The IP address 23.51.154 is provided by Telefonica Wholesale Network, it's belong to the CDIR (Classless Inter-Domain Routing) 23.51.144.0/20 (range 23.51.144.0 to 23.51.159.255). The autonomous system number (ASN) is 12956.
| ASN | 12956 | 
| IP starting by | 23.51.144.0 | 
| IP ending by | 23.51.159.255 | 
| ASN Name | Telefonica Wholesale Network | 
| CDIR | 23.51.144.0/20 | 
| Numerical IP | |
| Registry | arin | 
| Last update | 04/07/2017 | 

| Country Code | Country | Region | City | Latitude | Longitude | Last update | |
| IP2Location | ES | Spain | - | Madrid | 40.4165 | -3.7026 | 2017-07-04 | 
| MaxMind | US | United States | - | Cambridge | 42.3626 | -71.0843 | 2017-07-04 | 
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |