Whois: 5.81.0.0/16
| IP Range: | 5.81.0.0 - 5.81.127.255 (33,768 total) |
| IP Location: |  United Kingdom |
| ISP Company: | British Telecommunications PLC  |
| ISP ASN: | AS2856 |
| ISP Address: | British Telecommunications,81 Newgate Street,London GB, |
| ISP Country: | United Kingdom, London |
5.81.0.0/16 domains
| # | Name | IPv4 | IPv6 | Rank | Updated |
|---|---|---|---|---|---|
| No results |
5.81.0.0/16 Nameservers
| # | NameServer | IPv4 | IPv6 | Updated |
|---|---|---|---|---|
| No results |
5.81.0.0/16 users
| # | IP | OS | Browser | Updated |
|---|---|---|---|---|
| 1 | 5.81.90.230 |  Mac OS X |
 Chrome 145.0 |
Last seen: 07.06.2026 |
| 2 | 5.81.70.215 |  Windows 10 |
Chrome 128.0 |
Last seen: 07.06.2026 |
| 3 | 5.81.11.74 | Mac OS X |
Chrome 125.0 |
Last seen: 04.06.2026 |
| 4 | 5.81.30.223 | Windows 10 |
Chrome 99.0 |
Last seen: 04.06.2026 |
| 5 | 5.81.32.253 | Windows 10 |
Chrome 133.0 |
Last seen: 24.05.2026 |
| 6 | 5.81.62.131 | Windows 10 |
Chrome 126.0 |
Last seen: 24.05.2026 |
| 7 | 5.81.67.232 | Mac OS X |
Chrome 126.0 |
Last seen: 16.05.2026 |
| 8 | 5.81.20.39 |  Unknown OS Platform |
DefaultProperties |
Last seen: 15.05.2026 |
| 9 | 5.81.93.16 | Mac OS X |
Chrome 124.0 |
Last seen: 13.05.2026 |
| 10 | 5.81.32.253 | Mac OS X |
Chrome 129.0 |
Last seen: 12.05.2026 |
| 11 | 5.81.93.16 | Mac OS X |
Chrome 133.0 |
Last seen: 12.05.2026 |
| 12 | 5.81.11.74 | Mac OS X |
Chrome 134.0 |
Last seen: 12.05.2026 |
| 13 | 5.81.62.131 | Mac OS X |
Chrome 132.0 |
Last seen: 07.05.2026 |
| 14 | 5.81.7.23 | Mac OS X |
Chrome 136.0 |
Last seen: 03.05.2026 |
| 15 | 5.81.31.84 | Mac OS X |
Chrome 131.0 |
Last seen: 02.05.2026 |
| 16 | 5.81.60.67 | Windows 10 |
 Firefox 128.0 |
Last seen: 01.05.2026 |
| 17 | 5.81.62.118 | Mac OS X |
Chrome 136.0 |
Last seen: 28.04.2026 |
| 18 | 5.81.33.212 | Mac OS X |
Chrome 142.0 |
Last seen: 13.04.2026 |
| 19 | 5.81.81.170 | Mac OS X |
Chrome 142.0 |
Last seen: 01.04.2026 |
| 20 | 5.81.21.36 |  Linux |
 Opera Generic |
Last seen: 15.12.2025 |
