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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 | 3,135 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,254 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,267 |
| 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 | 413 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,726 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,965 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,346 |
| — |
| — |
| 0 |
| AS32282US | CNS-MAIN-01 - CaroNet Systems, LLC | — | — | 0 |
| AS32303US | RUBIOS - Rubio's Restaurants, Inc. | — | — | 0 |
| AS32310US | PIONEER-WORLD - Pioneer Balloon Co. | — | — | 0 |
| AS32362US | SPHERIS-AS - MModal Services, Ltd | — | — | 0 |
| AS32471US | CELLCO-PART - Verizon Business | — | — | 0 |
| AS32557US | CHARTER-32557-NA - Charter Communications LLC | — | — | 0 |
| AS32571US | NEXTCOMM-LLC-01 - Nextcomm LLC | — | — | 0 |
| AS32631US | TBLEND - TeleBlend | — | — | 0 |
| AS32663US | KCML-3-ASN - Knighthead Capital Management, LLC | — | — | 0 |
| AS32668US | STEL-HOSTING-LLC - STEL Hosting LLC | — | — | 0 |
| AS32734US | 2CONOC - 2checkout.com | — | — | 0 |
| AS32737US | RISE-AS32737 - JAB Wireless, INC. | — | — | 0 |
| AS32745US | DSV-FORMER-UTI-WORLDWIDE-INC - DSV Air & Sea Inc. | — | — | 0 |
| AS32767US | SAPIOTERRA - SAPIOTERRA, LLC | — | — | 0 |
| AS32781US | DCI-LLC - Defender cloud international llc | — | — | 0 |
| AS32814US | DATACONNECT - Data-Connect, LLC | — | — | 0 |
| AS32914US | RED5G - RED 4G MARKETING SOLUTIONS LLC | — | — | 0 |
| AS32918US | THE-STAR-LEDGER - Star-Ledger | — | — | 0 |
| AS32964US | VONAGE-06 - Vonage Holdings, Inc. | — | — | 0 |
| AS33082US | ISC-F-AS - Internet Systems Consortium, Inc. | — | — | 0 |
| AS33098US | TWRS-SP - Towerstream I, Inc. | — | — | 0 |
| AS33122US | SPWL - TDS TELECOM | — | — | 0 |
| AS33165US | AS33165-MNA - Missouri Network Alliance, LLC | — | — | 0 |
| AS33205US | UCB-34-33205 - United Community Bank | — | — | 0 |
| AS33340US | INDYIX-PUBLIC - Indianapolis Internet Exchange, Inc. | — | — | 0 |
| AS33424US | CHARTER-33424-NA - Charter Communications LLC | — | — | 0 |
| AS33454US | HOLMESCORP-AS - HOLMES CORPORATION | — | — | 0 |
| AS33473US | MMC - Metalmark Capital LLC | — | — | 0 |
| AS33558US | ISC-F-AS - Internet Systems Consortium, Inc. | — | — | 0 |
| AS33584US | ASN-AS33584 - Nasdaq, Inc. | — | — | 0 |
| AS33653US | CMCS - Comcast Cable Communications, LLC | — | — | 0 |
| AS34787US | LYAKH-AS GREEN FLOID LLC | — | — | 0 |
| AS35854US | ALDEN-MGMT-4200 - Alden Management Services, Inc. | — | — | 0 |
| AS35886US | STEPHENS-MEDIA-LLC - Stephens Media LLC | — | — | 0 |
| AS35902US | VERACITY-NETWORKS - FirstDigital Communications, LLC | — | — | 0 |
| AS35992US | DEAN-COLLEGE - Dean College | — | — | 0 |
| AS36096US | PAGEROUS - PAGEROUS, LLC | — | — | 0 |
| AS36208US | CAPGE-HOSTING-PHX - CAPGEMINI AMERICA, INC. | — | — | 0 |
| AS36275US | LAYER777 - Layer 777 | — | — | 0 |
| AS36307US | BUILDERSFIRSTSOURCE - BUILDERS FIRSTSOURCE, INC. | — | — | 0 |
| AS36420US | ASN-THEPLANET-4 - IBM Cloud | — | — | 0 |
| AS36421US | AS-TRENDMICRO-COM - TREND MICRO INCORPORATED | — | — | 0 |
| AS36429US | CHARTER-36429-NA - Charter Communications LLC | — | — | 0 |
| AS36619US | CGTLD - VeriSign Global Registry Services | — | — | 0 |
| AS36672US | BSC-NYC-IB1 - Boston Systems Consulting LLC | — | — | 0 |
| AS36722US | CONTIN-83-2 - United Airlines, Inc. | — | — | 0 |