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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. | 211.2M | 21,171 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,241 |
| 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 | 3,667 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,951 |
| AS701US | UUNET - Verizon Business | 43.6M | 998 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,368 |
| 512 |
| — |
| 2 |
| AS11428US | BEAM-GLOBAL - Jim Beam Brands Co. | 512 | — | 2 |
| AS201834US | SupplyFrame Supply Frame, Inc. | 512 | — | 2 |
| AS62628US | ZOOX - Zoox Labs, Inc. | 512 | 3 | 5 |
| AS397975US | BRITEFISH-01 - Realnets | 512 | — | 2 |
| AS30310US | MUT-AMERNY - Mutual of America Life Insurance Company | 512 | — | 1 |
| AS53878US | EMC-AS - Dell, Inc. | 512 | — | 2 |
| AS53851US | PAMPEREDCHEF - The Pampered Chef, Ltd. | 512 | — | 2 |
| AS54986US | FLOWERS - 1-800-Flowers.com, Inc. | 512 | — | 2 |
| AS54721US | AS-NGEN - NGEN Networks | 512 | 5 | 7 |
| AS398154US | ASCOTFL - City of Tallahassee | 512 | — | 2 |
| AS393914US | INVITAE-01 - Invitae Corp | 512 | — | 2 |
| AS32099US | NYSOAG-AS - New York State Office of the Attorney General | 512 | — | 2 |
| AS33555US | STONEMARCHE - Stonemarche Network CoOp. | 512 | — | 2 |
| AS17174US | WALMART-INDIA - Wal-Mart Stores, Inc. | 512 | — | 2 |
| AS400961US | LOGISTIVIEW-CLOUD-01 - LogistiVIEW, Inc. | 512 | — | 2 |
| AS26353US | REALNETWORKS - REALNETWORKS LLC | 512 | — | 1 |
| AS46566US | CCS - CAPITAL Card Services, Inc. | 512 | — | 2 |
| AS13932US | WHHS - Washington Hospital Healthcare Sysem | 512 | — | 2 |
| AS19636US | FORMFACTOR - FORMFACTOR, INC | 512 | — | 1 |
| AS30438US | RESOLVE-BGP01 - Resolve I.T. | 512 | 1 | 3 |
| AS398073US | NAVIH-01 - naviHealth, Inc | 512 | — | 2 |
| AS39989US | WEBSTER-BANK - Webster Bank, National Association | 512 | — | 1 |
| AS402453US | WEALTH - Wealth | 512 | — | 2 |
| AS10764US | STARTAP - University of Illinois | 512 | — | 1 |
| AS55099US | HRBL-SLC-INTERNET-BGP - Herbalife International of America, Inc. | 512 | — | 2 |
| AS47754US | SQP-AS Squarepoint OPS LLC | 512 | — | 2 |
| AS30250US | AS-ALLENISD-610 - Allen Independent School District | 512 | — | 2 |
| AS26109US | L-PERRIGO-GLOBAL - L. Perrigo Company | 512 | — | 1 |
| AS36574US | WYFF-TV - Hearst-Argyle Television, Inc. | 512 | — | 2 |
| AS54256US | VELOCITY-COMMUNICATIONS - Velocity Communications Inc. | 512 | 65.5K | 3 |
| AS401503US | MERIDIAN-C-ATL1 - Meridian Cooperative, Inc. | 512 | — | 2 |
| AS206625US | EHI-AME-AS Enterprise Holdings, Inc. | 512 | — | 1 |
| AS10779US | STEPBROBD - StepBroBD, Inc. | 512 | 4.1K | 3 |
| AS30572US | NYCB-NEW-YORK-COMMUNITY-BANCORP-INC - New York Community Bancorp Inc. | 512 | — | 2 |
| AS63164US | TGNA-WWL-WUPL - TEGNA Inc. | 512 | — | 2 |
| AS930US | CITY-OF-CELINA - CITY OF CELINA | 512 | — | 2 |
| AS20047US | CITYOFVABEACH - City of Virginia Beach, Virginia | 512 | — | 2 |
| AS53738US | DDC-JVL - DATA DIMENSIONS CORP | 512 | — | 1 |
| AS16647US | PERIMETERWATCH - Perimeterwatch Technologies, INC | 512 | — | 2 |
| AS396320US | MACORG - Metropolitan Airports Commission | 512 | 16 | 2 |
| AS395123US | CENTRACOM - CENTRACOM INTERACTIVE | 512 | 1 | 3 |
| AS12113US | DAWN-FOOD-PRODUCTS - Dawn Food Products, Inc. | 512 | — | 2 |
| AS400226US | STORMYCLOUDINC - StormyCloud Inc | 512 | 256 | 3 |
| AS54682US | CFCU01 - Citadel Federal Credit Union | 512 | — | 2 |
| AS39983US | PBGC-HQ-AS - Pension Benefit Guaranty Corp. | 512 | — | 2 |
| AS32025US | HASBRO - Hasbro, Inc. | 512 | — | 2 |