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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) | 227.4M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 217.9M | 25,270 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,323 |
| 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.
32,193 autonomous systems registered to United States. Click an AS for detail.
| 72.9M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,900 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.9M | 2,009 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.5M | 4,230 |
| 4.9K |
| — |
| 19 |
| AS2535US | BP - BP America, Inc. | 4.9K | — | 13 |
| AS19324US | DOSARREST - Dosarrest Internet Security LTD | 4.9K | 2 | 20 |
| AS55102US | NRG-NS-2 - NRG Energy, Inc. | 4.9K | — | 9 |
| AS150717US | DEERECOMPANY-AS-AP - Deere & Company | 4.9K | — | 4 |
| AS18731US | CITYSIDE-01 - Cityside Fiber | 4.9K | 131.1K | 7 |
| AS11598US | RECOL-CT - Cloudsmart | 4.9K | 65.5K | 7 |
| AS36306US | STANFORD-HOSPITAL - Stanford Hospital and Clinics | 4.9K | — | 14 |
| AS32135US | SAKURA-EYEBALL - SAKURA LTD. | 4.9K | — | 19 |
| AS543US | HP-POLY - HP Inc. | 4.9K | — | 4 |
| AS27020US | PRIMET-INET-AS - Prime Therapeutics LLC | 4.9K | — | 11 |
| AS3565US | PRISMA-HEALTH - Prisma Health | 4.9K | — | 16 |
| AS393301US | STJOHNTELCO - ST. JOHN CO-OPERATIVE TELEPHONE AND TELEGRAPH COMPANY | 4.9K | 65.5K | 10 |
| AS7352US | WECOM-INC - WECOM LLC | 4.9K | 86K | 18 |
| AS23367US | AS-ADN - Adaptive Data Networks, LLC | 4.9K | 65.5K | 11 |
| AS20200US | DIGITAL-LAYER-APAC - Hongshin, Inc. | 4.9K | 65.5K | 14 |
| AS10780US | PURE-STORAGE - Pure Storage, INC. | 4.9K | 1 | 20 |
| AS33059US | MOMENTUM33059 - Momentum Telecom, Inc. | 4.9K | 8 | 26 |
| AS204229US | Global_Router Global Router LLC | 4.9K | — | 8 |
| AS401742US | SERVEROPTIMA - ServerOptima | 4.9K | 4 | 23 |
| AS396151US | STEWARDHEALTHCARE - Steward Health Care System LLC | 4.9K | — | 18 |
| AS54355US | MULTCO - NETWORK SERVICES | 4.9K | — | 9 |
| AS62724US | NWOCA-AS - Northwest Ohio Computer Association | 4.9K | — | 6 |
| AS21757US | HTC-COMM - HTC Communications | 4.9K | 65.5K | 9 |
| AS33574US | RIVRTECH - LREMC Technologies, L.L.C. | 4.9K | 65.5K | 8 |
| AS609US | EY-AS-L - Ernst & Young LLP | 4.9K | 4.1K | 5 |
| AS4179US | CITY-OF-LA - City of Los Angeles | 4.9K | — | 19 |
| AS394957US | ZADARA-01 - Zadara Storage, Inc. | 4.9K | — | 17 |
| AS12087US | SALSGIVER - Salsgiver, Inc. | 4.9K | — | 19 |
| AS4283US | CENTURYLINK-TSDS-LSVG - CenturyLink Communications, LLC | 4.9K | — | 3 |
| AS20081US | NET2ATLANTA - NET2ATLANTA.COM LLC | 4.9K | — | 12 |
| AS1339US | ANSBB-ASNNET-1 - Verizon Business | 4.9K | 2 | 14 |
| AS16645US | EPIQSYSTEMS - EPIQ Systems, Inc | 4.9K | — | 12 |
| AS29787US | WEBFORCE - Web Force Systems | 4.9K | — | 16 |
| AS19524US | COMERICA-INC - Comerica Incorporated | 4.9K | — | 19 |
| AS20018US | MVT-AS - Moapa Valley Telephone Company | 4.9K | 4.1K | 10 |
| AS15347US | 15347 - IBEX Global Solutions | 4.9K | — | 11 |
| AS40139US | JACKSON-TECHNICAL - Jackson Technical LLC | 4.9K | — | 17 |
| AS397797US | CITYOFMARSHALL-01 - City of Marshall | 4.9K | 65.5K | 9 |
| AS32845US | TEL-STAR - Tel-Star Communications, Inc | 4.9K | — | 17 |
| AS14898US | ODINTERNET - Office Depot, LLC | 4.9K | — | 18 |
| AS31785US | HBS-AS - Heartland Business Systems | 4.9K | — | 4 |
| AS5091US | STRIPE - Stripe, Inc. | 4.9K | 1 | 20 |
| AS54183US | PEER39-ASN - Peer39 Inc | 4.9K | — | 15 |
| AS397563US | ADEOXTECH - ADEOX | 4.9K | — | 16 |
| AS14365US | ADOBE-NET - Adobe Systems Inc. | 4.9K | — | 19 |
| AS17339US | SAFELITE - Safelite Glass Corp. | 4.9K | — | 4 |