asn.dev

Address space

AS109 CISCOSYSTEMS

IPv4 prefixes 78 1.14M addresses
IPv6 prefixes 54
Most common size /22 IPv4
Flagged 0

Shape

Prefix sizes

IPv4
/14
/14: 1
1
/15
/15: 1
1
/16
/16: 5
5
/17
/17: 5
5
/18
/18: 7
7
/19
/19: 7
7
/20
/20: 11
11
/21
/21: 9
9
/22
/22: 13
13
/23
/23: 12
12
/24
/24: 7
7

How this network carves its IPv4 space. 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

Prefix sizes

IPv6
/34
/34: 1
1
/35
/35: 3
3
/36
/36: 3
3
/37
/37: 3
3
/38
/38: 2
2
/39
/39: 4
4
/40
/40: 4
4
/41
/41: 4
4
/42
/42: 4
4
/43
/43: 3
3
/44
/44: 4
4
/45
/45: 7
7
/46
/46: 8
8
/47
/47: 4
4

Geography

Where the space lands

CountryNamePrefixes
USUnited States of America132

Inventory

All prefixes

132 total
PrefixFamilyAddressesCountryFlags
12.5.186.0/23IPv4512US
12.19.88.0/21IPv42,048US
12.159.148.0/22IPv41,024US
64.100.0.0/15IPv4131,072US
64.102.0.0/17IPv432,768US
64.102.128.0/18IPv416,384US
64.102.192.0/19IPv48,192US
64.102.224.0/20IPv44,096US
64.102.240.0/21IPv42,048US
64.102.248.0/23IPv4512US
64.102.250.0/23IPv4512US
64.102.252.0/22IPv41,024US
64.103.0.0/16IPv465,536US
64.104.0.0/18IPv416,384US
64.104.64.0/19IPv48,192US
64.104.96.0/20IPv44,096US
64.104.112.0/21IPv42,048US
64.104.120.0/22IPv41,024US
64.104.124.0/24IPv4256US
64.104.125.0/24IPv4256US
64.104.126.0/23IPv4512US
64.104.128.0/17IPv432,768US
66.187.208.0/20IPv44,096US
72.163.0.0/22IPv41,024US
72.163.4.0/24IPv4256US
72.163.5.0/24IPv4256US
72.163.6.0/23IPv4512US
72.163.8.0/21IPv42,048US
72.163.16.0/20IPv44,096US
72.163.32.0/19IPv48,192US
72.163.64.0/18IPv416,384US
72.163.128.0/18IPv416,384US
72.163.192.0/19IPv48,192US
72.163.224.0/20IPv44,096US
72.163.240.0/23IPv4512US
72.163.242.0/23IPv4512US
72.163.244.0/22IPv41,024US
72.163.248.0/22IPv41,024US
72.163.252.0/22IPv41,024US
103.60.32.0/22IPv41,024US
111.223.8.0/22IPv41,024US
128.107.0.0/20IPv44,096US
128.107.16.0/20IPv44,096US
128.107.32.0/20IPv44,096US
128.107.48.0/21IPv42,048US
128.107.56.0/21IPv42,048US
128.107.64.0/18IPv416,384US
128.107.128.0/17IPv432,768US
144.254.0.0/16IPv465,536US
161.44.0.0/16IPv465,536US
171.68.0.0/14IPv4262,144US
173.36.0.0/16IPv465,536US
173.37.0.0/17IPv432,768US
173.37.128.0/20IPv44,096US
173.37.144.0/23IPv4512US
173.37.146.0/23IPv4512US
173.37.148.0/22IPv41,024US
173.37.152.0/21IPv42,048US
173.37.160.0/19IPv48,192US
173.37.192.0/18IPv416,384US
173.38.0.0/16IPv465,536US
173.39.0.0/17IPv432,768US
173.39.128.0/18IPv416,384US
173.39.192.0/21IPv42,048US
173.39.200.0/23IPv4512US
173.39.202.0/23IPv4512US
173.39.204.0/22IPv41,024US
173.39.208.0/20IPv44,096US
192.118.76.0/22IPv41,024US
192.133.192.0/19IPv48,192US
192.133.224.0/20IPv44,096US
192.133.240.0/22IPv41,024US
192.135.250.0/24IPv4256US
198.133.219.0/24IPv4256US
198.135.0.0/21IPv42,048US
204.69.198.0/23IPv4512US
204.69.200.0/24IPv4256US
216.128.32.0/19IPv48,192US
2001:420::/41IPv6—US
2001:420:80::/44IPv6—US
2001:420:90::/46IPv6—US
2001:420:94::/46IPv6—US
2001:420:98::/45IPv6—US
2001:420:a0::/43IPv6—US
2001:420:c0::/42IPv6—US
2001:420:100::/40IPv6—US
2001:420:200::/39IPv6—US
2001:420:400::/38IPv6—US
2001:420:800::/37IPv6—US
2001:420:1000::/36IPv6—US
2001:420:2000::/35IPv6—US
2001:420:4000::/40IPv6—US
2001:420:4100::/40IPv6—US
2001:420:4200::/39IPv6—US
2001:420:4400::/41IPv6—US
2001:420:4480::/45IPv6—US
2001:420:4488::/45IPv6—US
2001:420:4490::/44IPv6—US
2001:420:44a0::/43IPv6—US
2001:420:44c0::/42IPv6—US
2001:420:4500::/40IPv6—US
2001:420:4600::/39IPv6—US
2001:420:4800::/37IPv6—US
2001:420:5000::/36IPv6—US
2001:420:6000::/35IPv6—US
2001:420:8000::/34IPv6—US
2001:420:c000::/41IPv6—US
2001:420:c080::/42IPv6—US
2001:420:c0c0::/43IPv6—US
2001:420:c0e0::/44IPv6—US
2001:420:c0f0::/45IPv6—US
2001:420:c0f8::/46IPv6—US
2001:420:c0fc::/46IPv6—US
2001:420:c100::/44IPv6—US
2001:420:c110::/45IPv6—US
2001:420:c118::/45IPv6—US
2001:420:c120::/47IPv6—US
2001:420:c122::/47IPv6—US
2001:420:c124::/46IPv6—US
2001:420:c128::/47IPv6—US
2001:420:c12a::/47IPv6—US
2001:420:c12c::/46IPv6—US
2001:420:c130::/45IPv6—US
2001:420:c138::/46IPv6—US
2001:420:c13c::/46IPv6—US
2001:420:c140::/42IPv6—US
2001:420:c180::/41IPv6—US
2001:420:c200::/39IPv6—US
2001:420:c400::/38IPv6—US
2001:420:c800::/37IPv6—US
2001:420:d000::/36IPv6—US
2001:420:e000::/35IPv6—US