asn.dev

Address space

AS3527 NIH-NET

IPv4 prefixes 63 325K addresses
IPv6 prefixes 6
Most common size /20 IPv4
Flagged 0

Shape

Prefix sizes

IPv4
/16
/16: 2
2
/18
/18: 3
3
/19
/19: 6
6
/20
/20: 13
13
/21
/21: 11
11
/22
/22: 13
13
/23
/23: 9
9
/24
/24: 6
6

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
/44
/44: 1
1
/46
/46: 2
2
/47
/47: 2
2
/48
/48: 1
1

Geography

Where the space lands

CountryNamePrefixes
USUnited States of America69

Inventory

All prefixes

69 total
PrefixFamilyAddressesCountryFlags
128.231.0.0/22IPv41,024US
128.231.4.0/22IPv41,024US
128.231.8.0/21IPv42,048US
128.231.16.0/20IPv44,096US
128.231.32.0/19IPv48,192US
128.231.64.0/18IPv416,384US
128.231.128.0/18IPv416,384US
128.231.192.0/19IPv48,192US
128.231.224.0/20IPv44,096US
128.231.240.0/22IPv41,024US
128.231.244.0/23IPv4512US
128.231.246.0/23IPv4512US
128.231.248.0/21IPv42,048US
137.187.0.0/16IPv465,536US
156.40.0.0/19IPv48,192US
156.40.32.0/20IPv44,096US
156.40.48.0/22IPv41,024US
156.40.52.0/24IPv4256US
156.40.54.0/23IPv4512US
156.40.56.0/21IPv42,048US
156.40.64.0/20IPv44,096US
156.40.80.0/21IPv42,048US
156.40.88.0/22IPv41,024US
156.40.92.0/24IPv4256US
156.40.96.0/23IPv4512US
156.40.100.0/22IPv41,024US
156.40.104.0/21IPv42,048US
156.40.112.0/20IPv44,096US
156.40.128.0/18IPv416,384US
156.40.192.0/22IPv41,024US
156.40.196.0/24IPv4256US
156.40.198.0/23IPv4512US
156.40.200.0/21IPv42,048US
156.40.208.0/20IPv44,096US
156.40.224.0/20IPv44,096US
156.40.240.0/22IPv41,024US
156.40.244.0/23IPv4512US
156.40.247.0/24IPv4256US
156.40.248.0/21IPv42,048US
157.98.0.0/16IPv465,536US
162.99.224.0/19IPv48,192US
165.112.96.0/20IPv44,096US
165.112.112.0/21IPv42,048US
165.112.16.0/20IPv44,096US
165.112.36.0/22IPv41,024US
165.112.40.0/21IPv42,048US
165.112.48.0/20IPv44,096US
165.112.64.0/19IPv48,192US
165.112.120.0/22IPv41,024US
165.112.126.0/24IPv4256US
165.112.128.0/21IPv42,048US
165.112.144.0/20IPv44,096US
165.112.160.0/19IPv48,192US
165.112.192.0/23IPv4512US
165.112.196.0/22IPv41,024US
165.112.204.0/22IPv41,024US
165.112.208.0/20IPv44,096US
165.112.224.0/20IPv44,096US
165.112.240.0/21IPv42,048US
165.112.248.0/22IPv41,024US
165.112.254.0/23IPv4512US
192.231.145.0/24IPv4256US
192.231.146.0/23IPv4512US
2607:f220:400::/44IPv6—US
2607:f220:410::/48IPv6—US
2607:f220:412::/47IPv6—US
2607:f220:414::/46IPv6—US
2607:f220:418::/46IPv6—US
2607:f220:41c::/47IPv6—US