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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) | 227.4M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 217.9M | 25,247 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,322 |
| 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.
32,189 autonomous systems registered to United States. Click an AS for detail.
| 72.9M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,901 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.9M | 2,010 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.5M | 4,222 |
| 3.1K |
| 256 |
| 6 |
| AS267US | NETHER-NET - Nether.Net | 3.1K | 4.1K | 6 |
| AS63344US | DKM2-ARIN - The Reynolds and Reynolds Company | 3.1K | — | 11 |
| AS394102US | NETFIRE-MSTR01 - NetFire, LLC | 3.1K | 65.5K | 7 |
| AS63254US | NASSAU-COUNTY-NY - Department of Information Technology | 3.1K | — | 5 |
| AS31978US | PEAKWIFI - PeakWiFi LLC | 3.1K | — | 12 |
| AS32270US | LDTEL - LD Telecommunications, Inc. | 3.1K | 65.5K | 3 |
| AS11747US | MK-SYSTEMSUSA-INC-01 - MK Systems USA Inc. | 3.1K | — | 2 |
| AS32800US | MTELCO - Moundridge Telephone Co. | 3.1K | — | 7 |
| AS22147US | PACKETSURGE - Open Contributors Corporation for Advanced Internet Development, Inc. | 3.1K | 274 | 14 |
| AS64261US | ASN-CVILLE-FIBERCOM - City of Cartersville | 3.1K | — | 7 |
| AS16931US | GLOBAL-PAYMENTS-1 - Global Payments, Inc. | 3.1K | — | 10 |
| AS1432US | AC-AS-1 - Albion College | 3.1K | — | 2 |
| AS18938US | PRESSGANEY - PRESS GANEY ASSOCIATES INC | 3.1K | — | 8 |
| AS393951US | HORTONS-TV - Hortons TV & Electronics Inc | 3.1K | — | 6 |
| AS397298US | PEOPLES-TELECOM-LLC - Peoples Telecommunications LLC | 3.1K | — | 11 |
| AS27373US | DOUGLAS-COUNTY-COMMUNITY-NETWORK - Douglas County PUD | 3.1K | 256 | 8 |
| AS21993US | SCHLAGE-AS - Schlage Lock Company LLC | 3.1K | — | 9 |
| AS63222US | CARNIVALCORP-ASN1 - Carnival Corporation | 3.1K | — | 5 |
| AS29886US | ESVBA-ASN1 - Eastern Shore of Virginia Broadband Authority | 3.1K | 65.5K | 5 |
| AS1411US | CHRISTOPHER-NEWPORT-UNIVERSITY - Christopher Newport University | 3.1K | — | 9 |
| AS395505US | IMANAGE - iManage, LLC | 3.1K | — | 11 |
| AS14222US | NFCU-AS - Navy Federal Credit Union | 3.1K | — | 12 |
| AS40631US | MASTEC-PRIVATE - Mastec, Inc | 3.1K | — | 7 |
| AS17015US | WSCU - Western Colorado University | 3.1K | — | 5 |
| AS16887US | AETHERNETSANANTONIO - Aethernet LLC | 3.1K | — | 12 |
| AS401174US | CA-CDT-MMBI-01 - State of California, Department of Technology | 3.1K | 65.5K | 5 |
| AS13713US | ARCOT - Avago Technologies U.S. Inc. | 3.1K | — | 12 |
| AS40342US | EARLYWARNINGSERVICES - Early Warning Services | 3.1K | — | 9 |
| AS955US | LSHIY - LSHIY LLC | 3.1K | 131.1K | 28 |
| AS1965US | VISTRAENERGY-1965 - Vistra Corporate Services Company | 3.1K | — | 12 |
| AS46830US | ASN-GWINNETT - Gwinnett County Public Schools | 3.1K | — | 8 |
| AS62482US | AS-LRCOMM - L.R. Communications, Inc. | 3.1K | — | 12 |
| AS11817US | STAFFORDNET - Stafford Associates Computer Specialists, Inc. | 3.1K | — | 12 |
| AS53520US | WILOGIC-INC-AS0 - WiLogic, Inc. | 3.1K | — | 5 |
| AS7366US | LEMURIACO - Lemuria Communications Inc. | 3.1K | — | 2 |
| AS35924US | NTS-TYLER-01 - Vexus Fiber | 3.1K | — | 3 |
| AS20398US | CNCS-AS - Controlled Networks and Communications Solutions, Inc. | 3.1K | — | 12 |
| AS55244US | BLUE-01 - Blue Origin Enterprises, L.P. | 3.1K | 260 | 13 |
| AS13830US | NEXRIL - PureVoltage Hosting Inc. | 3.1K | 12.3K | 7 |
| AS11359US | RMCNEVADA - Zayo Bandwidth | 3.1K | — | 5 |
| AS21964US | THE-SCOTTS-COMPANY - The Scotts Company | 3.1K | — | 5 |
| AS399353US | NETAFY-INC - Netafy, Inc. | 3.1K | 256 | 7 |
| AS36645US | STEADFAST-NETWORKS-GEN - Genuity Networks, LLC | 3.1K | — | 3 |
| AS22184US | IRIDIUM-SATELLITE - IRIDIUM SATELLITE,LLC | 3.1K | — | 9 |
| AS394699US | ZENFI-ACCESS - ZenFi Networks LLC | 3.1K | — | 6 |
| AS12228US | 2CO - GENESISCARE USA OF FLORIDA, LLC | 3.1K | — | 2 |