asn.dev

Address space

AS81 NCREN

IPv4 prefixes 196 2.02M addresses
IPv6 prefixes 66
Most common size /24 IPv4
Flagged 0

Shape

Prefix sizes

IPv4
/14
/14: 1
1
/15
/15: 2
2
/16
/16: 9
9
/17
/17: 9
9
/18
/18: 16
16
/19
/19: 20
20
/20
/20: 21
21
/21
/21: 25
25
/22
/22: 27
27
/23
/23: 25
25
/24
/24: 41
41

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
/29
/29: 1
1
/31
/31: 2
2
/32
/32: 2
2
/33
/33: 2
2
/34
/34: 4
4
/35
/35: 4
4
/36
/36: 4
4
/37
/37: 4
4
/38
/38: 4
4
/39
/39: 4
4
/40
/40: 6
6
/41
/41: 4
4
/42
/42: 4
4
/43
/43: 4
4
/44
/44: 4
4
/45
/45: 4
4
/46
/46: 3
3
/47
/47: 3
3
/48
/48: 3
3

Geography

Where the space lands

CountryNamePrefixes
USUnited States of America262

Inventory

All prefixes

262 total
PrefixFamilyAddressesCountryFlags
128.109.0.0/16IPv465,536US
152.4.0.0/16IPv465,536US
152.6.0.0/16IPv465,536US
152.8.0.0/14IPv4262,144US
152.12.0.0/16IPv465,536US
152.18.0.0/16IPv465,536US
152.20.0.0/15IPv4131,072US
152.22.2.0/23IPv4512US
152.22.4.0/22IPv41,024US
152.22.8.0/21IPv42,048US
152.22.16.0/20IPv44,096US
152.22.32.0/20IPv44,096US
152.22.48.0/21IPv42,048US
152.22.56.0/21IPv42,048US
152.22.64.0/20IPv44,096US
152.22.80.0/21IPv42,048US
152.22.88.0/21IPv42,048US
152.22.96.0/19IPv48,192US
152.22.128.0/18IPv416,384US
152.22.192.0/19IPv48,192US
152.26.0.0/20IPv44,096US
152.26.16.0/24IPv4256US
152.26.17.0/24IPv4256US
152.26.18.0/23IPv4512US
152.26.20.0/22IPv41,024US
152.26.24.0/22IPv41,024US
152.26.28.0/23IPv4512US
152.26.30.0/24IPv4256US
152.26.32.0/21IPv42,048US
152.26.40.0/22IPv41,024US
152.26.44.0/24IPv4256US
152.26.45.0/24IPv4256US
152.26.46.0/23IPv4512US
152.26.48.0/22IPv41,024US
152.26.52.0/23IPv4512US
152.26.54.0/24IPv4256US
152.26.56.0/22IPv41,024US
152.26.60.0/24IPv4256US
152.26.61.0/24IPv4256US
152.26.62.0/23IPv4512US
152.26.64.0/22IPv41,024US
152.26.68.0/23IPv4512US
152.26.70.0/23IPv4512US
152.26.72.0/21IPv42,048US
152.26.80.0/21IPv42,048US
152.26.92.0/22IPv41,024US
152.26.96.0/19IPv48,192US
152.26.128.0/17IPv432,768US
152.27.0.0/21IPv42,048US
152.27.8.0/22IPv41,024US
152.27.12.0/24IPv4256US
152.27.13.0/24IPv4256US
152.27.14.0/23IPv4512US
152.27.16.0/20IPv44,096US
152.27.32.0/19IPv48,192US
152.27.64.0/21IPv42,048US
152.27.72.0/23IPv4512US
152.27.75.0/24IPv4256US
152.27.76.0/22IPv41,024US
152.27.80.0/20IPv44,096US
152.27.96.0/19IPv48,192US
152.27.128.0/17IPv432,768US
152.28.0.0/23IPv4512US
152.28.2.0/23IPv4512US
152.28.4.0/22IPv41,024US
152.28.8.0/21IPv42,048US
152.28.16.0/20IPv44,096US
152.28.32.0/19IPv48,192US
