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.

75,054,336 IP addresses
ASN721
NameDNIC-ASBLK-00721-00726
OrganizationDoD Network Information Center
CountryUnited States  
RegistryARIN
IPv4 addresses75,054,336
IPv6 /64 networks232
Prefixes282
Other ASN allocated to DoD Network Information Center
ASN Name IP addresses
306 DNIC-ASBLK-00306-00371 5,144,064
668 DNIC-AS-00668 2,942,720
5972 DNIC-ASBLK-05800-06055 1,924,096
27064 DNIC-ASBLK-27032-27159 1,735,168
637 DNIC-ASBLK-00616-00665 766,976
367 DNIC-ASBLK-00306-00371 596,992
647 DNIC-ASBLK-00616-00665 466,432
357 DNIC-ASBLK-00306-00371 454,656
361 DNIC-ASBLK-00306-00371 393,728
27046 DNIC-ASBLK-27032-27159 328,192
6039 DNIC-ASBLK-05800-06055 300,288
326 DNIC-ASBLK-00306-00371 294,912
5180 DNIC-ASBLK-05120-05376 273,152
1600 DNIC-ASBLK-01550-01601 264,192
665 DNIC-ASBLK-00616-00665 227,840
340 DNIC-ASBLK-00306-00371 221,440
1585 DNIC-ASBLK-01550-01601 214,272
138 DNIC-AS-00138 204,288
6035 DNIC-ASBLK-05800-06055 179,200
6041 DNIC-ASBLK-05800-06055 163,584
362 DNIC-ASBLK-00306-00371 159,744
356 DNIC-ASBLK-00306-00371 157,696
27066 DNIC-ASBLK-27032-27159 135,168
1580 DNIC-ASBLK-01550-01601 133,376
1778 DNIC-AS-01778 132,864
347 DNIC-ASBLK-00306-00371 132,608
331 DNIC-ASBLK-00306-00371 132,608
1556 DNIC-ASBLK-01550-01601 132,096
5831 DNIC-ASBLK-05800-06055 131,328
1563 DNIC-ASBLK-01550-01601 131,328
341 DNIC-ASBLK-00306-00371 131,328
351 DNIC-ASBLK-00306-00371 131,072
365 DNIC-ASBLK-00306-00371 131,072
27065 DNIC-ASBLK-27032-27159 102,400
5800 DNIC-ASBLK-05800-06055 99,840
5307 DNIC-ASBLK-05120-05376 99,584
724 DNIC-ASBLK-00721-00726 99,072
27086 DNIC-ASBLK-27032-27159 97,792
300 DNIC-AS-00300 96,512
335 DNIC-ASBLK-00306-00371 94,976
140 DNIC-AS-00140 88,832
337 DNIC-ASBLK-00306-00371 87,552
27142 DNIC-ASBLK-27032-27159 86,528
360 DNIC-ASBLK-00306-00371 82,688
5939 DNIC-ASBLK-05800-06055 82,432
320 DNIC-ASBLK-00306-00371 82,176
370 DNIC-ASBLK-00306-00371 81,152
6026 DNIC-ASBLK-05800-06055 80,640
334 DNIC-ASBLK-00306-00371 78,848
5974 DNIC-ASBLK-05800-06055 76,800
368 DNIC-ASBLK-00306-00371 75,520
355 DNIC-ASBLK-00306-00371 75,264
345 DNIC-ASBLK-00306-00371 75,264
5961 DNIC-ASBLK-05800-06055 74,752
6042 DNIC-ASBLK-05800-06055 73,472
369 DNIC-ASBLK-00306-00371 73,216
348 DNIC-ASBLK-00306-00371 72,704
316 DNIC-ASBLK-00306-00371 72,448
325 DNIC-ASBLK-00306-00371 72,448
346 DNIC-ASBLK-00306-00371 71,680
336 DNIC-ASBLK-00306-00371 71,680
350 DNIC-ASBLK-00306-00371 71,680
344 DNIC-ASBLK-00306-00371 71,168
332 DNIC-ASBLK-00306-00371 70,912
1555 DNIC-ASBLK-01550-01601 70,912
327 DNIC-ASBLK-00306-00371 69,632
349 DNIC-ASBLK-00306-00371 69,376
324 DNIC-ASBLK-00306-00371 69,120
321 DNIC-ASBLK-00306-00371 68,352
342 DNIC-ASBLK-00306-00371 67,840
323 DNIC-ASBLK-00306-00371 67,584
319 DNIC-ASBLK-00306-00371 67,584
329 DNIC-ASBLK-00306-00371 67,328
687 DNIC-AS-00687 67,328
5839 DNIC-ASBLK-05800-06055 66,816
352 DNIC-ASBLK-00306-00371 66,560
338 DNIC-ASBLK-00306-00371 66,560
317 DNIC-ASBLK-00306-00371 66,304
1959 DNIC-AS-01959 66,304
353 DNIC-ASBLK-00306-00371 66,304
339 DNIC-ASBLK-00306-00371 66,304
