All ASNs

Autonomous System details for AS21396

AS21396

NetConnex Broadband Ltd. • ncuk.net

AS21396 — NetConnex Broadband Ltd.

AS Name

NETCONNEX

Country

United Kingdom (GB)

Website

ncuk.net

Number of IPv4

11,008

Number of IPv6

1.35 × 10³⁰

ASN type

ISP

Status

Allocated

Registry

RIPE

Allocated

September 17, 2002

Last updated

May 07, 2025

IP Ranges

8 IPv4 prefixes, 4 IPv6 prefixes

Prefix	Company	Number of IPs
5.182.220.0/22	NetConnex Broadband Ltd.	1,024
77.95.218.0/24	NEXCON.IO ApS	256
80.249.96.0/20	NetConnex Broadband Ltd.	4,096
141.0.208.0/20	NetConnex Internal Infrastructure	4,096
193.203.210.0/23	ThisIsUniverse ApS	512
193.223.78.0/24	Community DNS Limited	256
194.117.248.0/23	Lovefilm International Ltd.	512
194.180.187.0/24	cdns5	256
2a02:68::/29	NetConnex Broadband Ltd.	6.34 × 10²⁹
2a02:68::/32	NetConnex Broadband Ltd.	7.92 × 10²⁸
2a05:98c0::/29	NEXCON.IO ApS	6.34 × 10²⁹
2a13:f040::/48	Community DNS Limited	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 AS21396

30 peers

AS1267 AS1828 AS3741 AS4637 AS6667 AS6894 AS6939 AS8426 AS8943 AS8966 AS9044 AS12552 AS13030 AS20562 AS3170 AS5413 AS14537 AS24940 AS29169 AS30844 AS33891 AS34288 AS37100 AS37271 AS37662 AS39351 AS41327 AS48185 AS49544 AS50300

AS21396 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 AS21396

3 upstreams

AS2914 AS6762 AS41230

AS21396 uses these Autonomous Systems as its upstreams.

An upstream (or transit provider) is another AS that AS21396 pays for full internet connectivity, allowing it to reach all global destinations and be reachable by them.

Downstreams of AS21396

1 downstreams

AS12775

AS21396 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.