152.28.64.0/18IPv416,384US
152.28.128.0/17IPv432,768US
152.29.0.0/16IPv465,536US
152.30.0.0/21IPv42,048US
152.30.8.0/23IPv4512US
152.30.10.0/24IPv4256US
152.30.11.0/24IPv4256US
152.30.12.0/22IPv41,024US
152.30.16.0/20IPv44,096US
152.30.32.0/19IPv48,192US
152.30.64.0/20IPv44,096US
152.30.80.0/21IPv42,048US
152.30.88.0/22IPv41,024US
152.30.92.0/24IPv4256US
152.30.93.0/24IPv4256US
152.30.94.0/23IPv4512US
152.30.96.0/19IPv48,192US
152.30.128.0/17IPv432,768US
152.32.0.0/18IPv416,384US
152.35.0.0/16IPv465,536US
152.38.0.0/18IPv416,384US
152.38.64.0/19IPv48,192US
152.38.160.0/19IPv48,192US
152.38.192.0/18IPv416,384US
152.40.64.0/18IPv416,384US
152.40.128.0/17IPv432,768US
152.42.64.0/18IPv416,384US
152.45.0.0/20IPv44,096US
152.45.16.0/22IPv41,024US
152.45.20.0/24IPv4256US
152.45.21.0/24IPv4256US
152.45.22.0/23IPv4512US
152.45.24.0/21IPv42,048US
152.45.32.0/19IPv48,192US
152.45.64.0/18IPv416,384US
152.45.128.0/17IPv432,768US
152.46.0.0/21IPv42,048US
152.46.8.0/23IPv4512US
152.46.10.0/23IPv4512US
152.46.12.0/22IPv41,024US
152.46.16.0/20IPv44,096US
152.46.32.0/21IPv42,048US
152.46.40.0/21IPv42,048US
152.46.48.0/20IPv44,096US
152.46.64.0/18IPv416,384US
152.46.128.0/17IPv432,768US
152.47.0.0/16IPv465,536US
152.48.0.0/15IPv4131,072US
152.54.0.0/16IPv465,536US
152.60.0.0/22IPv41,024US
152.60.4.0/24IPv4256US
152.60.5.0/24IPv4256US
152.60.6.0/23IPv4512US
152.60.8.0/21IPv42,048US
152.60.16.0/20IPv44,096US
152.60.32.0/19IPv48,192US
152.60.64.0/18IPv416,384US
152.60.128.0/17IPv432,768US
185.83.159.0/24IPv4256US
192.101.21.0/24IPv4256US
192.101.22.0/24IPv4256US
192.101.23.0/24IPv4256US
192.101.24.0/24IPv4256US
192.137.210.0/24IPv4256US
192.154.33.0/24IPv4256US
192.154.43.0/24IPv4256US
192.154.48.0/24IPv4256US
192.154.55.0/24IPv4256US
192.154.58.0/24IPv4256US
192.154.60.0/23IPv4512US
192.154.66.0/24IPv4256US
192.154.76.0/23IPv4512US
192.154.95.0/24IPv4256US
192.189.244.0/24IPv4256US
198.85.0.0/18IPv416,384US
198.85.64.0/19IPv48,192US
198.85.96.0/20IPv44,096US
198.85.112.0/22IPv41,024US
198.85.116.0/24IPv4256US
198.85.118.0/23IPv4512US
198.85.120.0/21IPv42,048US
198.85.128.0/18IPv416,384US
198.85.192.0/20IPv44,096US
198.85.208.0/22IPv41,024US
198.85.213.0/24IPv4256US
198.85.214.0/23IPv4512US
198.85.216.0/22IPv41,024US
198.85.221.0/24IPv4256US
198.85.222.0/24IPv4256US
198.85.224.0/22IPv41,024US
198.85.229.0/24IPv4256US
198.85.232.0/21IPv42,048US
198.85.240.0/20IPv44,096US
198.86.0.0/20IPv44,096US
198.86.16.0/21IPv42,048US
198.86.24.0/22IPv41,024US
198.86.28.0/24IPv4256US
