81.21.0.0/16
35 assigned ranges in this /16.
/24 breakdown
| Block | Top country | Countries | ASNs | Ranges |
|---|---|---|---|---|
| 81.21.0.0/24 | Jordan (100%) | 1 | 1 | 1 |
| 81.21.16.0/24 | Italy (100%) | 1 | 1 | 1 |
| 81.21.32.0/24 | Cyprus (100%) | 1 | 1 | 1 |
| 81.21.34.0/24 | Cyprus (100%) | 1 | 1 | 1 |
| 81.21.35.0/24 | Cyprus (100%) | 1 | 1 | 1 |
| 81.21.38.0/24 | Cyprus (100%) | 1 | 1 | 1 |
| 81.21.39.0/24 | Cyprus (100%) | 1 | 1 | 1 |
| 81.21.41.0/24 | Cyprus (100%) | 1 | 1 | 1 |
| 81.21.42.0/24 | Cyprus (100%) | 1 | 1 | 1 |
| 81.21.43.0/24 | Cyprus (100%) | 1 | 1 | 1 |
| 81.21.44.0/24 | Cyprus (100%) | 1 | 1 | 1 |
| 81.21.45.0/24 | Cyprus (100%) | 1 | 1 | 1 |
| 81.21.46.0/24 | Cyprus (100%) | 1 | 1 | 1 |
| 81.21.47.0/24 | Cyprus (100%) | 1 | 1 | 1 |
| 81.21.48.0/24 | Saudi Arabia (100%) | 1 | 1 | 1 |
| 81.21.80.0/24 | Azerbaijan (100%) | 1 | 1 | 1 |
| 81.21.96.0/24 | Egypt (100%) | 1 | 1 | 1 |
| 81.21.99.0/24 | Egypt (100%) | 1 | 1 | 1 |
| 81.21.102.0/24 | Egypt (100%) | 1 | 1 | 1 |
| 81.21.112.0/24 | Austria (100%) | 1 | 1 | 1 |
| 81.21.128.0/24 | Italy (100%) | 1 | 1 | 1 |
| 81.21.136.0/24 | Netherlands (100%) | 1 | 1 | 1 |
| 81.21.137.0/24 | Netherlands (100%) | 1 | 1 | 1 |
| 81.21.144.0/24 | United States (100%) | 1 | 1 | 1 |
| 81.21.151.0/24 | United States (100%) | 1 | 1 | 1 |
| 81.21.160.0/24 | Turkey (100%) | 1 | 1 | 1 |
| 81.21.176.0/24 | Netherlands (100%) | 1 | 1 | 1 |
| 81.21.192.0/24 | Poland (100%) | 1 | 1 | 1 |
| 81.21.206.0/24 | Poland (100%) | 1 | 1 | 1 |
| 81.21.207.0/24 | Poland (100%) | 1 | 1 | 1 |
| 81.21.224.0/24 | Sweden (100%) | 1 | 1 | 1 |
| 81.21.228.0/24 | Spain (100%) | 1 | 1 | 1 |
| 81.21.232.0/24 | India (100%) | 1 | 1 | 1 |
| 81.21.236.0/24 | United States (100%) | 1 | 1 | 1 |
| 81.21.240.0/24 | EU (100%) | 1 | 1 | 1 |
Assigned ranges
| Range | ASN | Org | Country |
|---|---|---|---|
81.21.0.0 – 81.21.15.255 | AS50670 | VTEL HOLDINGS LIMITED/JORDAN CO. | JO |
81.21.16.0 – 81.21.31.255 | AS30848 | UNIDATA S.p.A. | IT |
81.21.32.0 – 81.21.33.255 | AS16229 | Primetel PLC | CY |
81.21.34.0 – 81.21.34.255 | AS8544 | Primetel PLC | CY |
81.21.35.0 – 81.21.37.255 | AS16229 | Primetel PLC | CY |
81.21.38.0 – 81.21.38.255 | AS8544 | Primetel PLC | CY |
81.21.39.0 – 81.21.40.255 | AS16229 | Primetel PLC | CY |
81.21.41.0 – 81.21.41.255 | AS8544 | Primetel PLC | CY |
81.21.42.0 – 81.21.42.255 | AS16229 | Primetel PLC | CY |
81.21.43.0 – 81.21.43.255 | AS30916 | Primetel PLC | CY |
81.21.44.0 – 81.21.44.255 | AS16229 | Primetel PLC | CY |
81.21.45.0 – 81.21.45.255 | AS30916 | Primetel PLC | CY |
81.21.46.0 – 81.21.46.255 | AS8544 | Primetel PLC | CY |
81.21.47.0 – 81.21.47.255 | AS16229 | Primetel PLC | CY |
81.21.48.0 – 81.21.63.255 | AS39228 | Integrated Networks Co. | SA |
20 more ranges in this block.