asn.dev

Address space

AS209 CENTURYLINK-US-LEGACY-QWEST

Residential ARIN NSP

IPv4 prefixes 4,861 15.72M addresses
IPv6 prefixes 92
Most common size /24 IPv4
Flagged 0

Shape

IPv4 prefix sizes

All IPv4
/14
/14: 2
2
/15
/15: 17
17
/16
/16: 35
35
/17
/17: 37
37
/18
/18: 103
103
/19
/19: 288
288
/20
/20: 524
524
/21
/21: 729
729
/22
/22: 930
930
/23
/23: 1,035
1,035
/24
/24: 1,161
1,161

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
/24
/24: 1
1
/32
/32: 1
1
/33
/33: 3
3
/34
/34: 1
1
/35
/35: 1
1
/36
/36: 6
6
/37
/37: 9
9
/38
/38: 11
11
/39
/39: 15
15
/40
/40: 5
5
/41
/41: 5
5
/42
/42: 5
5
/43
/43: 5
5
/44
/44: 5
5
/45
/45: 5
5
/46
/46: 3
3
/47
/47: 6
6
/48
/48: 5
5

Geography

Where the space lands

CountryNamePrefixes
USUnited States of America4,953