198.86.30.0/23IPv4512US
198.86.32.0/19IPv48,192US
198.86.64.0/18IPv416,384US
198.86.128.0/18IPv416,384US
198.86.192.0/19IPv48,192US
198.86.224.0/20IPv44,096US
198.86.240.0/21IPv42,048US
198.86.248.0/21IPv42,048US
204.84.0.0/22IPv41,024US
204.84.12.0/22IPv41,024US
204.84.16.0/20IPv44,096US
204.84.32.0/19IPv48,192US
204.84.64.0/23IPv4512US
204.84.67.0/24IPv4256US
204.84.68.0/22IPv41,024US
204.84.72.0/21IPv42,048US
204.84.80.0/20IPv44,096US
204.84.96.0/19IPv48,192US
204.84.128.0/18IPv416,384US
204.84.192.0/19IPv48,192US
204.84.224.0/21IPv42,048US
204.84.232.0/22IPv41,024US
204.84.236.0/23IPv4512US
204.84.240.0/22IPv41,024US
204.84.248.0/22IPv41,024US
204.85.0.0/17IPv432,768US
204.85.128.0/19IPv48,192US
204.85.160.0/20IPv44,096US
204.85.192.0/18IPv416,384US
206.107.110.0/24IPv4256US
206.211.64.0/19IPv48,192US
2600:2700::/32IPv6—US
2600:2701::/34IPv6—US
2600:2701:4008::/45IPv6—US
2600:2701:4010::/44IPv6—US
2600:2701:4020::/43IPv6—US
2600:2701:4040::/42IPv6—US
2600:2701:4080::/41IPv6—US
2600:2701:4100::/40IPv6—US
2600:2701:4200::/39IPv6—US
2600:2701:4400::/38IPv6—US
2600:2701:4800::/37IPv6—US
2600:2701:5000::/36IPv6—US
2600:2701:6000::/35IPv6—US
2600:2701:8000::/33IPv6—US
2600:2702::/31IPv6—US
2600:2704::/40IPv6—US
2600:2704:101::/48IPv6—US
2600:2704:102::/47IPv6—US
2600:2704:104::/46IPv6—US
2600:2704:108::/45IPv6—US
2600:2704:110::/44IPv6—US
2600:2704:120::/43IPv6—US
2600:2704:140::/42IPv6—US
2600:2704:180::/41IPv6—US
2600:2704:200::/39IPv6—US
2600:2704:400::/38IPv6—US
2600:2704:800::/37IPv6—US
2600:2704:1000::/36IPv6—US
2600:2704:2000::/35IPv6—US
2600:2704:4000::/34IPv6—US
2600:2704:8000::/33IPv6—US
2600:2705::/32IPv6—US
2600:2706::/31IPv6—US
2600:2708::/29IPv6—US
2602:f64d::/40IPv6—US
2602:f6b8::/40IPv6—US
2610:28::/35IPv6—US
2610:28:2000::/36IPv6—US
2610:28:3000::/41IPv6—US
2610:28:3080::/44IPv6—US
2610:28:3091::/48IPv6—US
2610:28:3092::/47IPv6—US
2610:28:3094::/46IPv6—US
2610:28:3098::/45IPv6—US
2610:28:30a0::/43IPv6—US
2610:28:30c0::/42IPv6—US
2610:28:3100::/40IPv6—US
2610:28:3200::/39IPv6—US
2610:28:3400::/38IPv6—US
2610:28:3800::/37IPv6—US
2610:28:4000::/34IPv6—US
2610:28:8000::/34IPv6—US
2610:28:c000::/35IPv6—US
2610:28:e000::/36IPv6—US
2610:28:f000::/43IPv6—US
2610:28:f021::/48IPv6—US
2610:28:f022::/47IPv6—US
2610:28:f024::/46IPv6—US
2610:28:f028::/45IPv6—US
2610:28:f030::/44IPv6—US
2610:28:f040::/42IPv6—US
2610:28:f080::/41IPv6—US
2610:28:f100::/40IPv6—US
2610:28:f200::/39IPv6—US
2610:28:f400::/38IPv6—US
2610:28:f800::/37IPv6—US