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Autonomous System details for AS42081

AS42081

European Centre for Medium-Range Weather Forecasts (ECMWF) • ecmwf.int

AS42081 — European Centre for Medium-Range Weather Forecasts (ECMWF)

AS Name

ecmwf-it

Country

United Kingdom (GB)

Website

ecmwf.int

Number of IPv4

28,416

Number of IPv6

2.42 × 10²⁴

ASN type

Business

Status

Allocated

Registry

RIPE

Allocated

December 14, 2018

Last updated

October 08, 2022

IP Ranges

7 IPv4 prefixes, 2 IPv6 prefixes

Prefix	Company	Number of IPs
77.83.224.0/23	European Centre for Medium-Range Weather Forecasts (ECMWF)	512
77.83.226.0/24	ECMWF BOL	256
136.156.32.0/22	European Centre for Medium-Range Weather Forecasts (ECMWF)	1,024
136.156.40.0/21	European Centre for Medium-Range Weather Forecasts (ECMWF)	2,048
136.156.128.0/20	European Centre for Medium-Range Weather Forecasts (ECMWF)	4,096
136.156.144.0/20	European Centre for Medium-Range Weather Forecasts (ECMWF)	4,096
136.156.192.0/18	EURO MET NET DC	16,384
2a09:9180:ecfb::/48	ECMWF BOL	1.21 × 10²⁴
2a09:9180:ecfd::/48	ECMWF BOL	1.21 × 10²⁴

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 AS42081

0 peers

AS42081 has no peers recorded.

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 AS42081

2 upstreams

AS137 AS31638

AS42081 uses these Autonomous Systems as its upstreams.

An upstream (or transit provider) is another AS that AS42081 pays for full internet connectivity, allowing it to reach all global destinations and be reachable by them.

Downstreams of AS42081

0 downstreams

AS42081 has no downstreams recorded.

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.