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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. | 211.2M | 21,174 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,241 |
| 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 | 373 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,656 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,940 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,379 |
| 1.3K |
| — |
| 5 |
| AS1225US | NTTA-1225 - NTT America, Inc. | 1.3K | 1 | 3 |
| AS395367US | LWBB-333 - Lightwave Broadband LLC | 1.3K | 65.5K | 6 |
| AS20285US | INFINITE-CAMPUS-MN - Infinite Campus, Incorporated | 1.3K | — | 2 |
| AS2154US | HPINC - HP Inc. | 1.3K | — | 2 |
| AS25960US | PROPEL-CLOUD-01 - PropelCLOUD | 1.3K | — | 3 |
| AS394459US | HOU-QUANTA - QUANTA SERVICES INC | 1.3K | — | 5 |
| AS397686US | C1CX-TX - C1CX | 1.3K | — | 4 |
| AS31867US | SCHWARTZNET - Schwartz Networks Limited Liability Company | 1.3K | 4.1K | 28 |
| AS394325US | SPECTRUM-VOIP - SpectrumVoIP Inc | 1.3K | — | 5 |
| AS22971US | SVHHSTOSF-NET - ST. VINCENT HOSPITAL OF THE HOSPITAL SISTERS OF THE THIRD ORDER OF ST. FRANCIS | 1.3K | — | 3 |
| AS6072US | UNISYS-AS-C - Unisys Corporation | 1.3K | — | 5 |
| AS20443US | VERGETEL-NETWORKS - VergeTel Networks LLC | 1.3K | 256 | 3 |
| AS33427US | WSU-TRI-AS - Washington State University | 1.3K | — | 4 |
| AS396010US | FTC-ASN1 - Franklin Telephone Company, Inc | 1.3K | — | 4 |
| AS3529US | DNIC-AS-03529 - United States Department of Defense (DoD) | 1.3K | — | 5 |
| AS13691US | MCC-EDU - Metropolitan Community College | 1.3K | — | 2 |
| AS19717US | MAINSTREAMDATA-375 - Mainstream Data, Inc. | 1.3K | — | 4 |
| AS36107US | FITCH-NETWORK-NY - FITCH INC. | 1.3K | — | 2 |
| AS54063US | MHHS-AS - Memorial Hermann Health System | 1.3K | — | 5 |
| AS53506US | TASTYWORKS-01 - tastyworks, Inc. | 1.3K | 16 | 3 |
| AS62968US | AS-CMC - Central Michigan Communication, Co. | 1.3K | — | 2 |
| AS31989US | FFH-AS - Fiber Fast Homes, LLC | 1.3K | — | 5 |
| AS30334US | PARK-NATIONAL-CORP - The Park National Corporation | 1.3K | — | 5 |
| AS63435US | MONTEREY-AS-01 - County of Monterey | 1.3K | — | 5 |
| AS27496US | AS27496 - VENETIAN CASINO RESORT, LLC | 1.3K | — | 3 |
| AS64290US | WISP10175 - Server ISP | 1.3K | — | 2 |
| AS62983US | AS-MPA - The Massachusetts Port Authority | 1.3K | — | 5 |
| AS21807US | AETHERIAL-NETWORKS - Aetherial Networks LLC | 1.3K | 256 | 6 |
| AS30664US | ELEMENT - Element Vehicle Management Services | 1.3K | — | 5 |
| AS43755US | NODESDIRECT Nodes Direct Holdings LLC | 1.3K | — | 2 |
| AS399675US | GIGALINX - GigaLinx Communications LLC. | 1.3K | 65.5K | 3 |
| AS134521US | DIALPAD-AS-AP - Dialpad, Inc. | 1.3K | 1.5K | 11 |
| AS54640US | CONEHEALTH - The Moses H. Cone Memorial Hospital | 1.3K | — | 5 |
| AS4366US | GE-AMC - General Electric Company | 1.3K | — | 5 |
| AS62668US | OCG-INTERNET-SERVICES - Optical Communications Group, Inc. | 1.3K | — | 2 |
| AS63299US | PATHWAYS - Pathways Health and Community Support LLC | 1.3K | — | 5 |
| AS401382US | ZENIX-CLOUD-AS1 - Zenix Solutions, LLC | 1.3K | 256 | 3 |
| AS394451US | EHS-AS-001 - Elliot Health System | 1.3K | — | 2 |
| AS31865US | SWKAS - THE STANLEY WORKS | 1.3K | — | 2 |
| AS13974US | OL-ASN - NetCrew | 1.3K | 256 | 3 |
| AS394540US | NETJETS - NETJETS INC | 1.3K | — | 2 |
| AS395487US | ATG-395487 - Accretive Networks | 1.3K | — | 2 |
| AS20066US | MSC-SJ-HQ - Supermicro Computer | 1.3K | — | 5 |
| AS46340US | HR2 - HireRight LLC | 1.3K | — | 5 |
| AS22001US | INVITROGEN - Life Technologies Corp. | 1.3K | — | 4 |
| AS33714US | HBCS-NC-AS1 - Hospital Billing and Collection Service, LTD | 1.3K | — | 2 |