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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 | 21,163 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,248 |
| 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 | 398 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,712 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,958 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,299 |
| — |
| — |
| 0 |
| AS53716US | NATIONAL-TRANSPORTATION-SAFETY-BOARD - National Transporatation Safety Board | — | — | 0 |
| AS53717US | MULTIPLY-1337AS - One Eleven | — | — | 0 |
| AS53804US | ACTIVE-ASN1 - Active Network LLC | — | — | 0 |
| AS53842US | WANAWARE - WanAware, Inc | — | — | 0 |
| AS53852US | TIMBERLANDBANK - Timberland Bank | — | — | 0 |
| AS53935US | ELEMENTISGLOBAL - Elementis | — | — | 0 |
| AS53954US | NHA-ASN-01 - National Heritage Academies | — | — | 0 |
| AS54028US | CARROLLENTERPRISES - SMALL BUSINESS SERVICE BUREAU | — | — | 0 |
| AS54029US | BTN-ACCESS - Big Ten Network, LLC | — | — | 0 |
| AS54188US | HLIOP-ASN - Maxion Wheels U.S.A. LLC | — | — | 0 |
| AS54272US | MEC-1 - Meridian Enterprises Corporation | — | — | 0 |
| AS54284US | GIGSKY - GigSky Mobile LLC | — | — | 0 |
| AS54534US | TACHB-ASN1 - Trans American Custom House Brokers, Inc. | — | — | 0 |
| AS54637US | SIMPLII-AS - Simplii LLC | — | — | 0 |
| AS54644US | TEL-LINGUA-NEUSTAR - Tel-Lingua LLC | — | — | 0 |
| AS54758US | OBXFC - OtterBox | — | — | 0 |
| AS54863US | PCBP-SAC24 - Pacific Coast Companies, Inc. | — | — | 0 |
| AS54917US | LAKESPC - Lakes PC Help, LLC | — | — | 0 |
| AS54992US | NEXTFINANCIAL - Next Financial | — | — | 0 |
| AS55023US | GOOGLE-CLOUD - Google LLC | — | — | 0 |
| AS55058US | BUR-USOPS-01 - Burroughs, Inc. | — | — | 0 |
| AS55071US | IMPREZZIO-SPK - Imprezzio Inc | — | — | 0 |
| AS55135US | HPDF-LBNL - High Performance Data Facility | — | — | 0 |
| AS55177US | REDTECT - Red Tect LLC | — | — | 0 |
| AS55202US | PUB-AAWS-ASN - Alcoholics Anonymous World Services, Inc | — | — | 0 |
| AS55238US | KMCPHX - PING, INC. | — | — | 0 |
| AS60939US | ASN-FIBREBAY Fibrebay Network LLC | — | — | 0 |
| AS62496US | ARVIG-62496 - Arvig Enterprises Inc. | — | — | 0 |
| AS62527US | BALTLIFE-AS-MAIN - The Baltimore Life Companies | — | — | 0 |
| AS62638US | MARRIOTT-HDQ-01 - Marriott International, Inc. | — | — | 0 |
| AS62727US | PLEXICOMM - Plexicomm, LLC | — | — | 0 |
| AS62764US | ICS-OAK-BROOK-HQ - Inland Computer Services Inc | — | — | 0 |
| AS62776US | HEALTH-DIALOG - Health Dialog Services Corporation | — | — | 0 |
| AS62870US | PMG - Princeton Medical Group | — | — | 0 |
| AS63080US | WIX - WILLAMETTE INTERNET EXCHANGE INC | — | — | 0 |
| AS63181US | SJH-NH - St. Joseph Hospital | — | — | 0 |
| AS63245US | TRAFBIZ-01 - Microsoft Corporation | — | — | 0 |
| AS63262US | LBUS-AS - LayerBridge | — | — | 0 |
| AS63373US | NFI-ASN-01 - Net Friends, Inc. | — | — | 0 |
| AS63425US | GROUPONE-VA1 - Group One Consulting, Inc. | — | — | 0 |
| AS64263US | RGNCM - R. G. Niederhoffer Capital Management, Inc. | — | — | 0 |
| AS131477US | PSC-594-131477 - Prime Security Corp. | — | — | 0 |
| AS197598US | VIRTUEON Virtueon Solutions LLC | — | — | 0 |
| AS198383US | private-network-customer Travchis LLC | — | — | 0 |
| AS198998US | TimKevin Tim Kevin | — | — | 0 |
| AS199765US | FREECONNECT EEST Networks LLC | — | — | 0 |