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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 | 23,661 |
| 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 |
| 236 |
| 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 | 4,490 |
| 1.5K |
| — |
| 4 |
| AS11791US | SLC-IDENT-AS - IdenTrust | 1.5K | — | 2 |
| AS396162US | ANICO-3030 - American National Insurance Company | 1.5K | — | 6 |
| AS7191US | CENTURYLINK-PRISM - CenturyLink Communications, LLC | 1.5K | — | 2 |
| AS11821US | SMARTBURST - SmartBurst LLC | 1.5K | — | 3 |
| AS27395US | OSONET - OSOLABS LLC | 1.5K | — | 3 |
| AS54006US | RANCH-WIRELESS-INC - VTX Communications LLC | 1.5K | — | 5 |
| AS40766US | EQUINOX-PAYMENTS - Equinox Payments | 1.5K | — | 6 |
| AS22075US | AS-OUTBRAIN - Outbrain, Inc. | 1.5K | — | 6 |
| AS36544US | BWINPARTY-US-01 - BWIN.PARTY ENTERTAINMENT (NJ), LLC | 1.5K | — | 6 |
| AS40608US | HCTNEBRASKA - HERSHEY COOPERATIVE TELEPHONE CO | 1.5K | — | 2 |
| AS43755US | NODESDIRECT Nodes Direct Holdings LLC | 1.5K | — | 3 |
| AS6072US | UNISYS-AS-C - Unisys Corporation | 1.5K | — | 6 |
| AS54855US | ISS-01 - Interface Security Systems LLC | 1.5K | — | 6 |
| AS27237US | AHSNET-01 - Ardent Health Services, Inc. | 1.5K | — | 6 |
| AS26931US | SCHONFELD-NET - Schonfeld Strategic Techworx, LLC. | 1.5K | — | 5 |
| AS40358US | TFCU-BLK-1 - Tinker Credit Union, Inc. | 1.5K | — | 4 |
| AS62893US | FIBERWAVE - Fiber Wave, LLC | 1.5K | — | 5 |
| AS54316US | AP-FOUNDATION - AP GP Operations, LLC | 1.5K | 4.1K | 6 |
| AS46852US | IMC-CHICAGO - IMC Markets | 1.5K | — | 3 |
| AS11336US | BLACKROCK-FINANCIAL-MANAGEMENT - BlackRock Financial Management, Inc. | 1.5K | — | 6 |
| AS4869US | CNMCC - Central New Mexico Community College | 1.5K | — | 6 |
| AS11246US | AILUJ-AS-A - Ailuj Inc. | 1.5K | — | 3 |
| AS54301US | IPHASE-AS - Interphase Communications, Inc. | 1.5K | — | 6 |
| AS19809US | ASNBLK-VTLA2 - NTT Global Networks Incorporated | 1.5K | — | 6 |
| AS207223US | GLOBALCON Global Connections Network LLC | 1.5K | — | 6 |
| AS397832US | EPF-CO - Arconic Inc. | 1.5K | — | 3 |
| AS6349US | BCN-TELECOM-ASN1 - BCN Telecom Inc. | 1.5K | — | 6 |
| AS64260US | SRDF - SRDF, Inc. | 1.5K | 65.5K | 5 |
| AS14006US | RAFFERTYCAPITALMARKETS - RAFFERTY CAPITAL MARKETS | 1.5K | — | 3 |
| AS396123US | WAVEBAND-LLC - WAVE.BAND, LLC | 1.5K | — | 6 |
| AS395962US | WSU-VAN-AS - Washington State University | 1.5K | — | 3 |
| AS6337US | HIWAAY - HIWAAY INFORMATION SERVICES, INC. | 1.5K | — | 2 |
| AS205196US | BIGCORE-ASN BIG CORE LLC | 1.5K | — | 6 |
| AS40760US | FWB-ALASKA-2 - TelAlaska | 1.5K | — | 3 |
| AS402197US | RESIDENCE-FIBER-LLC - Residence Fiber | 1.5K | 2.6K | 14 |
| AS10493US | GCN-AS - Grand Central Networks Inc. | 1.5K | — | 6 |
| AS22003US | PT-ASN - PALANTIR TECHNOLOGIES INC. | 1.5K | — | 6 |
| AS10859US | GDIT-CSRA-01 - General Dynamics Information Technology, Inc. | 1.5K | — | 6 |
| AS199152US | VDC-USA Virtual Data Center Inc | 1.5K | 262.1K | 14 |
| AS216435US | PLIMMOBILE-AS Plim Mobile Telecom LLC | 1.5K | 8.5K | 43 |
| AS54110US | CLEARLYIP1 - Modulis | 1.5K | — | 5 |
| AS18484US | VTLA - NTT Global Networks Incorporated | 1.5K | — | 6 |
| AS402950US | XNK - XNK, | 1.5K | — | 6 |
| AS36678US | CTUSA - CHINA TELECOM (AMERICAS) CORPORATION | 1.5K | — | 5 |
| AS46667US | EPSEL-ASN - Evercore Partners Services East, LLC | 1.5K | — | 6 |
| AS11169US | ARQUENZO-KCMO-01 - Arquenzo LLC | 1.5K | 4.1K | 5 |