26ms from London, GB
81.139.35.121	AS2856British Telecommunications Limited	1.39ms from London, GB
81.139.38.51	AS2856British Telecommunications Limited	1.90ms from London, GB
81.139.196.146	AS2856British Telecommunications Limited	2.87ms from Erith, GB

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.


125.39.219.48	AS4837CHINA UNICOM China169 Backbone	5.16ms from Beijing, CN
101.37.40.128	AS37963Hangzhou Alibaba Advertising Co.,Ltd.	3.90ms from Hangzhou, CN
111.12.182.16	AS9808China Mobile Communications Group Co., Ltd.	5.11ms from Lanzhou, CN
123.243.121.224	AS7545TPG Telecom Limited	1.48ms from Melbourne, AU
197.248.115.96	AS37061Safaricom Limited	6.74ms from Nairobi, KE
35.137.89.240	AS33363Charter Communications, Inc	8.89ms from Orlando, US
163.140.88.240	AS2497Internet Initiative Japan Inc.	19.70ms from Osaka, JP
123.235.177.176	AS4837CHINA UNICOM China169 Backbone	3.23ms from Qingdao, CN
76.224.21.160	AS7018AT&T Enterprises, LLC	3.27ms from San Francisco, US
191.8.83.224	AS27699TELEFÔNICA BRASIL S.A	2.97ms from Sao Paulo, BR

Pingable IPs

Traceroute

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

$ traceroute -a -n -q1 -f2 -m10 81.139.30.183

traceroute to 81.139.30.183 (81.139.30.183): 10 hops max, 52 byte packets

2 [AS31034] 62.149.185.123 518.023 ms

3 [AS31034] 217.61.32.144 1.031 ms

4 [AS31034] 217.61.32.88 4.67 ms

5 [AS9002] 87.245.231.156 4.458 ms

6 [AS9002] 87.245.234.54 26.028 ms

7 [AS2856] 195.99.125.68 26.161 ms

8 *

9 *

10 *

Measurement taken from

IPinfo ProbeNet in Arezzo, IT

On July 12, 2026

Traceroute

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81.139.0.0/16

Summary

Sub-ranges

Important routers in 81.139.0.0/16

Important routers in 81.139.0.0/16

Pingable IPs

Other Pingable IPs

Pingable IPs

Traceroute

Traceroute

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Important routers in 81.139.0.0/16

Pingable IPs

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Traceroute

81.139.0.0/16

Summary

Statistics

Statistics

Sub-ranges

Sub-ranges

Important routers in 81.139.0.0/16

Important routers in 81.139.0.0/16

Pingable IPs

Other Pingable IPs

Pingable IPs

Traceroute

Traceroute

An API built with users in mind: reliable, accurate, and easy-to-use

Our IP tools

What is my IP?

Map IPs

Summarize IPs

Statistics

Sub-ranges

Important routers in 81.139.0.0/16

Pingable IPs

Other Pingable IPs

Traceroute