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AS356
AS356 United States Department of Defense (DoD)
DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD) · registered in the United States
IPv4 addresses 131,072 75 prefixes · 0.004% of announced IPv4
Rank in United States #528 largest network in US by IPv4 space, of 18,338 · <0.01% of US
Rank worldwide #1,581 of 79,396 networks with IPv4
IPv6 none no IPv6 routes announced
IPv4 prefixes
All 75 prefixes, in address order.
55.48.0.0/17 55.48.128.0/18 55.48.192.0/21 55.48.200.0/24 55.48.201.0/24 55.48.202.0/23 55.48.204.0/22 55.48.208.0/20 55.48.224.0/19 55.89.0.0/19 55.89.32.0/23 55.89.34.0/23 55.89.36.0/24 55.89.37.0/24 55.89.38.0/23 55.89.40.0/21 55.89.48.0/20 55.89.64.0/21 55.89.72.0/22 55.89.76.0/23 55.89.78.0/23 55.89.80.0/22 55.89.84.0/23 55.89.86.0/23 55.89.88.0/21 55.89.96.0/24 55.89.97.0/24 55.89.98.0/23 55.89.100.0/22 55.89.104.0/23 55.89.106.0/23 55.89.108.0/22 55.89.112.0/20 55.89.128.0/19 55.89.160.0/24 55.89.161.0/24 55.89.162.0/23 55.89.164.0/22 55.89.168.0/23 55.89.170.0/24 55.89.171.0/24 55.89.172.0/22 55.89.176.0/22 55.89.180.0/24 55.89.181.0/24 55.89.182.0/23 55.89.184.0/21 55.89.192.0/21 55.89.200.0/24 55.89.201.0/24 55.89.202.0/23 55.89.204.0/23 55.89.206.0/23 55.89.208.0/23 55.89.210.0/24 55.89.211.0/24 55.89.212.0/22 55.89.216.0/21 55.89.224.0/22 55.89.228.0/23 55.89.230.0/23 55.89.232.0/24 55.89.233.0/24 55.89.234.0/23 55.89.236.0/23 55.89.238.0/24 55.89.239.0/24 55.89.240.0/24 55.89.241.0/24 55.89.242.0/23 55.89.244.0/22 55.89.248.0/23 55.89.250.0/24 55.89.251.0/24 55.89.252.0/22
Other ASNs named United States Department of Defense (DoD)
172 other networks use the same organisation name; together with AS356 they announce 282,590,464 IPv4 addresses. Largest 30 shown.
ASN Name IPv4 addresses
AS749 DNIC-AS-00749 - United States Department of Defense (DoD) US 222,038,272 AS721 DNIC-ASBLK-00721-00726 - United States Department of Defense (DoD) US 29,541,376 AS56 DNIC-AS-00056 - United States Department of Defense (DoD) US 7,785,728 AS306 DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD) US 4,492,288 AS668 DNIC-AS-00668 - United States Department of Defense (DoD) US 2,549,504 AS5972 DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) US 1,865,472 AS27064 DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) US 1,594,112 AS637 DNIC-ASBLK-00616-00665 - United States Department of Defense (DoD) US 929,280 AS367 DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD) US 811,776 AS5852 DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) US 526,592 AS357 DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD) US 393,216 AS361 DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD) US 393,216 AS647 DNIC-ASBLK-00616-00665 - United States Department of Defense (DoD) US 348,928 AS27046 DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) US 311,552 AS5180 DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) US 270,848 AS1554 DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD) US 266,496 AS5277 DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) US 265,472 AS370 DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD) US 264,192 AS6039 DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) US 224,000 AS1600 DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD) US 197,120 AS331 DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD) US 196,608 AS335 DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD) US 196,608 AS340 DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD) US 196,352 AS5371 DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) US 196,352 AS6035 DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) US 167,936 AS27142 DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) US 155,904 AS6041 DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) US 147,200 AS665 DNIC-ASBLK-00616-00665 - United States Department of Defense (DoD) US 142,848 AS345 DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD) US 132,608 AS1556 DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD) US 132,096
Similar-sized networks in United States
ASN Name IPv4 addresses
AS33442 #525 ZEBRA-TECHNOLOGIES-BGP-AS-NUMBER - Zebra Technologies Corporation131,072 AS48 #526 DNIC-AS-00048 - Navy Network Information Center (NNIC)131,072 AS4190 #527 BINGHAMTON-U - Binghamton University131,072 AS360 #529 DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD)131,072 AS1201 #530 ASN-ODU-AS-AS - Old Dominion University131,072 AS1701 #531 AS1701 - National Aeronautics and Space Administration131,072
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