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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 | 24,555 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,303 |
| 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.
32,168 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| 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 | 1,995 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,354 |
| 512 |
| — |
| 2 |
| AS21930US | INFORMATICA - Informatica LLC | 512 | — | 2 |
| AS393323US | WATERFURNACE - Waterfurnace International, Inc | 512 | — | 2 |
| AS397292US | GIGABEAM-INTERNET - Symplified Technologies LLC | 512 | — | 1 |
| AS22713US | CAC-HQ2 - Credit Acceptance Corporation | 512 | — | 1 |
| AS63166US | TGNA-WHAS - TEGNA Inc. | 512 | — | 2 |
| AS29972US | MOREHOUSEMEDICAL - Morehouse School of Medicine | 512 | — | 2 |
| AS19656US | LOCAL-SECURE-DATA - Lehigh Secure Data LLC | 512 | 65.5K | 3 |
| AS397170US | COMPASS-FOUNDATION - COMPASS FOUNDATION LLC | 512 | 768 | 5 |
| AS22276US | BANKUNITED - BankUnited NA | 512 | — | 2 |
| AS399090US | GINKGOBIOWORKS - Ginkgo Bioworks, Inc. | 512 | — | 2 |
| AS54228US | INVTECHNOLOGIES - Invision Technologies, LLC | 512 | — | 2 |
| AS62996US | OMR-01 - Unwin Company | 512 | — | 1 |
| AS18920US | HEI - Hawaiian Electric Industries, Inc. | 512 | — | 2 |
| AS396291US | NCH-HEALTHCARE-SYSTEM - NCH Healthcare System, Inc. | 512 | — | 2 |
| AS18956US | LLAMA-NETWORKS-01 - Llama Networks LLC | 512 | 2 | 4 |
| AS13814US | RCB1936 - RCB Bank | 512 | — | 2 |
| AS40711US | INTERACTIVE-CHIC - Interactive Brokers LLC | 512 | — | 2 |
| AS5728US | WORLDNET1 - AT&T Enterprises, LLC | 512 | — | 1 |
| AS398000US | TGNA-WTIC - TEGNA Inc. | 512 | — | 2 |
| AS393853US | ICS - Digital Network Access Communications, INC | 512 | — | 1 |
| AS62520US | EMASON-ASN - eMASON, Inc | 512 | — | 2 |
| AS399867US | FREEDOM-NETWORKS - Freedom Networks LLC | 512 | — | 2 |
| AS396205US | ALTRUISTA - Altruista Health, Inc | 512 | — | 2 |
| AS12055US | CLEARBEARING-00 - Clearbearing Inc. | 512 | 1 | 3 |
| AS25688US | CARTERS - The William Carter Company | 512 | — | 2 |
| AS394803US | ANSI-ASN - American National Standards Institute | 512 | — | 2 |
| AS46999US | CREWSBANKCORP - Crews Banking Corporation | 512 | — | 2 |
| AS396089US | NEXCUS - NEXCUS TECHNOLOGIES LLC | 512 | — | 2 |
| AS64279US | TFSLAOC - Third Federal Savings and Loan Association of Cleveland | 512 | — | 2 |
| AS397956US | NETWORK-DATA-SYSTEMS - Network Data Systems, Inc | 512 | 4.1K | 3 |
| AS1015US | SERVERSTARTERHOST - Server Starter Host LLC | 512 | 256 | 3 |
| AS396976US | BYNUM-DR-01 - AOD Federal Credit Union | 512 | — | 2 |
| AS36171US | STRASMORE - Strasmore, Inc. | 512 | 1 | 3 |
| AS33402US | BULLITT-COMMUNICATIONS - Bullitt Communications | 512 | 4.1K | 2 |
| AS63249US | RSFH - Roper Saint Francis Healthcare | 512 | — | 2 |
| AS11379US | WHG11379 - Wyndham Hotel Group, LLC | 512 | — | 2 |
| AS12096US | AMPNET-ASN - AMP Telephones | 512 | — | 2 |
| AS397277US | NAUAS - NAU Country Insurance Company | 512 | 2 | 4 |
| AS393725US | VALENCEHEALTH - Valence Health, Inc. | 512 | — | 2 |
| AS13725US | NOBULL-NETWORKS - Nobull Networks LLC | 512 | 2 | 3 |
| AS396875US | CCINC - Consumer Cellular Inc. | 512 | — | 2 |
| AS396101US | NETCLOUD-ASN - Netcloud Services | 512 | 1 | 3 |
| AS400552US | ODYACAD-ASN - Odyssey Academy, Inc. | 512 | — | 2 |
| AS393719US | FIBERLINK - FiberLink | 512 | 65.8K | 4 |
| AS22588US | DOMIN-AS - DOMINION ENTERPRISES | 512 | — | 2 |
| AS397887US | HOSTMYCALLS-01 - HostMyCalls | 512 | — | 2 |