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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) | 227.5M | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218.2M | 25,263 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 641 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,336 |
| 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.
32,247 autonomous systems registered to United States. Click an AS for detail.
| 72.9M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,900 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,004 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,350 |
| 1.3K |
| — |
| 4 |
| AS63027US | LANICOM-NET - Lanicom, LLC | 1.3K | 4.1K | 6 |
| AS54572US | AS-ASN-2 - Nasdaq, Inc. | 1.3K | — | 3 |
| AS14649US | COSI-US - Contengent Online Systems Inc | 1.3K | — | 2 |
| AS6405US | AIN - American Information Network | 1.3K | 1K | 5 |
| AS399586US | OKALOOSA-COUNTY-FL - The County of Okaloosa | 1.3K | — | 5 |
| AS397686US | C1CX-TX - C1CX | 1.3K | — | 4 |
| AS546US | PARSONS-PGS-1 - Parsons Corporation | 1.3K | — | 5 |
| AS47069US | USKVM - USKVM LLC | 1.3K | 65.5K | 3 |
| AS30664US | ELEMENT - Element Vehicle Management Services | 1.3K | — | 5 |
| AS1326US | ANSBB-ASNNET-1 - Verizon Business | 1.3K | — | 5 |
| AS393506US | MYCOMUS-AS - MY.COM US, INC. | 1.3K | — | 4 |
| AS17043US | AERIS-SJC-BGPNET - Aeris Communications, Inc. | 1.3K | — | 5 |
| AS16754US | TTL-31 - TRILLIUM TRADING LLC | 1.3K | — | 4 |
| AS32924US | GREENWAY-HEALTH - Greenway Health, LLC | 1.3K | — | 4 |
| AS395367US | LWBB-333 - Lightwave Broadband LLC | 1.3K | 65.5K | 6 |
| AS397725US | JNR-ELECTRONICS-1 - J AND R ELECTRONICS, INC. | 1.3K | — | 2 |
| AS14676US | REGUS - Regus Business Centre, LLC | 1.3K | — | 5 |
| AS394325US | SPECTRUM-VOIP - SpectrumVoIP Inc | 1.3K | — | 5 |
| AS54063US | MHHS-AS - Memorial Hermann Health System | 1.3K | — | 5 |
| AS31867US | SCHWARTZNET - Schwartz Networks Limited Liability Company | 1.3K | 4.1K | 27 |
| AS44324US | MOEDOVE-AS MoeDove LLC | 1.3K | 19.2K | 36 |
| AS393247US | PARKVIEW-HEALTH - Parkview Hospital | 1.3K | — | 2 |
| AS13673US | FAIRPO-3 - Fidium | 1.3K | — | 5 |
| AS36857US | FREUDE - Freudenberg-NOK General Parternership | 1.3K | — | 2 |
| AS17037US | GOINET - goINet, Inc. | 1.3K | — | 5 |
| AS53616US | ASYMPTOTE - ASYMPTOTE NETWORK, LLC | 1.3K | — | 2 |
| AS25960US | PROPEL-CLOUD-01 - PropelCLOUD | 1.3K | — | 3 |
| AS33296US | PIEDMONT-BROADBAND - Piedmont Broadband Corporation | 1.3K | 4.1K | 6 |
| AS54566US | SERVIKUS - Servikus LLC | 1.3K | 256 | 3 |
| AS7915US | DAYTONA-STATE-COLLEGE - Daytona State College Inc | 1.3K | — | 5 |
| AS31772US | FCSA-AS-2 - Farm Credit Services of America | 1.3K | — | 3 |
| AS22971US | SVHHSTOSF-NET - ST. VINCENT HOSPITAL OF THE HOSPITAL SISTERS OF THE THIRD ORDER OF ST. FRANCIS | 1.3K | — | 3 |
| AS54420US | COCC-ISP1 - COCC | 1.3K | — | 5 |
| AS54819US | NETDIVERSE-A - NetDiverse, LLC | 1.3K | — | 5 |
| AS19231US | NBCUNI - NBCUniversal | 1.3K | — | 5 |
| AS33331US | VALIDUSA1 - Valid USA | 1.3K | — | 2 |
| AS14711US | BRKTOOLS - INGERSOLL CUTTING TOOL COMPANY | 1.3K | — | 4 |
| AS36088US | YAHOO-BCST-AC2 - Yahoo Holdings Inc. | 1.3K | 1 | 6 |
| AS29901US | MECK-COUNTY-INET - Mecklenburg County, NC | 1.3K | — | 2 |
| AS29833US | MEDICAL-INFORMATICS-ENGINEERING - MEDICAL INFORMATICS ENGINEERING | 1.3K | — | 5 |
| AS13580US | SOUTHERN-NETWORK-SERVICES - Parish Broadband | 1.3K | 65.5K | 3 |
| AS33248US | COE-AS - City of Evanston, Illinois | 1.3K | — | 5 |
| AS20091US | MARTINSVILLE-VA - City of Martinsville, VA | 1.3K | — | 5 |
| AS3073US | CITI7 - Citigroup Inc. | 1.3K | — | 5 |
| AS46407US | AS-VULTR3 - The Constant Company, LLC | 1.3K | 3 | 7 |
| AS13916US | PROOFPOINT-UT7 - Proofpoint, Inc. | 1.3K | 3 | 7 |