All ASNs

Autonomous System details for AS12519

AS12519

FastNet International Ltd • fastnet.co.uk

AS12519 — FastNet International Ltd

AS Name

FASTNETUK

Country

United Kingdom (GB)

Website

fastnet.co.uk

Number of IPv4

28,672

Number of IPv6

7.92 × 10²⁸

ASN type

ISP

Status

Allocated

Registry

RIPE

Allocated

June 12, 2002

Last updated

June 11, 2019

IP Ranges

4 IPv4 prefixes, 1 IPv6 prefixes

Prefix	Company	Number of IPs
81.31.64.0/20	FastNet International Ltd	4,096
82.148.32.0/19	FastNet International Ltd	8,192
87.252.32.0/19	ADSL WAN C1	8,192
212.42.160.0/19	FastNet International Ltd	8,192
2a02:13a0::/32	FastNet International Ltd	7.92 × 10²⁸

IP ranges are the different blocks of IP addresses advertised by an Autonomous System (AS). These ranges can be used by the same organization operating the AS, or by different organizations.

Peers of AS12519

26 peers

AS917 AS3170 AS4455 AS6894 AS6939 AS8218 AS39122 AS212483 AS20562 AS22356 AS24482 AS25160 AS28792 AS31742 AS34927 AS35266 AS39120 AS39351 AS48070 AS48185 AS49544 AS52075 AS132337 AS137409 AS207841 AS263444

AS12519 peers with these other Autonomous Systems.

Peering is a direct, often free, traffic exchange between Autonomous Systems (ASNs). They share routes only to their own networks and customers, making connections faster and cheaper for that specific traffic, without providing full internet access to each other.

Upstreams of AS12519

2 upstreams

AS1299 AS2914

AS12519 uses these Autonomous Systems as its upstreams.

An upstream (or transit provider) is another AS that AS12519 pays for full internet connectivity, allowing it to reach all global destinations and be reachable by them.

Downstreams of AS12519

2 downstreams

AS39530 AS201739

AS12519 provides internet connectivity to these downstream Autonomous Systems.

A downstream is a customer Autonomous System that pays another AS (its provider) for internet access. The provider AS carries the downstream's traffic and makes its network reachable.