1562 DNIC-ASBLK-01550-01601 66,048
1559 DNIC-ASBLK-01550-01601 65,792
1565 DNIC-ASBLK-01550-01601 65,792
6009 DNIC-ASBLK-05800-06055 65,792
1569 DNIC-ASBLK-01550-01601 65,792
5264 DNIC-ASBLK-05120-05376 65,792
364 DNIC-ASBLK-00306-00371 65,536
5376 DNIC-ASBLK-05120-05376 65,536
359 DNIC-ASBLK-00306-00371 65,536
5976 DNIC-ASBLK-05800-06055 65,536
328 DNIC-ASBLK-00306-00371 65,536
307 DNIC-ASBLK-00306-00371 65,536
358 DNIC-ASBLK-00306-00371 65,536
1586 DNIC-ASBLK-01550-01601 65,536
322 DNIC-ASBLK-00306-00371 65,536
343 DNIC-ASBLK-00306-00371 65,536
371 DNIC-ASBLK-00306-00371 65,536
366 DNIC-ASBLK-00306-00371 65,536
1566 DNIC-ASBLK-01550-01601 65,536
27047 DNIC-ASBLK-27032-27159 58,624
571 DNIC-AS-00571 55,296
149 DNIC-AS-00149 52,992
5237 DNIC-ASBLK-05120-05376 48,896
27087 DNIC-ASBLK-27032-27159 38,656
5374 DNIC-ASBLK-05120-05376 35,072
2577 DNIC-AS-02577 34,816
1590 DNIC-ASBLK-01550-01601 34,048
1568 DNIC-ASBLK-01550-01601 33,024
6034 DNIC-ASBLK-05800-06055 31,488
6040 DNIC-ASBLK-05800-06055 26,368
5133 DNIC-ASBLK-05120-05376 24,320
2046 DNIC-AS-02046 18,944
564 DNIC-AS-00564 17,408
27138 DNIC-ASBLK-27032-27159 17,152
310 DNIC-ASBLK-00306-00371 16,640
1567 DNIC-ASBLK-01550-01601 16,384
1551 DNIC-ASBLK-01550-01601 16,384
5306 DNIC-ASBLK-05120-05376 16,384
5842 DNIC-ASBLK-05800-06055 12,800
3473 DNIC-AS-03473 11,776
1554 DNIC-ASBLK-01550-01601 9,728
121 DNIC-AS-00121 9,472
5323 DNIC-ASBLK-05120-05376 9,472
3474 DNIC-AS-03474 9,216
27079 DNIC-ASBLK-27032-27159 8,960
1733 DISACENT-NIPR-ASN 8,704
1208 DNIC-AS-01208 8,448
5956 DNIC-ASBLK-05800-06055 8,448
518 DNIC-AS-00518 8,192
273 DNIC-AS-00273 8,192
228 DNIC-AS-00228 8,192
27085 DNIC-ASBLK-27032-27159 7,424
627 DNIC-ASBLK-00616-00665 7,168
5852 DNIC-ASBLK-05800-06055 6,656
5982 DNIC-ASBLK-05800-06055 6,144
6045 DNIC-ASBLK-05800-06055 5,376
1599 DNIC-ASBLK-01550-01601 5,120
27067 DNIC-ASBLK-27032-27159 5,120
295 USTCCLOUD 4,864
27051 DNIC-ASBLK-27032-27159 4,864
1598 DNIC-ASBLK-01550-01601 4,608
27069 DNIC-ASBLK-27032-27159 4,352
5853 DNIC-ASBLK-05800-06055 4,096
1591 DNIC-ASBLK-01550-01601 3,584
27080 DNIC-ASBLK-27032-27159 3,584
5927 DNIC-ASBLK-05800-06055 3,584
5994 DNIC-ASBLK-05800-06055 3,328
1904 DNIC-AS-01904 3,072
1913 DNIC-ASBLK-01910-01914 3,072
5182 DNIC-ASBLK-05120-05376 2,304
3954 DNIC-AS-03954 2,048
313 DNIC-ASBLK-00306-00371 2,048
2621 DNIC-AS-02621 2,048
3471 DNIC-AS-03471 2,048
5969 DNIC-ASBLK-05800-06055 1,792
27059 DNIC-ASBLK-27032-27159 1,792
27137 DNIC-ASBLK-27032-27159 1,536
616 DNIC-ASBLK-00616-00665 1,536
3472 DNIC-AS-03472 1,536
2629 DNIC-RAS-02629 1,280
3541 DNIC-AS-03541 1,280
5132 DNIC-ASBLK-05120-05376 1,024
1918 DNIC-AS-01918 1,024
5978 DNIC-ASBLK-05800-06055 1,024
1911 DNIC-ASBLK-01910-01914 1,024
309 DNIC-ASBLK-00306-00371 1,024
748 DNIC-AS-00748 1,024
664 DNIC-ASBLK-00616-00665 1,024
27033 DNIC-ASBLK-27032-27159 1,024
27034 DNIC-ASBLK-27032-27159 1,024
27044 DNIC-ASBLK-27032-27159 1,024
580 DNIC-AS-00580 1,024
722 DNIC-ASBLK-00721-00726 1,024
3544 DNIC-AS-03544 1,024
5935 DNIC-ASBLK-05800-06055 1,024
3538 DNIC-AS-03538 1,024
27155 DNIC-ASBLK-27032-27159 1,024
