Autonomous system

AS13037

Autonomous System Number (ASN): AS13037
Country: United Kingdom of Great Britain and Northern Ireland (GB)
Organization: Zen Internet Ltd
Handle: ZEN-AS
Names and aliases: Zen Internet, Zen
Websites: http://www.zen.co.uk/
Category: isp
Network Role: access_provider
Number of IPv4: 527,616
Number of IPv6: 6.3383 x 10^29

IPv4 Prefixes

Showing up to 100 prefixes per page.

Prefix	Address Count	First Address	Last Address
51.148.0.0/16	65,536	51.148.0.0	51.148.255.255
51.155.0.0/16	65,536	51.155.0.0	51.155.255.255
62.3.64.0/18	16,384	62.3.64.0	62.3.127.255
77.104.128.0/18	16,384	77.104.128.0	77.104.191.255
82.68.0.0/15	131,072	82.68.0.0	82.69.255.255
82.71.0.0/16	65,536	82.71.0.0	82.71.255.255
88.97.0.0/18	16,384	88.97.0.0	88.97.63.255
88.97.64.0/20	4,096	88.97.64.0	88.97.79.255
88.97.88.0/22	1,024	88.97.88.0	88.97.91.255
88.97.96.0/20	4,096	88.97.96.0	88.97.111.255
88.98.0.0/20	4,096	88.98.0.0	88.98.15.255
88.98.16.0/23	512	88.98.16.0	88.98.17.255
88.98.18.0/24	256	88.98.18.0	88.98.18.255
88.98.21.0/24	256	88.98.21.0	88.98.21.255
88.98.22.0/23	512	88.98.22.0	88.98.23.255
88.98.24.0/21	2,048	88.98.24.0	88.98.31.255
88.98.32.0/19	8,192	88.98.32.0	88.98.63.255
88.98.64.0/19	8,192	88.98.64.0	88.98.95.255
88.98.128.0/19	8,192	88.98.128.0	88.98.159.255
88.98.160.0/21	2,048	88.98.160.0	88.98.167.255
88.98.170.0/23	512	88.98.170.0	88.98.171.255
88.98.172.0/22	1,024	88.98.172.0	88.98.175.255
88.98.176.0/20	4,096	88.98.176.0	88.98.191.255
91.235.214.0/24	256	91.235.214.0	91.235.214.255
146.66.64.0/18	16,384	146.66.64.0	146.66.127.255
185.6.135.0/24	256	185.6.135.0	185.6.135.255
185.81.232.0/22	1,024	185.81.232.0	185.81.235.255
185.169.116.0/22	1,024	185.169.116.0	185.169.119.255
185.183.100.0/22	1,024	185.183.100.0	185.183.103.255
188.122.32.0/20	4,096	188.122.32.0	188.122.47.255
188.122.48.0/21	2,048	188.122.48.0	188.122.55.255
188.122.56.0/22	1,024	188.122.56.0	188.122.59.255
188.122.60.0/23	512	188.122.60.0	188.122.61.255
188.122.63.0/24	256	188.122.63.0	188.122.63.255
212.23.0.0/19	8,192	212.23.0.0	212.23.31.255
217.155.0.0/16	65,536	217.155.0.0	217.155.255.255