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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 |
| 1K |
| — |
| 4 |
| AS7011US | FRONTIER-AND-CITIZENS - Frontier Communications of America, Inc. | 1K | — | 4 |
| AS14389US | CASHEXPRESS - Cash Express, LLC | 1K | — | 1 |
| AS20129US | MAS-NJDC - Mizuho Americas Services LLC | 1K | — | 4 |
| AS23413US | VM-AW-US - Omnissa, LLC | 1K | — | 4 |
| AS20284US | INETUASN1 - Flexential iNETu Corp. | 1K | — | 3 |
| AS400430US | MOUNDSVIEW-ASN - Multi-Tech Systems, Inc | 1K | — | 3 |
| AS62296US | vitalng Vital Network Group, LLC | 1K | 196.6K | 7 |
| AS53293US | BGP-SAS-01 - Samsung Austin Semiconductor LLC | 1K | — | 4 |
| AS133144US | M8X8INC-AS-AP - 8x8, Inc. | 1K | — | 4 |
| AS1420US | STL-C9D - STL OFFICE SOLUTIONS, INC. | 1K | — | 1 |
| AS399239US | HILLTOWN-NETWORKS - Hilltown Networks | 1K | — | 4 |
| AS4894US | COANAHEIM - City of Anaheim | 1K | — | 1 |
| AS15190US | CTS-LANGUAGELINK - CTS LanguageLink | 1K | — | 3 |
| AS63386US | THEGEO-NET - The Greater Eastern Oregon Network, LLC | 1K | 4.1K | 4 |
| AS395047US | ARTIX-NET - Artix Networks LLC | 1K | 272 | 6 |
| AS401332US | TRIPLEBIT - Triplebit | 1K | 131 | 8 |
| AS20430US | AXCESS-FINANCIAL - Axcess Financial Services, Inc. | 1K | — | 1 |
| AS22761US | PSYCHO-SOLUTIONS-LLC - Psycho Solutions LLC | 1K | — | 4 |
| AS395931US | ACECLOUD-01 - Real Time Cloud Services LLC | 1K | 4.1K | 2 |
| AS46133US | ET-ASN2 - Elite Telecom, Inc | 1K | — | 2 |
| AS11980US | BDO-USA-LLP - BDO USA | 1K | — | 2 |
| AS394865US | TPU - Tacoma Public Utilities | 1K | — | 3 |
| AS55121US | IQVOICE - InterQoS Online, Inc. | 1K | — | 1 |
| AS21835US | SCARSDALE-SECURITY-SYSTEMS - Scarsdale Security Systems, Inc. | 1K | 65.5K | 5 |
| AS33134US | KTCFV-USA - Kingston Technology Company, Inc. | 1K | — | 4 |
| AS22871US | HHSF-IN - Heartland Rural Electric Membership Corporation | 1K | — | 4 |
| AS27465US | WIFINITY-ASN-01 - Net Vision Communications, LLC | 1K | — | 3 |
| AS23142US | NEOGENOMICS-ASN - NeoGenomics | 1K | — | 3 |
| AS55175US | CLOUDBURST - RainWorx | 1K | — | 1 |
| AS15041US | ETRN-MKC - ETRN.com, Inc. | 1K | — | 4 |
| AS54710US | INNOUT - IN-N-OUT BURGERS | 1K | — | 4 |
| AS399224US | PERATON-CORE - PERATON INC. | 1K | 65.5K | 5 |
| AS32336US | SPRINGFIELD-COLLEGE-NET - Springfield College | 1K | — | 3 |
| AS17164US | CENTRACAREHEALTHSYSTEM - CentraCare Health | 1K | — | 4 |
| AS400406US | KMB2 - Kimberly-Clark Corporation | 1K | — | 3 |
| AS19245US | HOOPA-VALLEY-TRIBE - Hoopa Valley Public Utilities District | 1K | — | 1 |
| AS393415US | LITTNET - LITTLER MENDELSON, P.C. | 1K | — | 4 |
| AS23199US | COMDATA-NETWORK - Comdata,INC | 1K | — | 4 |
| AS63362US | SMULE - Smule Inc. | 1K | — | 3 |
| AS55231US | 09172010 - Stratify IT, Inc. | 1K | — | 1 |
| AS25765US | CQGNET-NEWYORK - CQG, Inc. | 1K | — | 4 |
| AS26471US | STIFEL - Stifel, Nicolaus & C | 1K | — | 4 |
| AS33673US | NE-AS1 - MCN Online, LLC | 1K | — | 1 |
| AS399790US | CHOPTANK-FIBER-LLC - Choptank Fiber, LLC. | 1K | 4.1K | 5 |
| AS207088US | ADOARD ADOARD GLOBAL REACH LLC | 1K | — | 1 |
| AS27313US | SPENCER-STUART - Spencer Stuart | 1K | — | 4 |