asn.dev

Address space

AS13037 ZEN-AS Zen Internet - UK

IPv4 prefixes 36 528K addresses
IPv6 prefixes 1
Most common size /22 IPv4
Flagged 0

Shape

Prefix sizes

IPv4
/15
/15: 1
1
/16
/16: 4
4
/18
/18: 4
4
/19
/19: 4
4
/20
/20: 5
5
/21
/21: 3
3
/22
/22: 6
6
/23
/23: 4
4
/24
/24: 5
5

How this network carves its IPv4 space. A wall of /24s usually means many small customer assignments or fine-grained traffic engineering; a few short prefixes means large contiguous allocations announced whole.

Shape

Prefix sizes

IPv6
/29
/29: 1
1

Geography

Where the space lands

CountryNamePrefixes
GBUnited Kingdom37

Inventory

All prefixes

37 total
PrefixFamilyAddressesCountryFlags
51.148.0.0/16IPv465,536GB
51.155.0.0/16IPv465,536GB
62.3.64.0/18IPv416,384GB
77.104.128.0/18IPv416,384GB
82.68.0.0/15IPv4131,072GB
82.71.0.0/16IPv465,536GB
88.97.0.0/18IPv416,384GB
88.97.64.0/20IPv44,096GB
88.97.88.0/22IPv41,024GB
88.97.96.0/20IPv44,096GB
88.98.0.0/20IPv44,096GB
88.98.16.0/23IPv4512GB
88.98.18.0/24IPv4256GB
88.98.21.0/24IPv4256GB
88.98.22.0/23IPv4512GB
88.98.24.0/21IPv42,048GB
88.98.32.0/19IPv48,192GB
88.98.64.0/19IPv48,192GB
88.98.128.0/19IPv48,192GB
88.98.160.0/21IPv42,048GB
88.98.170.0/23IPv4512GB
88.98.172.0/22IPv41,024GB
88.98.176.0/20IPv44,096GB
91.235.214.0/24IPv4256GB
146.66.64.0/18IPv416,384GB
185.6.135.0/24IPv4256GB
185.81.232.0/22IPv41,024GB
185.169.116.0/22IPv41,024GB
185.183.100.0/22IPv41,024GB
188.122.32.0/20IPv44,096GB
188.122.48.0/21IPv42,048GB
188.122.56.0/22IPv41,024GB
188.122.60.0/23IPv4512GB
188.122.63.0/24IPv4256GB
212.23.0.0/19IPv48,192GB
217.155.0.0/16IPv465,536GB
2a02:8010::/29IPv6—GB