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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 |
| — |
| — |
| 0 |
| AS62916US | WNL - WestNet Link, Inc | — | — | 0 |
| AS63082US | RRA-SPACE - Russell Reynolds Associates, Inc. | — | — | 0 |
| AS63173US | AS-NETROUTING - Netrouting, Inc. | — | — | 0 |
| AS63192US | ATL-F-TERM-ADMIN - TBI Airport Management, Inc. | — | — | 0 |
| AS63246US | INTEGRA-3210-DATACENTER-01 - IntegraColor, Ltd. | — | — | 0 |
| AS63358US | ACS-PUBLIC - Ascensus College Savings, Inc | — | — | 0 |
| AS132574US | AI-1720-132574 - Alpha InfoLab Inc | — | — | 0 |
| AS133374US | VERSANETWORKSINC-AS-AP - Versa Networks Inc | — | — | 0 |
| AS136541US | OGILVY-AS-AP - The Ogilvy Group, LLC. | — | — | 0 |
| AS149646US | ISC-AS-AP - Internet Systems Consortium | — | — | 0 |
| AS199628US | truehostcloud Truehost Cloud LLC | — | — | 0 |
| AS211834US | ISC-BER1 Internet Systems Consortium Inc. | — | — | 0 |
| AS213621US | NamePack NamePack LLC | — | — | 0 |
| AS215233US | ISC-BEG1 Internet Systems Consortium Inc. | — | — | 0 |
| AS216440US | HOOP7NETWORK-AS 7Hoop Network Telecom LLC | — | — | 0 |
| AS393243US | SSP-47 - SKIN SPECIALISTS PC | — | — | 0 |
| AS393270US | AS-BCHHC - Beatrice Community Hospital and Health Center, Inc. | — | — | 0 |
| AS393318US | SAASPLAZA-ASN-AMER - SaaSplaza, INC | — | — | 0 |
| AS393357US | SANJOSE-ENV - ENV | — | — | 0 |
| AS393391US | SSCTEC-YKT - SS&C Technologies, Inc. | — | — | 0 |
| AS393477US | TCC-ASN1 - The Corvallis Clinic | — | — | 0 |
| AS393495US | COLBY-SAWYER - Colby-Sawyer College | — | — | 0 |
| AS393593US | AS-LRS - Logos Bible Software | — | — | 0 |
| AS393624US | DATA-PATH-INC - Data Path, Inc. | — | — | 0 |
| AS393644US | IT-HELP-NETWORK - IT HELP LLC | — | — | 0 |
| AS393660US | LIBERA-ASN1 - Libera Inc. | — | — | 0 |
| AS393664US | NCQA - National Committee for Quality Assurance | — | — | 0 |
| AS393692US | EA-KITCHENER - Electronic Arts, Inc. | — | — | 0 |
| AS393734US | DESRES - D. E. Shaw Research, LLC. | — | — | 0 |
| AS393754US | APOG-PITT-GREENSBURG - Apogee Telecom Inc. | — | — | 0 |
| AS393768US | SIGHTLIFE - SightLife | — | — | 0 |
| AS393823US | ARAMARK-EQX-EAST - ARAMARK | — | — | 0 |
| AS393867US | WFCU-36 - WeStreet Federal Credit Union | — | — | 0 |
| AS393881US | JW - Justworks, Inc. | — | — | 0 |
| AS393903US | TORBIT - Wal-Mart Stores, Inc. | — | — | 0 |
| AS393926US | LZCUSD95 - LAKE ZURICH CUSD 95 | — | — | 0 |
| AS393934US | STU-AS - St. Thomas University | — | — | 0 |
| AS393976US | FUJ-HYBRIDIT-K5 - Fujitsu North America, Inc. | — | — | 0 |
| AS394030US | BITRATE-NETWORKS - Bitrate | — | — | 0 |
| AS394033US | SPB-AS - Squire Patton Boggs | — | — | 0 |
| AS394043US | CVFBLPM - DECOLAR.COM INC | — | — | 0 |
| AS394100US | SAFELINK-EI - Anthem Broadband | — | — | 0 |
| AS394166US | GSWC-GGO - Golden State Water Compay | — | — | 0 |
| AS394168US | VIRACOR-IBT - Viracor-IBT Laboratories, Inc | — | — | 0 |
| AS394189US | ARUBAEDGE - ARUBA NETWORKS, INC. | — | — | 0 |
| AS394262US | GLWD-AS - God's Love We Deliver, Inc. | — | — | 0 |