5979 DNIC-ASBLK-05800-06055 768
5819 DNIC-ASBLK-05800-06055 768
5966 DNIC-ASBLK-05800-06055 768
6006 DNIC-ASBLK-05800-06055 768
552 DNIC-AS-00552 768
27052 DNIC-ASBLK-27032-27159 768
5957 DNIC-ASBLK-05800-06055 768
6002 DNIC-ASBLK-05800-06055 768
619 DNIC-ASBLK-00616-00665 512
5052 DNIC-AS-05052 512
5329 DNIC-ASBLK-05120-05376 512
5341 DNIC-ASBLK-05120-05376 512
5370 DNIC-ASBLK-05120-05376 512
5860 DNIC-ASBLK-05800-06055 512
6022 DNIC-ASBLK-05800-06055 512
27149 DNIC-ASBLK-27032-27159 512
27139 DNIC-ASBLK-27032-27159 512
308 DNIC-ASBLK-00306-00371 512
5958 DNIC-ASBLK-05800-06055 512
1553 DNIC-ASBLK-01550-01601 512
6012 DNIC-ASBLK-05800-06055 512
312 DNIC-ASBLK-00306-00371 256
118 DNIC-AS-00118 256
27091 DNIC-ASBLK-27032-27159 256
27154 DNIC-ASBLK-27032-27159 256
27156 DNIC-ASBLK-27032-27159 256
311 DNIC-ASBLK-00306-00371 256
170 DNIC-AS-00170 256
27152 DNIC-ASBLK-27032-27159 256
147 DNIC-AS-00147 256
56 DNIC-AS-00056 256
514 DSADC-MECH 256
3666 DNIC-ASBLK-03664-03667 256
5963 DNIC-ASBLK-05800-06055 256
3470 DNIC-AS-03470 256
1908 DNIC-AS-01908 256
1912 DNIC-ASBLK-01910-01914 256
5265 DNIC-ASBLK-05120-05376 256
527 DNIC-AS-00527 256
27097 DNIC-ASBLK-27032-27159 256
5864 DNIC-ASBLK-05800-06055 0
27153 DNIC-ASBLK-27032-27159 0
5887 DNIC-ASBLK-05800-06055 0
5953 DNIC-ASBLK-05800-06055 0
5368 DNIC-ASBLK-05120-05376 0
27041 DNIC-ASBLK-27032-27159 0
6037 DNIC-ASBLK-05800-06055 0
5980 DNIC-ASBLK-05800-06055 0
27096 DNIC-ASBLK-27032-27159 0
6025 DNIC-ASBLK-05800-06055 0
27090 DNIC-ASBLK-27032-27159 0
IPv4 Prefixes for AS721 - showing the first 20 of 281 networks
Network Location Addresses
130.22.0.0/16 DoD Network Information Center   Whitehall 65,536
131.16.0.0/16 DoD Network Information Center   Frankfurt am Main 65,536
131.32.0.0/11 Air Force Systems Networking   Montgomery (Gunter Annex) 2,097,152
131.4.0.0/15 DoD Network Information Center   Montgomery 131,072
131.64.0.0/13 DoD Network Information Center   Columbus (East Columbus) 524,288
131.74.0.0/15 DoD Network Information Center   Whitehall 131,072
131.76.0.0/14 DoD Network Information Center   Whitehall 262,144
131.78.204.0/24 DoD Network Information Center   Chicago 256
131.78.3.0/24 DoD Network Information Center   Chicago 256
131.80.0.0/14 DoD Network Information Center   Whitehall 262,144
131.86.0.0/15 DoD Network Information Center   London 131,072
131.86.0.0/16 DoD Network Information Center   London 65,536
131.87.0.0/16 DoD Network Information Center   Whitehall 65,536
132.0.0.0/10 Air Force Systems Networking   Montgomery (Gunter Annex) 4,194,304
132.128.0.0/12 DoD Network Information Center   Sierra Vista (Fort Huachuca) 1,048,576
132.80.0.0/12 DoD Network Information Center   Sierra Vista (Fort Huachuca) 1,048,576
132.96.0.0/11 DoD Network Information Center   Sierra Vista (Fort Huachuca) 2,097,152
134.135.0.0/16 DoD Network Information Center   Whitehall 65,536
134.233.0.0/16 DoD Network Information Center   Frankfurt am Main 65,536
134.80.0.0/16 Rcc-C   Sierra Vista (Fort Huachuca) 65,536
IPv6 Prefixes for AS721
Network Location /64 Prefixes
2608:121::/32 DoD Network Information Center   Chicago 232