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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. | 211.1M | 21,138 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,244 |
| 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 | 383 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,674 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,951 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,417 |
| 256 |
| 17 |
| 3 |
| AS31821US | AS-RCS - Riverdale Country School | 256 | — | 1 |
| AS26310US | EASLEY-UTILITIES - Easley Combined Utilities | 256 | — | 1 |
| AS19584US | DATACAMO-LOSANGELES - Datacamo, Inc. | 256 | — | 1 |
| AS396506US | BEVAIR-27105 - BEVERAGE AIR CORPORATION | 256 | — | 1 |
| AS32318US | CHSDC - Center for Hellenic Studies | 256 | — | 1 |
| AS17024US | BLUEFURMAINAS - BlueFur | 256 | 1K | 2 |
| AS393326US | EPICGA-DC3-AS - Epic Games Inc. | 256 | — | 1 |
| AS26861US | ROCKLIN-ASN - First Technology Federal Credit Union | 256 | — | 1 |
| AS32366US | THE-BROOKINGS-INSTITUTION-AS1 - The Brookings Institution | 256 | — | 1 |
| AS17101US | POLA-AS - PORT OF LOS ANGELES | 256 | — | 1 |
| AS54308US | RETOUCHUP - RETOUCHUP.COM | 256 | — | 1 |
| AS46201US | COYUBA58 - County of Yuba | 256 | — | 1 |
| AS55100US | GTCNA - The Glenmede Trust Company National Association | 256 | — | 1 |
| AS1813US | DXC-AS1810-AS1815 - DXC US Latin America Corporation | 256 | — | 1 |
| AS393478US | HRBL-WS-INTERNET-BGP - Herbalife International of America, Inc. | 256 | — | 1 |
| AS32434US | IMP-NET - Imperial Network | 256 | 128 | 2 |
| AS395961US | INGLES-MARKETS - INGLES MARKETS Inc. | 256 | — | 1 |
| AS25622US | TSYS-SDC-CONTACT-CENTER-WFH - Global Payments Inc. | 256 | — | 1 |
| AS398548US | MCDUSASN02 - McDonald's Corporation | 256 | — | 1 |
| AS393761US | PINNACLE-BANK-ARENA - West Haymarket Joint Public Agency | 256 | — | 1 |
| AS398176US | JDS - JDS INDUSTRIES, INC | 256 | — | 1 |
| AS53478US | ADS - ADS | 256 | — | 1 |
| AS26417US | SCOPIA-NY - Scopia Fund Management, LLC | 256 | — | 1 |
| AS19912US | SKYPACKET-MCKEAN - SkyPacket | 256 | — | 1 |
| AS40369US | BCI-MIA-1 - BANCO DE CREDITO E INVERSIONES, SA | 256 | — | 1 |
| AS397167US | PHS-NM - Presbyterian Healthcare Services | 256 | — | 1 |
| AS33009US | TKFAST - TkFast Inc | 256 | — | 1 |
| AS26980US | CHURCH-DWIGHT - Church & Dwight Co., Inc. | 256 | — | 1 |
| AS32672US | TTIINC - TTI, Inc. | 256 | — | 1 |
| AS54222US | CITY-OF-CEDAR-PARK - City of Cedar Park | 256 | — | 1 |
| AS13963US | SKYVIEWSAT - Skyview Networks | 256 | — | 1 |
| AS1670US | ANS-UK - Verizon Business | 256 | — | 1 |
| AS46642US | TT-US-1 - TekTera | 256 | 1 | 2 |
| AS27447US | SRZLLPAS - Schulte Roth & Zabel LLP | 256 | — | 1 |
| AS26185US | CLOUDAPT - Cloudapt LLC | 256 | — | 1 |
| AS54332US | CITYOFBOISE - City of Boise | 256 | — | 1 |
| AS3858US | NPPDNET - Nebraska Public Power District | 256 | — | 1 |
| AS7285US | SAGENET - SageNet LLC | 256 | — | 1 |
| AS22779US | JERICH-EU - Jerich USA Inc. | 256 | — | 1 |
| AS40559US | CROSSCOM - CROSSCOM NATIONAL, LLC | 256 | — | 1 |
| AS402514US | CHRISTHOLM - Christholm | 256 | — | 1 |
| AS23145US | CALL-HOME-EDGE-CLOUD-FLARE - IBM | 256 | 1 | 2 |
| AS400019US | AS-FWDC-RM-817 - Ruoff Mortgage | 256 | — | 1 |
| AS401433US | TOWER-33-AS-01 - Tower 33 Inc. | 256 | — | 1 |
| AS19352US | NACHA-HQ - NACHA The Electronic Payments Association | 256 | — | 1 |
| AS25747US | EPICSYS-DR - Epic Systems Corporation | 256 | — | 1 |