asn.dev

Address space

AS7018 ATT-INTERNET4

Residential DROP-listed space ARIN

IPv4 prefixes 7,667 90.00M addresses
IPv6 prefixes 281
Most common size /23 IPv4
Flagged 0

Shape

IPv4 prefix sizes

All IPv4
/11
/11: 3
3
/12
/12: 13
13
/13
/13: 20
20
/14
/14: 40
40
/15
/15: 88
88
/16
/16: 151
151
/17
/17: 216
216
/18
/18: 423
423
/19
/19: 625
625
/20
/20: 923
923
/21
/21: 1,170
1,170
/22
/22: 1,301
1,301
/23
/23: 1,347
1,347
/24
/24: 1,347
1,347

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
/25
/25: 1
1
/26
/26: 1
1
/27
/27: 1
1
/28
/28: 2
2
/29
/29: 8
8
/30
/30: 2
2
/31
/31: 6
6
/32
/32: 9
9
/33
/33: 3
3
/34
/34: 3
3
/35
/35: 3
3
/36
/36: 8
8
/37
/37: 10
10
/38
/38: 16
16
/39
/39: 21
21
/40
/40: 28
28
/41
/41: 30
30
/42
/42: 36
36
/43
/43: 18
18
/44
/44: 26
26
/45
/45: 11
11
/46
/46: 10
10
/47
/47: 7
7
/48
/48: 20
20

Geography

Where the space lands

CountryNamePrefixes
USUnited States of America7,948