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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218.1M | 26,023 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,308 |
| 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.
32,233 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,893 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,006 |
| AS701US | UUNET - Verizon Business | 43.6M | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,360 |
| — |
| — |
| 0 |
| AS16948US | STRATUSWAVE - CityNet | — | — | 0 |
| AS16961US | HIPCS-DALLAS-SERVER-OFFICE - AT&T Enterprises, LLC | — | — | 0 |
| AS17013US | WILMINGTON-COLLEGE-OH - Wilmington College | — | — | 0 |
| AS17027US | PEAK10ATL - Flexential Corp. | — | — | 0 |
| AS17041US | AS-LRCOMM-ORIG - L.R. Communications, Inc. | — | — | 0 |
| AS17062US | HPINC - HP Inc. | — | — | 0 |
| AS17154US | ZAYO-CAN-17154 - Zayo Bandwidth | — | — | 0 |
| AS17334US | AKAM-SOS-AS17334 - Akamai Technologies, Inc. | — | — | 0 |
| AS17346US | BITNIK - Bitnik, Inc | — | — | 0 |
| AS18514US | MDCH-CRP-ASN - M.D.C. Holdings, Inc. | — | — | 0 |
| AS18595US | FPC-ASN - Ogden News Publishing of Ohio, Inc | — | — | 0 |
| AS18597US | RVBD - RIVERBED TECHNOLOGY, INC. | — | — | 0 |
| AS18626US | NET-IDEO - IDEO Product Development | — | — | 0 |
| AS18714US | RSNAK-01 - Rock Solid Networks of Alaska LLC | — | — | 0 |
| AS18740US | JEROMES-FURNITURE - Jerome's Furniture | — | — | 0 |
| AS18810US | EHI-PRODUCTION - eHealthInsurance Services Inc. | — | — | 0 |
| AS18871US | AS18871 - Indiana Printing and Publishing Company, Inc. | — | — | 0 |
| AS18906US | CONCORD-AS - Concord Management Ltd | — | — | 0 |
| AS18915US | MONKEY-US-01 - Surveymonkey Inc. | — | — | 0 |
| AS18963US | MIDLAND-ISD-TX-01 - MIDLAND ISD | — | — | 0 |
| AS18990US | AIRBAND-DALLAS - Airband Communications, Inc | — | — | 0 |
| AS18991US | CTC-VIS-AS - Connecticut Children's Medical Center | — | — | 0 |
| AS19003US | IHSENERGY-CALGARY - IHS Global, Inc. | — | — | 0 |
| AS19007US | COG-INET-01 - City of Goodyear | — | — | 0 |
| AS19028US | XO-ASN10 - Verizon Business | — | — | 0 |
| AS19030US | HMH-19030 - HMH | — | — | 0 |
| AS19199US | PANAMSAT-ATL - PanAmSat Corporation | — | — | 0 |
| AS19290US | SUNGARDAS-19290 - BroadbandONE, LLC | — | — | 0 |
| AS19300US | KUBRA-USA - Kubra | — | — | 0 |
| AS19301US | CERIDIAN-TAX - CERIDIAN TAX SERVICE, INC | — | — | 0 |
| AS19392US | JCOM - J2 Cloud Services, LLC | — | — | 0 |
| AS19448US | GOOGLE-FIBER - Google Fiber Inc. | — | — | 0 |
| AS19466US | EZ-PING-ASN - EZ Ping Networks Inc | — | — | 0 |
| AS19487US | SBCASI-AKRON-OH-COVLIL - Wireless Maritime Services, LLC | — | — | 0 |
| AS19491US | SBCASI-AKRON-OH-COVLIL - Wireless Maritime Services, LLC | — | — | 0 |
| AS19492US | SBCASI-AKRON-OH-COVLIL - Wireless Maritime Services, LLC | — | — | 0 |
| AS19506US | CLOUDMARK-PRD - Proofpoint, Inc. | — | — | 0 |
| AS19549US | SERVERSILO - HostPapa | — | — | 0 |
| AS19587US | H2-CREDIT-MANAGEMENT - H/2 Credit Manager GP LLC | — | — | 0 |
| AS19604US | IBM-RALEIGH-CL - IBM | — | — | 0 |
| AS19634US | FILTERED-NETWORKS - Filtered Networks | — | — | 0 |
| AS19762US | PHYSGUN - Physgun LLC | — | — | 0 |
| AS19798US | CITYOFELKHART - City of Elkhart | — | — | 0 |
| AS19829US | SMILEBRANDS-PRIMARY - Smile Brands Group Inc | — | — | 0 |
| AS19907US | NEUSTAR-AS6 - NeuStar, Inc. | — | — | 0 |
| AS19976US | REALPAGE-STARFIRE - Real Page, Inc. | — | — | 0 |