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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 | 23,666 |
| 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 |
| 234 |
| 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 | 4,491 |
| 3.6K |
| — |
| 5 |
| AS206216US | ADVIN-AS Advin Services LLC | 3.6K | 7.4K | 36 |
| AS26394US | CHOA - Children's Healthcare of Atlanta, Inc. | 3.6K | — | 7 |
| AS14693US | BAPTIST-HEALTH-AS - Baptist Health | 3.6K | — | 11 |
| AS11475US | 1WIRE-FIBER - 1Wire Communications, LLC | 3.6K | 4.1K | 7 |
| AS35829US | AUTHS auth-servers, LLC | 3.6K | 786.4K | 10 |
| AS26403US | MADERACOE - Madera County Office of Education | 3.6K | — | 3 |
| AS396292US | EPSILON-EGI - Epsilon Data Management LLC | 3.6K | — | 12 |
| AS2912US | CITI5 - Citigroup Inc. | 3.6K | — | 14 |
| AS19713US | STATE-OF-NH-USA - State of New Hampshire | 3.6K | — | 4 |
| AS19430US | ACXIOM-CORP - Acxiom LLC | 3.6K | — | 5 |
| AS401851US | COSD - County of San Diego | 3.6K | — | 12 |
| AS13690US | AMR - American Medical Response, Inc. | 3.6K | — | 8 |
| AS17117US | RITSNET - RITSnet, Inc. | 3.6K | 1 | 15 |
| AS54455US | MADEIT - MadeIT inc. | 3.6K | 65.5K | 6 |
| AS53571US | PCC-CORP - PRECISION CASTPARTS CORP | 3.6K | — | 14 |
| AS62550US | INOVADATA - Inova Data Solutions, Inc. | 3.6K | — | 6 |
| AS210137US | LEAR-FRA Lear Corporation | 3.6K | — | 5 |
| AS402288US | EEF - Envision EdgeFlow LLC | 3.6K | — | 14 |
| AS395110US | AERODATA - AeroData, Inc. | 3.6K | — | 9 |
| AS397986US | PA-CONVENTION-CENTER - Pennsylvania Convention Center Authority | 3.6K | — | 7 |
| AS11171US | AUTONATION-FTLD - Autonation, Inc | 3.6K | — | 4 |
| AS36136US | ALARMNET - ALARMNET | 3.6K | — | 8 |
| AS36791US | PDXHOSTING - Portland Internet Hosting LLC | 3.6K | 4.4K | 9 |
| AS27615US | HOVRS - Purple Language Services Co. | 3.6K | — | 14 |
| AS63086US | UBER-PROD - Uber Technologies, Inc | 3.6K | — | 11 |
| AS51082US | ISP-A1-Internet SPUZE LLC | 3.6K | 524.5K | 14 |
| AS53577US | URSINUS - Ursinus College | 3.6K | — | 10 |
| AS62705US | SCSB-1 - Spotsylvania County School Board | 3.6K | — | 14 |
| AS19031US | WESCO - CU*Answers, Inc. | 3.6K | — | 11 |
| AS395339US | DONNELLEY-FINANCIAL - Donnelley Financial, LLC. | 3.6K | — | 14 |
| AS55143US | NEXUSTEK-LASASN01 - Nexus Technologies, LLC | 3.6K | — | 7 |
| AS25883US | CITIGROUP - Citigroup Inc. | 3.6K | — | 14 |
| AS402390US | WITL-US-AS - Wisewave | 3.6K | — | 14 |
| AS46786US | IPTRANSIT - IP Transit Inc. | 3.6K | 65.5K | 14 |
| AS19240US | MLCRIF - MeridianLink, Inc. | 3.6K | — | 10 |
| AS19556US | ISOTECH-INC - Isotech, Inc | 3.6K | — | 9 |
| AS46652US | SERVERSTACK-ASN - DigitalOcean, LLC | 3.6K | — | 8 |
| AS2928US | COAT - Burlington Coat Factory Warehouse | 3.6K | — | 7 |
| AS17192US | LEK - LEK Internet Services, Inc. | 3.6K | — | 3 |
| AS393792US | 2600HZ-AS - 2600hz, Inc | 3.6K | — | 10 |
| AS40123US | R2G-2 - Transaction Network Services, Inc. | 3.6K | — | 7 |
| AS401476US | SCNL-1-0001 - Spruce Creek Networks LLC | 3.6K | 256 | 15 |
| AS63152US | CASCADE-COMMUNICATIONS-01 - Cascade Communications Company | 3.6K | — | 6 |
| AS17207US | COLOR-COLL - Colorado College | 3.6K | — | 11 |
| AS11059US | MIFFLIN-COUNTY-WIRELESS - MIFFLIN COUNTY WIRELESS LLC | 3.6K | — | 8 |
| AS10788US | CDW - CDW LLC | 3.6K | — | 7 |