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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 | 24,749 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| 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.
32,226 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 | 3,906 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.7M | 4,282 |
| — |
| — |
| 0 |
| AS15028US | PENTWATER-CAPITAL-MGMT - PENTWATER CAPITAL MANAGEMENT LLC | — | — | 0 |
| AS15029US | TIC-USDHHS - U.S. Department of Health & Human Services | — | — | 0 |
| AS15183US | WVIX - West Virginia Internet Exchange | — | — | 0 |
| AS15245US | HARTE-HANKS-AS15245 - Harte-Hanks Inc. | — | — | 0 |
| AS15330US | WEB-COM-ASN2 - Web.com Group, Inc. | — | — | 0 |
| AS15352US | TCCC - The Coca-Cola Company | — | — | 0 |
| AS15445US | ICQ-AS Yahoo Inc. | — | — | 0 |
| AS16452US | M2NGAGE2 - M2ngage Telecommunications II Corp. | — | — | 0 |
| AS16455US | MLNK - MeridianLink, Inc. | — | — | 0 |
| AS16476US | FROSTY-ACRES - FROSTY ACRES BRANDS, INC. | — | — | 0 |
| AS16658US | PVAS-01 - Panavision International, L.P. | — | — | 0 |
| AS16684US | CLOUD-1-NSC - Norfolk Southern Railway Company | — | — | 0 |
| AS16688US | PEOPLENET-COMM-AS - PeopleNet Communications Corp | — | — | 0 |
| AS16720US | BLOCKCHAINLABS - Chance Telecom | — | — | 0 |
| AS16747US | REAL-TIME - Real Time Enterprises, Inc. | — | — | 0 |
| AS16776US | MOVE-CORP - Move Sales, Inc. | — | — | 0 |
| AS16852US | RESERVED-IPADMIN - Level 3 Parent, LLC | — | — | 0 |
| AS16890US | EDI-ASN1 - Executive Director, Inc. | — | — | 0 |
| AS16919US | CBNY - College Entrance Examination Board | — | — | 0 |
| AS16943US | EDGEWAVE1 - Edgewave, Inc. | — | — | 0 |
| AS16951US | IVANET-LIMA - IBASIS INC. | — | — | 0 |
| AS17006US | EWNYAS - Executive Workspace, LLC | — | — | 0 |
| AS17028US | HR40W - Herzfeld & Rubin, P.C. | — | — | 0 |
| AS17066US | MISSISSAUGA-OFFICE - Vonage Holdings, Inc. | — | — | 0 |
| AS17067US | INFINITE-CAMPUS-DC2 - Infinite Campus, Incorporated | — | — | 0 |
| AS17118US | VIMS - Virginia Institute of Marine Science | — | — | 0 |
| AS17173US | PATRICK-IND-01 - Patrick Industries, Inc. | — | — | 0 |
| AS17187US | EMC-AS17187 - Dell, Inc. | — | — | 0 |
| AS17363US | FORTRESSITX-LA - FortressITX | — | — | 0 |
| AS17375US | AFS-7 - AMERIPRISE FINANCIAL SERVICES, LLC | — | — | 0 |
| AS17377US | SPECTRA-2 - Spectra Energy Corporation | — | — | 0 |
| AS17914US | SECUREDGG-02 - Gameserverkings | — | — | 0 |
| AS18506US | IFT-10 - Institute of Food Technologists Inc | — | — | 0 |
| AS18531US | WISPER-WIFIM - Wisper ISP, LLC | — | — | 0 |
| AS18672US | EVOCATIVE1 - Evocative, Inc. | — | — | 0 |
| AS18831US | SCINTERNET-NET - South Central Communications, Inc. | — | — | 0 |
| AS18927US | KCNSC2 - National Nuclear Security Administration, Kansas City Plant | — | — | 0 |
| AS18954US | COWEN-ASN18954 - Cowen Group, Inc | — | — | 0 |
| AS19001US | YELPCORP - Yelp! Inc. | — | — | 0 |
| AS19087US | THE-UPS-STORE-INC - The UPS Store, Inc. | — | — | 0 |
| AS19103US | SNC-LAVALIN-CONSTRUCTORS-INC - ATKINSREALIS CONSTRUCTION (USA) INC | — | — | 0 |
| AS19141US | DXC-AS19141 - DXC US Latin America Corporation | — | — | 0 |
| AS19175US | APPALACHIAN-ELECTRIC-COOPERATIVE - Appalachian Electric Cooperative | — | — | 0 |
| AS19213US | SABRE-DFW - Sabre GLBL Inc. | — | — | 0 |
| AS19241US | SWGAO - Southwestern/Great American Inc. | — | — | 0 |
| AS19287US | SUNGARDAS-19287 - BroadbandONE, LLC | — | — | 0 |