asn.dev

Address space

AS33490 COMCAST-33490

Unclassified ARIN Cable/DSL/ISP

IPv4 prefixes 130 853K addresses
IPv6 prefixes 61
Most common size /24 IPv4
Flagged 0

Shape

IPv4 prefix sizes

All IPv4
/16
/16: 2
2
/17
/17: 11
11
/18
/18: 5
5
/19
/19: 20
20
/20
/20: 19
19
/21
/21: 5
5
/22
/22: 7
7
/23
/23: 19
19
/24
/24: 42
42

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: 2
2
/32
/32: 2
2
/44
/44: 1
1
/47
/47: 9
9
/48
/48: 47
47

Geography

Where the space lands

CountryNamePrefixes
USUnited States of America191