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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. | 218.2M | 25,766 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,308 |
| 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.
32,243 autonomous systems registered to United States. Click an AS for detail.
| 73M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,898 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,998 |
| AS701US | UUNET - Verizon Business | 43.6M | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,359 |
| 512 |
| — |
| 2 |
| AS54102US | FABFIBERNET - Fabulous Fiber LLC | 512 | 4.1K | 2 |
| AS40877US | XULA - Xavier University of Louisiana | 512 | — | 2 |
| AS55132US | SAJAH - Beverly Hills Hotel | 512 | — | 2 |
| AS208757US | RelInfoAS RelINFO Solutions LLC | 512 | — | 1 |
| AS46364US | LAKEVIEW-LOAN-SERVICING - Lakeview Loan Servicing, LLC | 512 | — | 2 |
| AS16392US | PIONEER-STANDARD - Agilysys Inc. | 512 | — | 2 |
| AS33496US | ISC - ISC CONSTRUCTORS, LLC | 512 | 1 | 3 |
| AS395430US | COO - City of Oakland | 512 | — | 2 |
| AS399533US | TATRA - Tatra Services Inc. | 512 | 4.4K | 4 |
| AS395668US | EFM-ENTERPRISE-FLEET-MGMT - Enterprise Fleet Management, Inc | 512 | — | 2 |
| AS46695US | REGENT-ASN1 - Regent University | 512 | — | 2 |
| AS46787US | RXLINC-INC - RXLINC LLC | 512 | — | 2 |
| AS16797US | TASB-AS - Texas Association of School Boards, Inc | 512 | — | 1 |
| AS36768US | KOAT-TV - Hearst-Argyle Television, Inc. | 512 | — | 2 |
| AS399417US | VORTEXOKMAIN - VortexOK.net LLC | 512 | 65.5K | 3 |
| AS395183US | ETEC-CORP-AS - ETEC | 512 | — | 2 |
| AS402123US | UNMTA-AS-01 - UNMTA LLC | 512 | 256 | 3 |
| AS215367US | LIXER LENIN JABIB RAMIREZ | 512 | 1 | 3 |
| AS394058US | TELOSC-ASH - Telos Corporation | 512 | — | 2 |
| AS7234US | RUSSELL7234 - Frank Russell | 512 | — | 1 |
| AS50937US | INFINITIUM-AS INFINITIUM CORPORATION | 512 | 1 | 3 |
| AS14293US | UNI-EDGE - UniEdge Networks LLC | 512 | — | 2 |
| AS62894US | PSD-EDTEC-K20-RC-01 - Puyallup School District | 512 | — | 2 |
| AS398053US | COMPENTERPRISE - Comporium, Inc | 512 | — | 2 |
| AS24865US | SMOTI-AS Keith Mitchell | 512 | — | 1 |
| AS401462US | SUBARU-SIA - Subaru of Indiana Automotive, Inc. | 512 | — | 1 |
| AS395433US | D214 - Township High School District 214 | 512 | — | 2 |
| AS395141US | PRMHQ-AS1 - Primisys Computer Systems & Support, LLC | 512 | 65.5K | 3 |
| AS14927US | TERATEAMS-INC - TeraTeams Inc | 512 | — | 2 |
| AS11211US | NCIC - NCIC Operator Services | 512 | — | 2 |
| AS395737US | UFCU - University Federal Credit Union | 512 | — | 2 |
| AS14105US | NO - Secure IP | 512 | — | 2 |
| AS395034US | ZTHERNET - Zthernet, LLC | 512 | — | 2 |
| AS31859US | ANGELINA-COUNTY - ANGELINA COUNTY | 512 | 1 | 2 |
| AS19357US | NESL - New Enterprise Stone & Lime Company | 512 | — | 2 |
| AS12218US | AMERICAN-INSTITUTES-FOR-RESEARCH - American Institutes for Research | 512 | — | 2 |
| AS62891US | ASN-CHIEF-1 - CHIEF INDUSTRIES, INC. | 512 | — | 1 |
| AS22537US | ALBEMARLE-CORP - Albemarle Corp | 512 | — | 2 |
| AS19682US | TLFXAS01 - TeleFlex Networks, LLC | 512 | — | 1 |
| AS397645US | EPICGA-DC1-AS - Epic Games Inc. | 512 | — | 2 |
| AS402766US | MARKVD-NET - Mark | 512 | 256 | 3 |
| AS398866US | INTERBANK-01 - InterBank | 512 | — | 2 |
| AS393888US | SQUAR-12-AS-1 - SQUARETRADE, INC. | 512 | — | 2 |
| AS258US | BRAGGSRI-EGP-AS - Headquarters, USAISC | 512 | — | 2 |
| AS22230US | NETDOCUMENTS-US - NetDocuments | 512 | — | 2 |
| AS401617US | VIETTEL - Viettell | 512 | 8.2K | 4 |