AS721

DoD Network Information Center

AS 721 DNIC-ASBLK-00721-00726

Autonomous Systems are networks typically governed by large ISPs that participate in global Internet routing. Each network is assigned a unique identification number known as the AS number or ASN by the Internet Assigned Numbers Authority.

73,076,224 IP addresses
ASN721
NameDNIC-ASBLK-00721-00726
OrganizationDoD Network Information Center
CountryUnited States  
RegistryARIN
IPv4 addresses73,076,224
IPv6 /64 networks233
Prefixes240
Other ASN allocated to DoD Network Information Center
ASN Name IP addresses
367 DNIC-ASBLK-00306-00371 8,818,944
306 DNIC-ASBLK-00306-00371 4,723,712
5972 AS5972 1,730,048
27064 DNIC-ASBLK-27032-27159 1,519,104
637 DNIC-ASBLK-00616-00665 1,037,824
357 DNIC-ASBLK-00306-00371 522,240
5852 DNIC-ASBLK-05800-06055 490,752
647 DNIC-ASBLK-00616-00665 434,432
361 DNIC-ASBLK-00306-00371 394,496
27046 DNIC-ASBLK-27032-27159 318,720
370 DNIC-ASBLK-00306-00371 296,960
5180 DNIC-ASBLK-05120-05376 273,152
5371 AS5371 266,496
5277 AS5277 266,240
335 DNIC-ASBLK-00306-00371 254,720
6039 AS6039 253,440
1600 DNIC-ASBLK-01550-01601 237,568
340 DNIC-ASBLK-00306-00371 221,952
665 DNIC-ASBLK-00616-00665 219,648
331 DNIC-ASBLK-00306-00371 197,888
6035 AS6035 176,640
6041 AS6041 168,960
27142 DNIC-ASBLK-27032-27159 161,280
356 DNIC-ASBLK-00306-00371 160,512
350 DNIC-ASBLK-00306-00371 147,456
369 DNIC-ASBLK-00306-00371 145,408
362 DNIC-ASBLK-00306-00371 142,336
325 DNIC-ASBLK-00306-00371 139,520
336 DNIC-ASBLK-00306-00371 137,472
368 DNIC-ASBLK-00306-00371 134,400
341 DNIC-ASBLK-00306-00371 132,096
1556 DNIC-ASBLK-01550-01601 132,096
1554 DNIC-ASBLK-01550-01601 131,584
351 DNIC-ASBLK-00306-00371 131,584
1580 DNIC-ASBLK-01550-01601 131,584
1563 DNIC-ASBLK-01550-01601 131,328
365 DNIC-ASBLK-00306-00371 131,328
5831 DNIC-ASBLK-05800-06055 131,328
355 DNIC-ASBLK-00306-00371 131,072
343 DNIC-ASBLK-00306-00371 131,072
5307 AS5307 108,032
344 DNIC-ASBLK-00306-00371 101,632
360 DNIC-ASBLK-00306-00371 101,120
6026 AS6026 98,048
5974 AS5974 93,952
5374 AS5374 93,696
337 DNIC-ASBLK-00306-00371 85,760
6042 AS6042 84,480
5939 AS5939 82,432
334 DNIC-ASBLK-00306-00371 79,104
1561 DNIC-ASBLK-01550-01601 72,960
346 DNIC-ASBLK-00306-00371 70,656
317 DNIC-ASBLK-00306-00371 69,632
371 DNIC-ASBLK-00306-00371 69,632
348 DNIC-ASBLK-00306-00371 69,376
321 DNIC-ASBLK-00306-00371 69,120
349 DNIC-ASBLK-00306-00371 68,864
364 DNIC-ASBLK-00306-00371 68,608
345 DNIC-ASBLK-00306-00371 68,608
316 DNIC-ASBLK-00306-00371 68,352
328 DNIC-ASBLK-00306-00371 68,096
319 DNIC-ASBLK-00306-00371 68,096
347 DNIC-ASBLK-00306-00371 67,840
342 DNIC-ASBLK-00306-00371 67,840
329 DNIC-ASBLK-00306-00371 67,584
1559 DNIC-ASBLK-01550-01601 66,816
324 DNIC-ASBLK-00306-00371 66,816
320 DNIC-ASBLK-00306-00371 66,816
352 DNIC-ASBLK-00306-00371 66,560
338 DNIC-ASBLK-00306-00371 66,304
339 DNIC-ASBLK-00306-00371 66,304
