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How United States ranks worldwide on dormant space, the transfer market, routing security and address density.
PeeringDB-registered presence.
APNIC-measured end-user deployment.
Clean prefixes (valid RPKI + IRR, no mismatch).
Cumulative IPv4, IPv6, and ASN allocations to United States over time.
The largest autonomous systems registered to United States by IPv4 footprint.
| AS | Holder | IPv4 | Prefixes |
|---|---|---|---|
| AS749US | DNIC-AS-00749 - United States Department of Defense (DoD) | 227.7M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,666 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| AS721US | DNIC-ASBLK-00721-00726 - United States Department of Defense (DoD) |
United States against its land-border neighbours on IPv4, IPv6, AS numbers and per-capita density.
Share of announced address space covered by valid Route Origin Authorizations.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 234 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,491 |
| 195.3K |
| 65.5K |
| 83 |
| AS54936US | WGL-107-ZONA-WYYERD - Wyyerd Group | 193K | 65.5K | 172 |
| AS3593US | FRONTIER-EPIX - Frontier Communications of America, Inc. | 193K | — | 55 |
| AS12025US | IMDC-AS12025 - Iron Mountain Data Center | 192.3K | 217.4K | 723 |
| AS196US | BOEING196 - The Boeing Company | 191.5K | — | 16 |
| AS8030US | WORLDNET5-10 - AT&T WorldNet | 191.2K | — | 40 |
| AS8015US | US-SIGNAL-MN01 - US Signal Company, L.L.C. | 189.2K | 65.8K | 11 |
| AS195US | SDSC-AS - San Diego Supercomputer Center | 189K | 81.9K | 50 |
| AS8796US | FD-298-8796 - FASTNET DATA INC | 188.7K | 25 | 371 |
| AS393442US | UNITED-FIBER - United Electric Cooperative | 188.4K | — | 128 |
| AS5647US | ASN-KODAK - Eastman Kodak Company | 187.1K | — | 16 |
| AS36692US | CISCO-UMBRELLA - Cisco OpenDNS, LLC | 186.1K | 850 | 859 |
| AS7065US | SNIC - Sonic.net, LLC | 186.1K | 33K | 40 |
| AS1767US | ILIGHT-NET - Indiana Higher Education Telecommunication System (IHETS) | 185.6K | 261 | 44 |
| AS7203US | LEASEWEB-USA-SFO - Leaseweb USA, Inc. | 185.3K | 5.3M | 168 |
| AS26347US | DREAMHOST-AS - New Dream Network, LLC | 184.6K | 18 | 28 |
| AS19416US | RBC-NY - RBC CAPITAL MARKETS CORPORATION | 183K | — | 81 |
| AS5065US | BUNNY-COMMUNICATIONS-GLOBAL - Bunny Communications | 182.8K | 1 | 643 |
| AS12079US | CELLCO-PART - Verizon Business | 181.5K | 202 | 17 |
| AS20454US | SSASN2 - SECURED SERVERS LLC | 181.2K | 4.9K | 166 |
| AS12129US | 123NET - 123.Net, Inc. | 181.2K | 69.6K | 54 |
| AS11273US | FDCSGNET - Fiserv Solutions, LLC | 180.7K | — | 145 |
| AS10967US | HOMEDEPOTNET - The Home Depot Inc. | 179.7K | — | 52 |
| AS11995US | OHSU - Oregon Health & Science University | 178.9K | — | 9 |
| AS1968US | UMASSNET-AS1968 - UMASSNET | 177.9K | 524.3K | 25 |
| AS984US | OWS-NETWORK - OCTOPUS WEB SOLUTION INC | 176.9K | 65.6K | 364 |
| AS13789US | INTERNAP-BLK3 - Unitas Global | 176.6K | 131.1K | 96 |
| AS801US | AMAZON-LEO - Amazon Technologies Inc. | 175.6K | 14K | 245 |
| AS45US | LLL-TIS-AS - Lawrence Livermore National Laboratory | 175.6K | 256 | 12 |
| AS11796US | AIRSTREAMCOMM-NET - Airstream Communications, LLC | 173.6K | 16.9M | 26 |
| AS10838US | OCEANIC-INTERNET-RR - Charter Communications Inc | 173.3K | 336.1K | 54 |
| AS25653US | FORTRESSITX - FortressITX | 172.3K | — | 92 |
| AS11398US | CENTURYLINK-LEGACY-EMBARQ-LVGS - CenturyLink Communications, LLC | 172.3K | — | 64 |
| AS13333US | CCI-PA-AS-1 - Fidium | 172K | 65.5K | 41 |
| AS63199US | CDSC-AS1 - CDS Global Cloud Co., Ltd | 171.5K | 18.4K | 518 |
| AS46475US | LIMESTONENETWORKS - Limestone Networks, Inc. | 171.5K | 65.6K | 339 |
| AS797US | AMERITECH-AS - AT&T Services, Inc. | 171.3K | — | 21 |
| AS3701US | LINK-OREGON - University of Oregon | 170.5K | 65.5K | 11 |
| AS62US | CONE - CyrusOne LLC | 170.2K | 134.4K | 171 |
| AS2749US | DNIC-AS-02749 - Navy Network Information Center (NNIC) | 170K | — | 14 |
| AS14992US | CRYSTALTECH - NewtekOne, Inc. | 168.7K | — | 14 |
| AS19331US | TWIN-LAKES - Twin Lakes Telephone Cooperative Corporation | 168.7K | 1M | 40 |
| AS5078US | ONENET-AS-1 - Oklahoma Network for Education Enrichment and | 168.4K | 65.6K | 43 |
| AS21976US | NJEDGE-NET - NJEDge.Net, Inc. | 167.9K | 65.5K | 97 |
| AS6035US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | 167.9K | — | 103 |
| AS12042US | ENVENTIS - Fidium | 167.7K | 131.1K | 111 |
| AS393238US | IMONC - ImOn Communications, LLC | 166.4K | 1.1M | 22 |