asn.dev

Address space

AS31463 FOURD-AS

IPv4 prefixes 38 34.30K addresses
IPv6 prefixes 20
Most common size /24 IPv4
Flagged 0

Shape

Prefix sizes

IPv4
/20
/20: 1
1
/21
/21: 6
6
/22
/22: 11
11
/23
/23: 6
6
/24
/24: 14
14

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
/30
/30: 1
1
/31
/31: 1
1
/32
/32: 1
1
/33
/33: 1
1
/34
/34: 1
1
/35
/35: 1
1
/36
/36: 1
1
/37
/37: 1
1
/38
/38: 1
1
/39
/39: 1
1
/40
/40: 2
2
/41
/41: 1
1
/42
/42: 1
1
/43
/43: 1
1
/44
/44: 1
1
/45
/45: 1
1
/46
/46: 2
2

Geography

Where the space lands

CountryNamePrefixes
GBUnited Kingdom58

Inventory

All prefixes

58 total
PrefixFamilyAddressesCountryFlags
37.209.208.0/20IPv44,096GB
45.140.136.0/22IPv41,024GB
45.140.252.0/22IPv41,024GB
46.245.248.0/21IPv42,048GB
79.99.64.0/21IPv42,048GB
79.174.28.0/22IPv41,024GB
87.76.18.0/23IPv4512GB
87.76.20.0/24IPv4256GB
87.76.22.0/23IPv4512GB
87.76.24.0/24IPv4256GB
87.76.27.0/24IPv4256GB
87.76.28.0/22IPv41,024GB
91.199.252.0/24IPv4256GB
91.220.24.0/24IPv4256GB
93.177.127.0/24IPv4256GB
94.228.32.0/22IPv41,024GB
94.228.36.0/23IPv4512GB
94.228.38.0/24IPv4256GB
94.228.39.0/24IPv4256GB
94.228.40.0/21IPv42,048GB
109.71.78.0/24IPv4256GB
109.74.20.0/22IPv41,024GB
165.84.208.0/23IPv4512GB
165.84.216.0/21IPv42,048GB
173.249.153.0/24IPv4256GB
173.249.154.0/23IPv4512GB
178.17.32.0/22IPv41,024GB
178.17.36.0/24IPv4256GB
178.17.37.0/24IPv4256GB
178.17.38.0/23IPv4512GB
178.17.40.0/21IPv42,048GB
178.251.32.0/21IPv42,048GB
185.4.128.0/22IPv41,024GB
185.34.208.0/22IPv41,024GB
185.160.164.0/22IPv41,024GB
185.167.216.0/24IPv4256GB
185.167.228.0/22IPv41,024GB
195.226.201.0/24IPv4256GB
2a00:1c18::/39IPv6—GB
2a00:1c18:200::/40IPv6—GB
2a00:1c18:300::/43IPv6—GB
2a00:1c18:320::/44IPv6—GB
2a00:1c18:330::/46IPv6—GB
2a00:1c18:334::/46IPv6—GB
2a00:1c18:338::/45IPv6—GB
2a00:1c18:340::/42IPv6—GB
2a00:1c18:380::/41IPv6—GB
2a00:1c18:400::/38IPv6—GB
2a00:1c18:800::/37IPv6—GB
2a00:1c18:1000::/36IPv6—GB
2a00:1c18:2000::/35IPv6—GB
2a00:1c18:4000::/34IPv6—GB
2a00:1c18:8000::/33IPv6—GB
2a00:1c19::/32IPv6—GB
2a00:1c1a::/31IPv6—GB
2a00:1c1c::/30IPv6—GB
2a07:45c2::/40IPv6—GB
2a0f:64c0::/29IPv6—GB