1555 DNIC-ASBLK-01550-01601 66,304
327 DNIC-ASBLK-00306-00371 66,048
323 DNIC-ASBLK-00306-00371 66,048
322 DNIC-ASBLK-00306-00371 65,792
5264 AS5264 65,536
307 DNIC-ASBLK-00306-00371 65,536
6009 AS6009 65,536
5376 AS5376 65,536
359 DNIC-ASBLK-00306-00371 65,536
358 DNIC-ASBLK-00306-00371 65,536
353 DNIC-ASBLK-00306-00371 65,536
1566 DNIC-ASBLK-01550-01601 65,536
5839 DNIC-ASBLK-05800-06055 50,688
27138 DNIC-ASBLK-27032-27159 36,096
326 DNIC-ASBLK-00306-00371 35,840
1590 DNIC-ASBLK-01550-01601 34,816
27066 DNIC-ASBLK-27032-27159 34,304
1568 DNIC-ASBLK-01550-01601 33,024
1565 DNIC-ASBLK-01550-01601 32,768
27065 DNIC-ASBLK-27032-27159 29,696
6034 AS6034 23,296
5133 DNIC-ASBLK-05120-05376 18,944
1567 DNIC-ASBLK-01550-01601 18,432
27047 DNIC-ASBLK-27032-27159 17,920
5306 AS5306 16,384
27086 DNIC-ASBLK-27032-27159 15,104
5842 DNIC-ASBLK-05800-06055 13,312
5237 DNIC-ASBLK-05120-05376 11,776
722 DNIC-ASBLK-00721-00726 9,472
27079 DNIC-ASBLK-27032-27159 8,960
27137 DNIC-ASBLK-27032-27159 8,448
1551 DNIC-ASBLK-01550-01601 8,192
627 DNIC-ASBLK-00616-00665 7,168
27087 DNIC-ASBLK-27032-27159 6,656
636 DNIC-ASBLK-00616-00665 6,656
366 DNIC-ASBLK-00306-00371 6,400
27069 DNIC-ASBLK-27032-27159 5,888
5927 DNIC-ASBLK-05800-06055 5,888
27139 DNIC-ASBLK-27032-27159 5,632
5982 AS5982 4,352
634 DNIC-ASBLK-00616-00665 2,560
1585 DNIC-ASBLK-01550-01601 2,560
5182 DNIC-ASBLK-05120-05376 2,304
1562 DNIC-ASBLK-01550-01601 1,280
664 DNIC-ASBLK-00616-00665 1,024
1911 DNIC-ASBLK-01910-01914 1,024
6040 AS6040 1,024
5978 AS5978 1,024
5957 AS5957 1,024
5860 DNIC-ASBLK-05800-06055 512
27149 DNIC-ASBLK-27032-27159 512
619 DNIC-ASBLK-00616-00665 512
5329 AS5329 512
5284 AS5284 512
5958 AS5958 512
6006 AS6006 256
27135 DNIC-ASBLK-27032-27159 256
656 DNIC-ASBLK-00616-00665 256
6002 AS6002 256
1553 DNIC-ASBLK-01550-01601 256
27154 DNIC-ASBLK-27032-27159 256
27038 DNIC-ASBLK-27032-27159 0
27153 DNIC-ASBLK-27032-27159 0
27040 DNIC-ASBLK-27032-27159 0
27155 DNIC-ASBLK-27032-27159 0
27034 DNIC-ASBLK-27032-27159 0
27152 DNIC-ASBLK-27032-27159 0
27033 DNIC-ASBLK-27032-27159 0
6045 DNIC-ASBLK-05800-06055 0
6043 AS6043 0
27156 DNIC-ASBLK-27032-27159 0
27041 DNIC-ASBLK-27032-27159 0
27126 DNIC-ASBLK-27032-27159 0
27132 DNIC-ASBLK-27032-27159 0
27120 DNIC-ASBLK-27032-27159 0
27097 DNIC-ASBLK-27032-27159 0
27096 DNIC-ASBLK-27032-27159 0
27091 DNIC-ASBLK-27032-27159 0
27085 DNIC-ASBLK-27032-27159 0
27080 DNIC-ASBLK-27032-27159 0
27067 DNIC-ASBLK-27032-27159 0
27090 DNIC-ASBLK-27032-27159 0
27059 DNIC-ASBLK-27032-27159 0
27056 DNIC-ASBLK-27032-27159 0
27052 DNIC-ASBLK-27032-27159 0
27051 DNIC-ASBLK-27032-27159 0
27044 DNIC-ASBLK-27032-27159 0
27131 DNIC-ASBLK-27032-27159 0
6037 DNIC-ASBLK-05800-06055 0
308 DNIC-ASBLK-00306-00371 0
1599 DNIC-ASBLK-01550-01601 0
1912 DNIC-ASBLK-01910-01914 0
1913 DNIC-ASBLK-01910-01914 0
3666 DNIC-ASBLK-03664-03667 0
4221 DNIC-ASBLK-04214-04221 0
