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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. | 210.9M | 21,017 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,219 |
| 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 |
| 228 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 368 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 48M | 3,585 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,932 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,534 |
| 6.9K |
| — |
| 13 |
| AS29973US | CLICKACTION - DATA AXLE, INC | 6.9K | — | 4 |
| AS3909US | CENTURYLINK-LEGACY-QWEST-VDOC - CenturyLink Communications, LLC | 6.9K | — | 5 |
| AS15211US | SQUARE - Square, Inc. | 6.9K | 65.6K | 16 |
| AS25667US | HOME-SHOPPING-NETWORK - Home Shopping Network | 6.9K | — | 13 |
| AS40405US | BRAZORIA-INET - Brazoria I-net | 6.9K | 65.5K | 7 |
| AS33668US | CMCS - Comcast Cable Communications, LLC | 6.9K | 69 | 96 |
| AS23486US | NETSPAN - Foremost Telecommunications | 6.9K | — | 6 |
| AS20101US | MICHWAVE - Michwave Technologies, Inc. | 6.9K | — | 12 |
| AS32003US | LITEWIRE-EV - LiteWire Internet Services, Inc. | 6.9K | — | 9 |
| AS397635US | PATHLINE-CAMPUS - Synopsys Inc. | 6.9K | — | 16 |
| AS399130US | ISPWIFI - Ispwifi | 6.9K | — | 9 |
| AS400469US | CLAVERACK-COMMUNICATIONS-ASN - CLAVERACK COMMUNICATIONS LLC | 6.9K | 65.5K | 26 |
| AS16391US | CELITO-1 - Celito Communications, LLC | 6.9K | 65.5K | 9 |
| AS26651US | CAREFUSION-AS - CareFusion Corporation | 6.9K | — | 27 |
| AS33166US | BFS-49-33166 - Broadridge Financial Solutions, Inc. | 6.9K | — | 5 |
| AS16843US | CELLTEX-NETWORKS - Celltex Networks, LLC | 6.9K | 65.5K | 16 |
| AS17394US | NETAPP-AS-1 - NetApp, Inc. | 6.9K | 3 | 12 |
| AS36243US | BPS-NETWORKS - BPS Networks | 6.9K | 65.5K | 9 |
| AS33522US | CPANEL-INC - cPanel, LLC. | 6.9K | 3 | 8 |
| AS32432US | COFAN - Colleges of the Fenway, Inc. | 6.9K | — | 27 |
| AS22098US | CAPGROUP-NA - The Capital Group Companies, Inc. | 6.9K | 1 | 22 |
| AS19404US | QUEST - Quest | 6.9K | — | 18 |
| AS54934US | JC-39-AS - JEFFERSON CO. CABLE, INC. | 6.9K | 1 | 15 |
| AS398778US | APTITUDE-INTERNET - Aptitude Internet Solutions | 6.9K | 65.5K | 21 |
| AS21632US | CYBERNET1 - Cybernet1 | 6.9K | — | 12 |
| AS20464US | HP-POLY - HP Inc. | 6.9K | 1 | 26 |
| AS31747US | BLACKROCK-FINANCIAL-MANAGEMENT-2 - BlackRock Financial Management, Inc. | 6.9K | — | 26 |
| AS19398US | TENET-HEALTHCARE-ASN-01 - Tenet HealthSystem Medical, Inc. | 6.9K | — | 11 |
| AS395866US | FMTI-BBR-RT4743 - Fort Mojave Television, Inc. | 6.9K | 4.1K | 12 |
| AS46996US | NYCHHC - New York City Health & Hospitals Corporation | 6.9K | — | 13 |
| AS33748US | DSCI - DSCI Corporation | 6.9K | — | 27 |
| AS13380US | ASN-CUST - Zix Corporation | 6.9K | 2 | 8 |
| AS401881US | CLOUVIDER - Clouvider, Inc. | 6.9K | — | 27 |
| AS30614US | DELL-BLK - Dell, Inc. | 6.9K | 16 | 19 |
| AS10461US | EZE-CASTLE-SOFTWARE-LLC - Eze Castle Software LLC | 6.9K | — | 15 |
| AS16739US | MIDCO-NET-INV - Midcontinent Communications | 6.9K | — | 7 |
| AS36131US | IMO - PageBites, Inc. | 6.9K | — | 27 |
| AS399275US | SOLID - Solid Systems LLC | 6.9K | 15 | 42 |
| AS25813US | EXELA-25813 - HOV Services, Inc. | 6.9K | — | 17 |
| AS14991US | IL2K - ElkhartNet, Inc | 6.9K | — | 7 |
| AS19400US | SPX-FLOW-AS - SPX Flow Inc. | 6.9K | — | 13 |
| AS27569US | GVII - Grand Valley Internet | 6.9K | — | 9 |
| AS63039US | USMOASN - Spok Inc. | 6.9K | — | 19 |
| AS400175US | MICROTRONIX-ESOLUTIONS - Microtronix ESolutions, LLC | 6.9K | 6.7K | 72 |
| AS25627US | BTS-USA - Business Telecommunications Services Inc | 6.9K | — | 15 |
| AS46154US | FMTJESUP - Farmers Mutual Telephone Company | 6.9K | — | 4 |