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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) | 227.5M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218M | 24,389 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,302 |
| 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.
32,169 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,996 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,341 |
| ADVANTAGE - Advantage Sales & Marketing LLC |
| 1K |
| — |
| 4 |
| AS18478US | NATAL-MED - Mednax Services, Inc. | 1K | — | 4 |
| AS16674US | COMPASSGROUP-USA - Compass Group USA Inc | 1K | — | 4 |
| AS4297US | CENTURYLINK-MTIPS4-HLR - CenturyLink Communications, LLC | 1K | — | 4 |
| AS40748US | CARCOM-MCTX - CarrierCOM LP | 1K | — | 1 |
| AS46563US | STONEH-AS - Stonehill College | 1K | — | 1 |
| AS16486US | WEYERHAEUSER - Weyerhaeuser Company | 1K | — | 1 |
| AS395462US | MILLER-ASN - Miller Telephone Company | 1K | — | 1 |
| AS32430US | BCPO - Bergen County Prosecutors Office | 1K | — | 4 |
| AS10990US | ATLDC - Tulix Systems, Inc. | 1K | — | 1 |
| AS46902US | CALSTRS-SAC1 - California State Teachers Retirement System (CalSTRS) | 1K | — | 3 |
| AS209373US | SWISSNET-AS SWISSNET LLC | 1K | — | 4 |
| AS14527US | CABELAS - Cabela's Inc. | 1K | — | 2 |
| AS36056US | ALASK-15 - Alaska Native Medical Center | 1K | — | 1 |
| AS18865US | AS-INTUIX - Intuix LLC | 1K | 3 | 7 |
| AS1826US | UNIVERSITY-OF-ARKANSAS-FORT-SMITH - University of Arkansas-Fort Smith | 1K | — | 1 |
| AS10490US | SOUTHERN-CROSSROADS-SOX - Georgia Institute of Technology | 1K | 65.5K | 2 |
| AS36163US | HILLCO-LTD - HILLCO, LTD | 1K | — | 1 |
| AS10359US | EPICSYS - Epic Systems Corporation | 1K | 1 | 2 |
| AS22727US | USADATANET - WCS | 1K | — | 4 |
| AS55155US | LPS-8 - Black Knight IP Holding Company, LLC | 1K | — | 3 |
| AS12092US | SONIFI - Sonifi Solutions, Inc. | 1K | — | 4 |
| AS33600US | TNTECH - Tennessee Technological University | 1K | — | 1 |
| AS400765US | OMATICON-01 - Omaticon Corporation | 1K | 4.1K | 3 |
| AS36809US | COCG---CITY-OF-CORAL-GABLES - City of Coral Gables | 1K | — | 1 |
| AS32215US | SVVSD - SVVSD | 1K | — | 3 |
| AS33397US | GENSOCIETYUTAH - Genealogical Society of Utah | 1K | 65.8K | 3 |
| AS27309US | TCC - The Computer Company, Inc. | 1K | — | 1 |
| AS10466US | MAGPI - MAGPI | 1K | 256 | 3 |
| AS22140US | T-MOBILE-AS22140 - T-Mobile USA, Inc. | 1K | 1 | 2 |
| AS393298US | FITELCO-7001 - Fishers Island Telephone Corp. | 1K | 65.5K | 5 |
| AS42198US | JURASSICINNOVATIONS Jurassic Innovations, LLC | 1K | 277 | 11 |
| AS62134US | IHNET-EU IHNetworks, LLC | 1K | — | 1 |
| AS1996US | ASN1 - Fairdinkum Consulting, LLC | 1K | — | 4 |
| AS43845US | HI-TECH ConnectTTo World, Inc trading as Hi-Tech Gateway, LLC Armenia branch | 1K | — | 4 |
| AS46721US | SKYNET-COUNTRY - Skynet Country INC | 1K | — | 2 |
| AS209179US | AFRICLOUD AfriCloud LLC | 1K | 5 | 9 |
| AS46185US | MAXSIP - Maxsip Telecom Corp | 1K | — | 4 |
| AS138948US | NTC-AS-APD - NORTHERN TRUST CORPORATION | 1K | — | 3 |
| AS40540US | MERITUSHEALTH - Meritus Medical Center, Inc. | 1K | — | 3 |
| AS401074US | TF-SEC - TForce Freight | 1K | — | 1 |
| AS36601US | TNT - Terra Nova Telecom, Inc. | 1K | 65.5K | 4 |
| AS23176US | BASICRESEARCH - Basic Research, LLC | 1K | — | 1 |
| AS394167US | DALLASISD - Dallas Independent School District | 1K | — | 2 |
| AS23039US | BELLAMB - Bell Ambulance, Inc. | 1K | — | 4 |
| AS25740US | POINT72 - Point72 Asset Management, LP | 1K | — | 4 |
| AS36428US | CYBERTIME-NETWORK-COMMUNICATIONS - Cybertime Network Communications | 1K | — | 4 |