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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 |
| — |
| — |
| 0 |
| AS18738US | EPICOR - EPICOR | — | — | 0 |
| AS18803US | TYLERTECH-18803 - Tyler Technologies, Inc. | — | — | 0 |
| AS18852US | ASHLANDINC-AS - Ashland Inc. | — | — | 0 |
| AS18930US | DOWCORNING151-163 - Dow Corning | — | — | 0 |
| AS19017US | QUALCOMM-QWBS-LV - Qualcomm, Inc. | — | — | 0 |
| AS19051US | SIMPLISAFE-01 - SimpliSafe | — | — | 0 |
| AS19177US | GOIN - BroadbandONE, LLC | — | — | 0 |
| AS19187US | IFOXNETLE-ENSONO-DCCS - Ensono LP | — | — | 0 |
| AS19271US | PEAK10 - Flexential Corp. | — | — | 0 |
| AS19291US | SUNGARDAS-19291 - BroadbandONE, LLC | — | — | 0 |
| AS19360US | SIRIUS-COMPUTER-SOLUTIONS-AS - Sirius Computer Solutions, Inc. | — | — | 0 |
| AS19384US | GRAMTEL001 - CyrusOne LLC | — | — | 0 |
| AS19486US | SBCASI-AKRON-OH-COVLIL - Wireless Maritime Services, LLC | — | — | 0 |
| AS19493US | SBCASI-AKRON-OH-COVLIL - Wireless Maritime Services, LLC | — | — | 0 |
| AS19567US | LOCKSTEP - Lockstep Technology Group | — | — | 0 |
| AS19585US | ESTESVALLEY-ASN - PRECISION TECHNOLOGY, INC. | — | — | 0 |
| AS19618US | GLOBEOP-2000 - GlobeOp Financial Services | — | — | 0 |
| AS19665US | RAMPANT - Rampant Inc! | — | — | 0 |
| AS19672US | EVERESTBROADBAND1 - Everest BBN, Inc. | — | — | 0 |
| AS19710US | AVEXON - Avexon | — | — | 0 |
| AS19757US | AS19757 - Virpus LLC | — | — | 0 |
| AS19822US | TPAC-SD-01 - TPx Communications | — | — | 0 |
| AS19877US | TOFV-INTERNET - Town of Fuquay-Varina | — | — | 0 |
| AS19959US | KASINET - Kansas Data Inc. | — | — | 0 |
| AS20036US | DSS-INC - DSS Inc. | — | — | 0 |
| AS20077US | IPNETZONE-ASN - IPNetZone | — | — | 0 |
| AS20118US | BN-DATECENTRE - BEACON NETWORKS LLC | — | — | 0 |
| AS20147US | KLD-BMN - KLDiscovery Ontrack, LLC | — | — | 0 |
| AS20157US | AHL - American Heritage Life Insurance Company | — | — | 0 |
| AS20199US | CRITICAL-IMPACT - Critical Impact | — | — | 0 |
| AS20386US | MOVE-VAN - Move Sales, Inc. | — | — | 0 |
| AS20461US | MYPT-SCH - United Airlines | — | — | 0 |
| AS21539US | VONAGE - Vonage Holdings, Inc. | — | — | 0 |
| AS21584US | SAAGL-ASN - INDIANA AUTO AUCTION | — | — | 0 |
| AS21585US | RISE-UT-AS21585 - JAB Wireless, INC. | — | — | 0 |
| AS21755US | CROWNCASTLE-AS21755 - Crown Castle Fiber LLC | — | — | 0 |
| AS21786US | SAN-MATEO - San Mateo County Office of Education | — | — | 0 |
| AS21810US | TEMPESCHOOLS - Tempe School District #3 | — | — | 0 |
| AS21825US | ICT-ASN-01 - Icarus Technologies | — | — | 0 |
| AS21905US | OREGON-HEALTH-NETWORK - Oregon Health Network, Inc. | — | — | 0 |
| AS22004US | ABOUT-COM - ABOUT, INC. | — | — | 0 |
| AS22046US | AS-PCNET-INC - Corserva, Inc. | — | — | 0 |
| AS22126US | DISTRIBION-DALLAS - Distribion Inc | — | — | 0 |
| AS22176US | PCI-ASN - PCI | — | — | 0 |
| AS22199US | MEGAPATH8-US - GTT Americas, LLC | — | — | 0 |
| AS22333US | ABE - AB E-Commerce, LLC | — | — | 0 |