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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 | 23,961 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,299 |
| 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.
32,159 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 | 1,998 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,341 |
| — |
| — |
| 0 |
| AS16572US | ATT-MOBILITY-LLC-AS16572 - AT&T Enterprises, LLC | — | — | 0 |
| AS16584US | IONSWITCH - IonSwitch, LLC | — | — | 0 |
| AS16585US | SUL-4-AS - STORCK USA | — | — | 0 |
| AS16621US | DARKHORSE - Dark Horse Networks | — | — | 0 |
| AS16687US | KTC-INET - Windstream Communications LLC | — | — | 0 |
| AS16786US | ART-COM - Art.com, Inc. | — | — | 0 |
| AS16812US | SAGENET-ENT - SageNet LLC | — | — | 0 |
| AS16965US | SBIS-SPFDMO - AT&T Enterprises, LLC | — | — | 0 |
| AS16972US | WEBFEAT - Ex Libris (USA) Inc | — | — | 0 |
| AS16983US | AS16983 - Conduent Business Services, LLC | — | — | 0 |
| AS17100US | REMAT - Rematics LLC | — | — | 0 |
| AS17106US | CELLCO-PART - Verizon Business | — | — | 0 |
| AS17136US | DSV-FORMER-SPANGROUP-UTI - DSV Air & Sea Inc. | — | — | 0 |
| AS17169US | IDAHO-IX-ASN - Idaho Internet Exchange, Inc. | — | — | 0 |
| AS17251US | MONST-3AS - Monster Worldwide, Inc. | — | — | 0 |
| AS17335US | TPLLC-NJ - Third Point LLC | — | — | 0 |
| AS17354US | DAKOTA - DakotaPro.biz | — | — | 0 |
| AS17359US | TELOV-FL-TPA - Charter Communications, Inc | — | — | 0 |
| AS18432US | TORONTO-COLO - Vonage Holdings, Inc. | — | — | 0 |
| AS18623US | TWC-18623-NA - Charter Communications Inc | — | — | 0 |
| AS18654US | TOTALITY-2 - Verizon Business | — | — | 0 |
| AS18658US | ECHD-AS1 - ECTOR COUNTY HOSPITAL DISTRICT | — | — | 0 |
| AS18856US | SCCA - Seattle Cancer Care Alliance | — | — | 0 |
| AS18896US | CALLIS-COMMUNICATIONS-AS18896 - Callis Communications | — | — | 0 |
| AS18899US | AS-JDASOFTSCT - Blue Yonder, Inc | — | — | 0 |
| AS18904US | CONVERGEDTECHGROUP - Converged Technology Group Inc. | — | — | 0 |
| AS18916US | PSFT-ECENTER - Oracle Corporation | — | — | 0 |
| AS18936US | GLENCOM - Glencom Systems Inc. | — | — | 0 |
| AS18942US | WEBHOSTPLUS-INC - WebHostPlus Inc | — | — | 0 |
| AS18953US | ALL-POINTS-BROADBAND-2 - All Points Broadband | — | — | 0 |
| AS18983US | R2G-3 - Transaction Network Services, Inc. | — | — | 0 |
| AS19006US | CLICK1 - Infostructure Cable and Internet | — | — | 0 |
| AS19034US | AS-MLS-PIN - MLS Property Information Network | — | — | 0 |
| AS19055US | CAC-HQ - Credit Acceptance Corporation | — | — | 0 |
| AS19091US | CREDIT-KARMA - Credit Karma, Inc. | — | — | 0 |
| AS19145US | NETSONIC - Netsonic | — | — | 0 |
| AS19221US | NORTHSTAR-TRAVEL-MEDIA - NORTHSTAR Travel Media, LLC. | — | — | 0 |
| AS19230US | NANOG - NANOG | — | — | 0 |
| AS19242US | STRATA8 - Dunmore Management, LLC | — | — | 0 |
| AS19267US | PRADCO-SE-DATACENTER - PRADCO Outdoor Brands | — | — | 0 |
| AS19334US | SPORTLINE-DBC - Sportsline.com | — | — | 0 |
| AS19391US | BAJAU-CO-NM-TX - TDS TELECOM | — | — | 0 |
| AS19476US | MARCO-TECHNOLOGIES-DC-ITOL - Marco Technologies LLC | — | — | 0 |
| AS19490US | SBCASI-AKRON-OH-COVLIL - Wireless Maritime Services, LLC | — | — | 0 |
| AS19563US | ATHEN-EDI - Athenahealth | — | — | 0 |
| AS19591US | LVLT-19591 - Level 3 Parent, LLC | — | — | 0 |