Autonomous Systems are networks typically governed by large ISPs that participate in global Internet routing. Each network is assigned a unique identification number known as the AS number or ASN by the Internet Assigned Numbers Authority.
| ASN | 12519 |
| Name | FASTNETUK |
| Organization | FastNet International Ltd |
| Country | United Kingdom
|
| Registry | RIPE NCC |
| IPv4 addresses | 28,672 |
| IPv6 /64 networks | 232 |
| Prefixes | 5 |
IPv4 Prefixes for AS12519
IPv6 Prefixes for AS12519
| Network |
Location |
/64 Prefixes |
| 2a02:13a0::/32 |
Fastnet International |
Brighton |
232 |