asn.dev

Address space

AS7922 COMCAST-7922

Residential ARIN

IPv4 prefixes 3,583 42.06M addresses
IPv6 prefixes 1,980
Most common size /24 IPv4
Flagged 1

Shape

IPv4 prefix sizes

All IPv4
/8
/8: 1
1
/10
/10: 1
1
/11
/11: 1
1
/12
/12: 2
2
/13
/13: 2
2
/14
/14: 14
14
/15
/15: 17
17
/16
/16: 39
39
/17
/17: 49
49
/18
/18: 84
84
/19
/19: 146
146
/20
/20: 235
235
/21
/21: 405
405
/22
/22: 696
696
/23
/23: 895
895
/24
/24: 996
996

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
/22
/22: 2
2
/24
/24: 2
2
/25
/25: 3
3
/26
/26: 16
16
/27
/27: 2
2
/28
/28: 4
4
/29
/29: 3
3
/30
/30: 4
4
/31
/31: 3
3
/32
/32: 12
12
/33
/33: 4
4
/34
/34: 5
5
/35
/35: 7
7
/36
/36: 13
13
/37
/37: 17
17
/38
/38: 12
12
/39
/39: 15
15
/40
/40: 17
17
/41
/41: 12
12
/42
/42: 14
14
/43
/43: 15
15
/44
/44: 28
28
/45
/45: 29
29
/46
/46: 125
125
/47
/47: 488
488
/48
/48: 1,128
1,128

Geography

Where the space lands

CountryNamePrefixes
USUnited States of America5,563

Review

Flagged prefixes

1 of 5,563
PrefixFamilyAddressesCountryFlags
73.0.0.0/8IPv416,777,216USVery large

A flag is an observation, not an accusation. Very large and very specific prefixes are both legitimate in the right context.