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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 | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.1M | 21,094 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 638 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,247 |
| 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.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 398 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,709 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,959 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,423 |
| — |
| — |
| 0 |
| AS15032US | CTRX-AS1 - Catamaran LLC | — | — | 0 |
| AS15056US | XO-ASN9 - Verizon Business | — | — | 0 |
| AS15068US | SUPERCLUBS-JDV - SuperClubs.com | — | — | 0 |
| AS15091US | SHENTEL - Shentel Asset Entity I LLC | — | — | 0 |
| AS15104US | MBNA-NET-AS1 - Bank of America, National Association | — | — | 0 |
| AS15136US | AS-NSPOF - NSPOF Communications Inc | — | — | 0 |
| AS15145US | GLOBALSCAPE - GlobalSCAPE, Inc. | — | — | 0 |
| AS15219US | AS-15219 - Inteliquent, inc. | — | — | 0 |
| AS15298US | LSB-INDUSTRIES-INC - LSB Industries, Inc. | — | — | 0 |
| AS16405US | BEAER-AS - BE AEROSPACE, INC. | — | — | 0 |
| AS16412US | MSHA - Mountain States Health Alliance | — | — | 0 |
| AS16456US | M2NGAGE2 - M2ngage Telecommunications II Corp. | — | — | 0 |
| AS16558US | TOWERGROUP - TOWER GROUP INTERNATIONAL | — | — | 0 |
| AS16695US | AS-TIERP-16695 - TierPoint, LLC | — | — | 0 |
| AS16749US | AUTOLIVASP1 - Autoliv asp | — | — | 0 |
| AS16810US | CAVTEL01 - Windstream Communications LLC | — | — | 0 |
| AS16918US | CHRSOLUTIONS - CHR SOLUTIONS INC | — | — | 0 |
| AS16962US | HIPCS-IRVINE-ACCESS-OFFICE - AT&T Enterprises, LLC | — | — | 0 |
| AS16984US | ATLDC2 - Tulix Systems, Inc. | — | — | 0 |
| AS17000US | LONSDALE-AS - Bevcomm | — | — | 0 |
| AS17104US | FEDCOMM-USA - Federal Communications on Command, LLC | — | — | 0 |
| AS17221US | GRAUBARD - Graubard, Mollen & Miller, LLP. | — | — | 0 |
| AS17254US | ASN-TNE-17254 - TNE Telephone | — | — | 0 |
| AS17262US | CARNEGIEHALL-NY-881 - Carnegie Hall | — | — | 0 |
| AS17268US | WHITEHAT-US-01 - Synopsys Inc. | — | — | 0 |
| AS18494US | CENTURYLINK-LEGACY-EMBARQ-WRBG - CenturyLink Communications, LLC | — | — | 0 |
| AS18687US | MPOWER-2 - MPOWER COMMUNICATIONS CORP. | — | — | 0 |
| AS18813US | ENERGYSOLUTIONS - EnergySolutions LLC | — | — | 0 |
| AS18926US | PROVDC - PROVDC | — | — | 0 |
| AS18950US | HAWAIIANFIBER - HAWAIIAN TELCOM FIBER LLC | — | — | 0 |
| AS18979US | WHI - Whi Solutions Inc. | — | — | 0 |
| AS19080US | ASN-WBS-01 - GTT Americas, LLC | — | — | 0 |
| AS19093US | KYN-GTS - Kyndryl | — | — | 0 |
| AS19118US | AS-SIT - IDT Corporation | — | — | 0 |
| AS19154US | NTT SECURITY - NTT Security (US) Inc. | — | — | 0 |
| AS19292US | SUNGARDAS-19292 - BroadbandONE, LLC | — | — | 0 |
| AS19298US | DEDICATED-LOGISTICS - Dedicated Logistics, Inc. | — | — | 0 |
| AS19326US | TELNET-DR-AS - Telnet Worldwide, Inc. | — | — | 0 |
| AS19468US | ELYSIA-2 - Valex Cloud LLC | — | — | 0 |
| AS19488US | SBCASI-AKRON-OH-COVLIL - Wireless Maritime Services, LLC | — | — | 0 |
| AS19489US | SBCASI-AKRON-OH-COVLIL - Wireless Maritime Services, LLC | — | — | 0 |
| AS19500US | VISANET-4 - VISA INTERNATIONAL SERVICE ASSOCIATION | — | — | 0 |
| AS19619US | 8498500 - Graham Packaging Company | — | — | 0 |
| AS19646US | BBDO-COLO - BBDO NY | — | — | 0 |
| AS19714US | WASHINGTON-TRUST - The Washington Trust Company | — | — | 0 |
| AS19736US | HARDCASTLE-EXT - Peak6 Group LLC | — | — | 0 |