asn.dev

Address space

AS12271 TWC-12271-NYC

Residential ARIN

IPv4 prefixes 170 2.86M addresses
IPv6 prefixes 25
Most common size /19 IPv4
Flagged 0

Shape

IPv4 prefix sizes

All IPv4
/15
/15: 2
2
/16
/16: 19
19
/17
/17: 20
20
/18
/18: 20
20
/19
/19: 30
30
/20
/20: 14
14
/21
/21: 19
19
/22
/22: 15
15
/23
/23: 13
13
/24
/24: 18
18

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
/28
/28: 1
1
/32
/32: 2
2
/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: 2
2
/42
/42: 2
2
/43
/43: 3
3
/44
/44: 2
2
/45
/45: 1
1
/46
/46: 1
1
/47
/47: 1
1
/48
/48: 1
1

Geography

Where the space lands

CountryNamePrefixes
USUnited States of America195