asn.dev

Address space

AS3561 CENTURYLINK-LEGACY-SAVVIS

Hosting ARIN

IPv4 prefixes 1,397 6.39M addresses
IPv6 prefixes 1
Most common size /24 IPv4
Flagged 0

Shape

IPv4 prefix sizes

All IPv4
/15
/15: 4
4
/16
/16: 16
16
/17
/17: 36
36
/18
/18: 59
59
/19
/19: 129
129
/20
/20: 198
198
/21
/21: 180
180
/22
/22: 227
227
/23
/23: 224
224
/24
/24: 324
324

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

IPv6 prefix sizes

All IPv6
/46
/46: 1
1

Geography

Where the space lands

CountryNamePrefixes
USUnited States of America1,398