81.23.0.0/16
35 assigned ranges in this /16.
/24 breakdown
| Block | Top country | Countries | ASNs | Ranges |
|---|---|---|---|---|
| 81.23.0.0/24 | Russia (100%) | 1 | 1 | 1 |
| 81.23.10.0/24 | Russia (100%) | 1 | 1 | 1 |
| 81.23.13.0/24 | Russia (100%) | 1 | 1 | 1 |
| 81.23.14.0/24 | Russia (100%) | 1 | 1 | 1 |
| 81.23.15.0/24 | Russia (100%) | 1 | 1 | 1 |
| 81.23.16.0/24 | Ukraine (100%) | 1 | 1 | 1 |
| 81.23.32.0/24 | France (100%) | 1 | 1 | 1 |
| 81.23.48.0/24 | United Kingdom (100%) | 1 | 1 | 1 |
| 81.23.64.0/24 | Switzerland (100%) | 1 | 1 | 1 |
| 81.23.80.0/24 | Italy (100%) | 1 | 1 | 1 |
| 81.23.96.0/24 | Russia (100%) | 1 | 1 | 1 |
| 81.23.144.0/24 | Russia (100%) | 1 | 1 | 1 |
| 81.23.146.0/24 | Russia (100%) | 1 | 1 | 1 |
| 81.23.147.0/24 | Russia (100%) | 1 | 1 | 1 |
| 81.23.150.0/24 | Russia (100%) | 1 | 1 | 1 |
| 81.23.156.0/24 | Russia (100%) | 1 | 1 | 1 |
| 81.23.157.0/24 | Russia (100%) | 1 | 1 | 1 |
| 81.23.158.0/24 | Russia (100%) | 1 | 1 | 1 |
| 81.23.160.0/24 | Russia (100%) | 1 | 1 | 1 |
| 81.23.163.0/24 | Russia (100%) | 1 | 1 | 1 |
| 81.23.164.0/24 | Russia (100%) | 1 | 1 | 1 |
| 81.23.168.0/24 | Russia (100%) | 1 | 1 | 1 |
| 81.23.169.0/24 | Russia (100%) | 1 | 1 | 1 |
| 81.23.171.0/24 | Russia (100%) | 1 | 1 | 1 |
| 81.23.172.0/24 | Russia (100%) | 1 | 1 | 1 |
| 81.23.173.0/24 | Russia (100%) | 1 | 1 | 1 |
| 81.23.176.0/24 | Russia (100%) | 1 | 1 | 1 |
| 81.23.192.0/24 | Russia (100%) | 1 | 1 | 1 |
| 81.23.208.0/24 | Japan (100%) | 1 | 1 | 1 |
| 81.23.224.0/24 | Netherlands (100%) | 1 | 1 | 1 |
| 81.23.240.0/24 | Netherlands (100%) | 1 | 1 | 1 |
| 81.23.242.0/24 | Netherlands (100%) | 1 | 1 | 1 |
| 81.23.244.0/24 | Netherlands (100%) | 1 | 1 | 1 |
| 81.23.248.0/24 | United Kingdom (100%) | 1 | 1 | 1 |
| 81.23.251.0/24 | United Kingdom (100%) | 1 | 1 | 1 |
Assigned ranges
| Range | ASN | Org | Country |
|---|---|---|---|
81.23.0.0 – 81.23.9.255 | AS31261 | PJSC MegaFon | RU |
81.23.10.0 – 81.23.11.255 | AS51219 | K2 Integration JSC | RU |
81.23.13.0 – 81.23.13.255 | AS215106 | OOO Svyaz'-Invest Severo-Zapad | RU |
81.23.14.0 – 81.23.14.255 | AS31261 | PJSC MegaFon | RU |
81.23.15.0 – 81.23.15.255 | AS51472 | AO ARGUMENTY I FAKTY | RU |
81.23.16.0 – 81.23.31.255 | AS15895 | Kyivstar PJSC | UA |
81.23.32.0 – 81.23.47.255 | AS34863 | HEXANET SAS | FR |
81.23.48.0 – 81.23.63.255 | AS41230 | ASK4 Limited | GB |
81.23.64.0 – 81.23.79.255 | AS12350 | VTX Services SA | CH |
81.23.80.0 – 81.23.95.255 | AS39719 | Liguria Digitale S.p.A. | IT |
81.23.96.0 – 81.23.127.255 | AS24739 | JSC Severen-Telecom | RU |
81.23.144.0 – 81.23.145.255 | AS24810 | PJSC Rostelecom | RU |
81.23.146.0 – 81.23.146.255 | AS12389 | PJSC Rostelecom | RU |
81.23.147.0 – 81.23.149.255 | AS24810 | PJSC Rostelecom | RU |
81.23.150.0 – 81.23.155.255 | AS12389 | PJSC Rostelecom | RU |
20 more ranges in this block.