asn.dev

Address space

AS25234 ACTIVE24-AS www.active24.cz

IPv4 prefixes 7 7.17K addresses
IPv6 prefixes 18
Most common size /21 IPv4
Flagged 0

Shape

Prefix sizes

IPv4
/21
/21: 2
2
/22
/22: 2
2
/23
/23: 1
1
/24
/24: 2
2

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
/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: 1
1
/41
/41: 1
1
/42
/42: 1
1
/43
/43: 1
1
/44
/44: 1
1
/45
/45: 1
1
/46
/46: 1
1
/47
/47: 1
1
/48
/48: 2
2

Geography

Where the space lands

CountryNamePrefixes
CZCzechia25

Inventory

All prefixes

25 total
PrefixFamilyAddressesCountryFlags
31.15.8.0/21IPv42,048CZ
45.10.97.0/24IPv4256CZ
81.95.96.0/21IPv42,048CZ
81.95.104.0/22IPv41,024CZ
81.95.110.0/23IPv4512CZ
185.12.196.0/22IPv41,024CZ
185.71.159.0/24IPv4256CZ
2a02:250:3::/48IPv6—CZ
2a02:4a8::/44IPv6—CZ
2a02:4a8:11::/48IPv6—CZ
2a02:4a8:12::/47IPv6—CZ
2a02:4a8:14::/46IPv6—CZ
2a02:4a8:18::/45IPv6—CZ
2a02:4a8:20::/43IPv6—CZ
2a02:4a8:40::/42IPv6—CZ
2a02:4a8:80::/41IPv6—CZ
2a02:4a8:100::/40IPv6—CZ
2a02:4a8:200::/39IPv6—CZ
2a02:4a8:400::/38IPv6—CZ
2a02:4a8:800::/37IPv6—CZ
2a02:4a8:1000::/36IPv6—CZ
2a02:4a8:2000::/35IPv6—CZ
2a02:4a8:4000::/34IPv6—CZ
2a02:4a8:8000::/33IPv6—CZ
2a10:bbc0::/32IPv6—CZ