81.172.0.0/16
27 assigned ranges in this /16.
/24 breakdown
| Block | Top country | Countries | ASNs | Ranges |
|---|---|---|---|---|
| 81.172.32.0/24 | Spain (100%) | 1 | 1 | 1 |
| 81.172.37.0/24 | Spain (100%) | 1 | 1 | 1 |
| 81.172.40.0/24 | Spain (100%) | 1 | 1 | 1 |
| 81.172.44.0/24 | Spain (100%) | 1 | 1 | 1 |
| 81.172.46.0/24 | Spain (100%) | 1 | 1 | 1 |
| 81.172.48.0/24 | United States (100%) | 1 | 1 | 1 |
| 81.172.59.0/24 | United States (100%) | 1 | 1 | 1 |
| 81.172.60.0/24 | Spain (100%) | 1 | 1 | 1 |
| 81.172.64.0/24 | Ireland (100%) | 1 | 1 | 1 |
| 81.172.66.0/24 | Hong Kong (100%) | 1 | 1 | 1 |
| 81.172.68.0/24 | Spain (100%) | 1 | 1 | 1 |
| 81.172.72.0/24 | Spain (100%) | 1 | 1 | 1 |
| 81.172.80.0/24 | Spain (100%) | 1 | 1 | 1 |
| 81.172.88.0/24 | Spain (100%) | 1 | 1 | 1 |
| 81.172.96.0/24 | Spain (100%) | 1 | 1 | 1 |
| 81.172.99.0/24 | United States (100%) | 1 | 1 | 1 |
| 81.172.100.0/24 | Spain (100%) | 1 | 1 | 1 |
| 81.172.101.0/24 | Spain (100%) | 1 | 1 | 1 |
| 81.172.102.0/24 | Spain (100%) | 1 | 1 | 1 |
| 81.172.103.0/24 | Spain (100%) | 1 | 1 | 1 |
| 81.172.112.0/24 | Spain (100%) | 1 | 1 | 1 |
| 81.172.116.0/24 | Hong Kong (100%) | 1 | 1 | 1 |
| 81.172.117.0/24 | Spain (100%) | 1 | 1 | 1 |
| 81.172.118.0/24 | Spain (100%) | 1 | 1 | 1 |
| 81.172.119.0/24 | Spain (100%) | 1 | 1 | 1 |
| 81.172.120.0/24 | Spain (100%) | 1 | 1 | 1 |
| 81.172.128.0/24 | Netherlands (100%) | 1 | 1 | 1 |
Assigned ranges
| Range | ASN | Org | Country |
|---|---|---|---|
81.172.32.0 – 81.172.36.255 | AS29119 | AIRE NETWORKS DEL MEDITERRANEO SL UNIPERSONAL | ES |
81.172.37.0 – 81.172.39.255 | AS206276 | Citelia s.a. | ES |
81.172.40.0 – 81.172.43.255 | AS58327 | FIBERGREEN TECNOLOGICAS S.L. | ES |
81.172.44.0 – 81.172.44.255 | AS49178 | Nadunet Telecom S.L | ES |
81.172.46.0 – 81.172.47.255 | AS215018 | CORTEX SP COMPUTER S.L. | ES |
81.172.48.0 – 81.172.55.255 | AS398781 | OCULUS NETWORKS INC | US |
81.172.59.0 – 81.172.59.255 | AS398781 | OCULUS NETWORKS INC | US |
81.172.60.0 – 81.172.63.255 | AS209492 | INFORMATICA Y TELECOMUNICACIONES SARRIA S.L. | ES |
81.172.64.0 – 81.172.65.255 | AS216414 | UPMC GLOBAL OPERATIONS CENTER LIMITED | IE |
81.172.66.0 – 81.172.66.255 | AS131274 | Cypress Telecom Limited | HK |
81.172.68.0 – 81.172.69.255 | AS214123 | Virtualizame SL | ES |
81.172.72.0 – 81.172.79.255 | AS210423 | ATUAXANELA S.L. | ES |
81.172.80.0 – 81.172.87.255 | AS198760 | Quattre Internet SL | ES |
81.172.88.0 – 81.172.95.255 | AS58327 | FIBERGREEN TECNOLOGICAS S.L. | ES |
81.172.96.0 – 81.172.98.255 | AS216426 | Daratel TIC S.L | ES |
12 more ranges in this block.