asn.dev

Address space

AS33491 COMCAST-33491

Unclassified ARIN Cable/DSL/ISP

IPv4 prefixes 324 3.14M addresses
IPv6 prefixes 200
Most common size /24 IPv4
Flagged 0

Shape

IPv4 prefix sizes

All IPv4
/14
/14: 1
1
/15
/15: 2
2
/16
/16: 15
15
/17
/17: 20
20
/18
/18: 36
36
/19
/19: 21
21
/20
/20: 24
24
/21
/21: 15
15
/22
/22: 31
31
/23
/23: 63
63
/24
/24: 96
96

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
/26
/26: 4
4
/32
/32: 4
4
/44
/44: 3
3
/46
/46: 1
1
/47
/47: 16
16
/48
/48: 172
172

Geography

Where the space lands

CountryNamePrefixes
USUnited States of America524