asn.dev

Address space

AS16509 AMAZON-02

Hosting DROP-listed space ARIN Enterprise

IPv4 prefixes 7,976 157M addresses
IPv6 prefixes 7,989
Most common size /24 IPv4
Flagged 16

Shape

IPv4 prefix sizes

All IPv4
/11
/11: 6
6
/12
/12: 23
23
/13
/13: 38
38
/14
/14: 82
82
/15
/15: 194
194
/16
/16: 566
566
/17
/17: 167
167
/18
/18: 218
218
/19
/19: 252
252
/20
/20: 357
357
/21
/21: 711
711
/22
/22: 1,174
1,174
/23
/23: 1,489
1,489
/24
/24: 2,683
2,683
/25
/25: 2
2
/26
/26: 2
2
/27
/27: 2
2
/28
/28: 2
2
/29
/29: 2
2
/30
/30: 2
2
/31
/31: 2
2
/32
/32: 2
2

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: 3
3
/27
/27: 8
8
/28
/28: 3
3
/29
/29: 18
18
/30
/30: 24
24
/31
/31: 25
25
/32
/32: 48
48
/33
/33: 69
69
/34
/34: 135
135
/35
/35: 192
192
/36
/36: 423
423
/37
/37: 342
342
/38
/38: 396
396
/39
/39: 394
394
/40
/40: 552
552
/41
/41: 106
106
/42
/42: 248
248
/43
/43: 630
630
/44
/44: 875
875
/45
/45: 614
614
/46
/46: 957
957
/47
/47: 648
648
/48
/48: 1,279
1,279

Geography

Where the space lands

CountryNamePrefixes
USUnited States of America15,965

Review

Flagged prefixes

16 of 15,965
PrefixFamilyAddressesCountryFlags
18.166.236.0/25IPv4128USToo specific
18.166.236.128/26IPv464USToo specific
18.166.236.192/28IPv416USToo specific
18.166.236.208/29IPv48USToo specific
18.166.236.216/31IPv42USToo specific
18.166.236.218/32IPv41USToo specific
18.166.236.220/30IPv44USToo specific
18.166.236.224/27IPv432USToo specific
83.162.202.0/25IPv4128USToo specific
83.162.202.128/27IPv432USToo specific
83.162.202.160/28IPv416USToo specific
83.162.202.176/30IPv44USToo specific
83.162.202.180/31IPv42USToo specific
83.162.202.183/32IPv41USToo specific
83.162.202.184/29IPv48USToo specific
83.162.202.192/26IPv464USToo specific

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