5132 DNIC-ASBLK-05120-05376 0
5219 DNIC-ASBLK-05120-05376 0
5231 DNIC-ASBLK-05120-05376 0
5265 DNIC-ASBLK-05120-05376 0
1598 DNIC-ASBLK-01550-01601 0
1591 DNIC-ASBLK-01550-01601 0
1586 DNIC-ASBLK-01550-01601 0
309 DNIC-ASBLK-00306-00371 0
310 DNIC-ASBLK-00306-00371 0
311 DNIC-ASBLK-00306-00371 0
312 DNIC-ASBLK-00306-00371 0
313 DNIC-ASBLK-00306-00371 0
332 DNIC-ASBLK-00306-00371 0
616 DNIC-ASBLK-00616-00665 0
724 DNIC-ASBLK-00721-00726 0
1569 DNIC-ASBLK-01550-01601 0
5323 DNIC-ASBLK-05120-05376 0
5341 DNIC-ASBLK-05120-05376 0
5368 DNIC-ASBLK-05120-05376 0
5969 AS5969 0
5976 DNIC-ASBLK-05800-06055 0
5979 DNIC-ASBLK-05800-06055 0
5980 AS5980 0
5994 DNIC-ASBLK-05800-06055 0
6000 DNIC-ASBLK-05800-06055 0
6004 AS6004 0
6012 DNIC-ASBLK-05800-06055 0
6022 DNIC-ASBLK-05800-06055 0
5966 DNIC-ASBLK-05800-06055 0
5963 DNIC-ASBLK-05800-06055 0
5961 DNIC-ASBLK-05800-06055 0
5370 DNIC-ASBLK-05120-05376 0
5800 DNIC-ASBLK-05800-06055 0
5819 DNIC-ASBLK-05800-06055 0
5853 DNIC-ASBLK-05800-06055 0
5864 DNIC-ASBLK-05800-06055 0
5887 DNIC-ASBLK-05800-06055 0
5935 DNIC-ASBLK-05800-06055 0
5953 DNIC-ASBLK-05800-06055 0
5956 DNIC-ASBLK-05800-06055 0
6025 AS6025 0
IPv4 Prefixes for AS721 - showing the first 20 of 238 networks
Network Location Addresses
130.22.0.0/16 DoD Network Information Center   Columbus 65,536
131.16.0.0/16 United States Department of Defense (DoD)   Montgomery 65,536
131.32.0.0/11 United States Department of Defense (DoD)   Montgomery 2,097,152
131.4.0.0/15 United States Department of Defense (DoD)   Montgomery 131,072
131.64.0.0/13 DoD Network Information Center   Whitehall 524,288
131.73.0.0/16 DoD Network Information Center   Columbus 65,536
131.74.0.0/15 DoD Network Information Center   Whitehall 131,072
131.76.0.0/14 DoD Network Information Center   Columbus 262,144
131.78.204.0/24 DoD Network Information Center   Columbus 256
131.78.3.0/24 DoD Network Information Center   Columbus 256
131.80.0.0/14 DoD Network Information Center   Whitehall 262,144
131.86.0.0/15 DoD Network Information Center   Columbus 131,072
131.86.0.0/16 DoD Network Information Center   Columbus 65,536
131.87.0.0/16 DoD Network Information Center   Columbus 65,536
132.0.0.0/10 United States Department of Defense (DoD)   Montgomery 4,194,304
132.128.0.0/12 United States Department of Defense (DoD)   Sierra Vista (Fort Huachuca) 1,048,576
132.80.0.0/12 United States Department of Defense (DoD)   Sierra Vista (Fort Huachuca) 1,048,576
132.96.0.0/11 United States Department of Defense (DoD)   Sierra Vista (Fort Huachuca) 2,097,152
134.135.0.0/16 DoD Network Information Center   Whitehall 65,536
134.233.0.0/16 United States Department of Defense (DoD)   Sierra Vista (Fort Huachuca) 65,536
IPv6 Prefixes for AS721
Network Location /64 Prefixes
2608:120::/32 DoD Network Information Center   Columbus 232
2608:121::/32 DoD Network Information Center   Columbus 232