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AS3464 Alabama Supercomputer Authority

ASC-NET - Alabama Supercomputer Authority · registered in the United States

IPv4 addresses207,616101 prefixes · 0.007% of announced IPv4
Rank in United States#313largest network in US by IPv4 space, of 18,338 · 0.02% of US
Rank worldwide#1,053of 79,396 networks with IPv4
IPv61 x /32 (65,536 x /48)32 prefixes
CountryUnited States18,679 ASNs registered there
Open AS3464 in ASN lookup Look up an IP in this network (129.66.0.1) All networks in United States

IPv4 prefixes

All 101 prefixes, in address order.

  • 129.66.0.0/22
  • 129.66.4.0/23
  • 129.66.6.0/23
  • 129.66.8.0/21
  • 129.66.16.0/20
  • 129.66.32.0/19
  • 129.66.64.0/20
  • 129.66.80.0/21
  • 129.66.88.0/22
  • 129.66.92.0/23
  • 129.66.94.0/23
  • 129.66.96.0/19
  • 129.66.128.0/19
  • 129.66.160.0/19
  • 129.66.192.0/18
  • 157.149.0.0/16
  • 192.31.107.0/24
  • 192.211.32.0/23
  • 192.211.39.0/24
  • 192.211.41.0/24
  • 192.211.42.0/24
  • 192.211.44.0/23
  • 198.49.31.0/24
  • 198.200.158.0/24
  • 198.204.100.0/23
  • 198.204.102.0/23
  • 199.20.16.0/20
  • 199.88.16.0/22
  • 199.88.21.0/24
  • 199.88.22.0/23
  • 199.88.24.0/21
  • 199.248.173.0/24
  • 199.248.174.0/23
  • 199.248.176.0/23
  • 199.248.178.0/24
  • 204.29.64.0/22
  • 204.29.68.0/24
  • 204.29.69.0/24
  • 204.29.70.0/23
  • 204.29.72.0/21
  • 204.29.80.0/21
  • 204.29.88.0/22
  • 204.29.92.0/22
  • 204.29.96.0/22
  • 204.29.105.0/24
  • 204.29.106.0/23
  • 204.29.108.0/22
  • 204.29.112.0/24
  • 204.29.113.0/24
  • 204.29.114.0/23
  • 204.29.116.0/22
  • 204.29.120.0/21
  • 207.157.0.0/19
  • 207.157.32.0/20
  • 207.157.48.0/21
  • 207.157.56.0/24
  • 207.157.57.0/24
  • 207.157.58.0/23
  • 207.157.60.0/24
  • 207.157.61.0/24
  • 207.157.62.0/23
  • 207.157.64.0/24
  • 207.157.65.0/24
  • 207.157.66.0/24
  • 207.157.67.0/24
  • 207.157.68.0/23
  • 207.157.70.0/23
  • 207.157.72.0/23
  • 207.157.76.0/22
  • 207.157.80.0/24
  • 207.157.82.0/23
  • 207.157.84.0/22
  • 207.157.88.0/23
  • 207.157.90.0/24
  • 207.157.91.0/24
  • 207.157.92.0/22
  • 207.157.96.0/22
  • 207.157.100.0/22
  • 207.157.104.0/22
  • 207.157.108.0/23
  • 207.157.110.0/24
  • 207.157.111.0/24
  • 207.157.112.0/20
  • 216.109.0.0/21
  • 216.109.8.0/24
  • 216.109.9.0/24
  • 216.109.10.0/23
  • 216.109.12.0/23
  • 216.109.14.0/23
  • 216.109.16.0/24
  • 216.109.17.0/24
  • 216.109.18.0/23
  • 216.109.20.0/22
  • 216.109.24.0/23
  • 216.109.26.0/23
  • 216.109.28.0/22
  • 216.109.32.0/20
  • 216.109.48.0/21
  • 216.109.56.0/23
  • 216.109.58.0/23
  • 216.109.60.0/22

IPv6 prefixes

All 32 prefixes.

  • 2607:f808::/44
  • 2607:f808:10::/48
  • 2607:f808:11::/48
  • 2607:f808:12::/47
  • 2607:f808:14::/46
  • 2607:f808:18::/45
  • 2607:f808:20::/47
  • 2607:f808:22::/47
  • 2607:f808:24::/46
  • 2607:f808:28::/45
  • 2607:f808:30::/44
  • 2607:f808:40::/46
  • 2607:f808:44::/46
  • 2607:f808:48::/45
  • 2607:f808:50::/44
  • 2607:f808:60::/43
  • 2607:f808:80::/45
  • 2607:f808:88::/45
  • 2607:f808:90::/44
  • 2607:f808:a0::/43
  • 2607:f808:c0::/42
  • 2607:f808:100::/40
  • 2607:f808:200::/39
  • 2607:f808:400::/38
  • 2607:f808:800::/37
  • 2607:f808:1000::/36
  • 2607:f808:2000::/35
  • 2607:f808:4000::/37
  • 2607:f808:4800::/37
  • 2607:f808:5000::/36
  • 2607:f808:6000::/35
  • 2607:f808:8000::/33

Similar-sized networks in United States

ASNNameIPv4 addresses
AS14#310 COLUMBIA-GW - Columbia University208,896
AS7896#311 NU-AS - The Board of Regents of the University of Nebraska208,640
AS7270#312 NET2PHONE - IDT Corporation208,128
AS398823#314 PEG-LA - PEG TECH INC207,104
AS1742#315 HARVARD-UNIV - Harvard University203,520
AS36850#316 UNC-CH - University of North Carolina at Chapel Hill203,264

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources