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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 |
| NOVANT-AS1 - Novant Health Inc. |
| 1.5K |
| — |
| 6 |
| AS397745US | HCAS-5 - Hanson Communications, Inc. | 1.5K | — | 2 |
| AS46324US | ADVANCED-STREAM-01 - Advanced Stream Inc. | 1.5K | 4.1K | 7 |
| AS398370US | NORTHWOODS-COMMUNICATION-TECHNOLOGIES - Northwoods Connect | 1.5K | — | 3 |
| AS40724US | DEKALB-COUNTY-GEORGIA-GOVERNMENT - DeKalb County, Georgia | 1.5K | — | 6 |
| AS54809US | MCMSYS - MCM Systems, LLC | 1.5K | — | 3 |
| AS57578US | MISAKA-CIS-AS Misaka Network, Inc. | 1.5K | 139.3K | 20 |
| AS19677US | NJTRANSIT - NJTRANSIT | 1.5K | — | 6 |
| AS13812US | 1999FISHERSYS - Fisher Scientific | 1.5K | — | 6 |
| AS46279US | TECHPRO-01 - TechPro, Inc | 1.5K | — | 3 |
| AS26159US | UMB - UMB Bank, NA | 1.5K | — | 6 |
| AS62928US | LVMH-EQ-SECAUCUS-INET - LVMH MOET HENNESSY LOUIS VUITTON | 1.5K | — | 5 |
| AS62586US | TRACE-ONE - Trace One Inc. | 1.5K | — | 3 |
| AS16560US | IDM-AS - Silvervine, Inc | 1.5K | — | 3 |
| AS14982US | DQ-ASN - Dynamic Quest, Inc. | 1.5K | — | 2 |
| AS399079US | LINCTEL - Linctel Communications Inc. | 1.5K | — | 6 |
| AS1855US | RBT-EDGE - RTX BBN Technologies, Inc. | 1.5K | — | 3 |
| AS30372US | AS30372 - Crown Castle Fiber LLC | 1.5K | — | 6 |
| AS393303US | RYDERSYSTEMINC - Ryder System, Inc. | 1.5K | — | 6 |
| AS402443US | AS-SIMPL-001 - SimpliFiber | 1.5K | — | 2 |
| AS396843US | DHP-ASN-PRI - Dean Health Plan, Inc. | 1.5K | — | 5 |
| AS26912US | NCH-AS1 - Northwest Community Hospital | 1.5K | — | 6 |
| AS397391US | HON-ASN - Hop One Networks LLC | 1.5K | 65.5K | 9 |
| AS393773US | ROMA-ABILENE - Oracle Corporation | 1.5K | — | 6 |
| AS10930US | NOVA-INTERNET - Nova Internet Services, Inc. | 1.5K | — | 6 |
| AS19189US | PULSEPOINT - Pulsepoint Inc | 1.5K | — | 6 |
| AS31911US | BSI-UBS - Vitalant | 1.5K | — | 4 |
| AS47000US | SUPERION - Superion, LLC | 1.5K | — | 6 |
| AS40950US | DEDIBYTE-LLC - DediByte, LLC | 1.5K | — | 6 |
| AS395774US | ESVC-ASN - Eastern Shore Communications, LLC | 1.5K | 65.5K | 4 |
| AS398415US | EPEC - EPEC Technologies, LLC | 1.5K | 4.1K | 4 |
| AS63015US | DALLAS-DATACENTER - Dallas Data Center | 1.5K | — | 6 |
| AS393446US | ALPHACORE-NETWORK - AlphaCore Network LLC | 1.5K | — | 6 |
| AS395503US | COMTEC-ASN - ComTec Cloud | 1.5K | — | 3 |
| AS400523US | INTERSYSTEMS - InterSystems Corporation | 1.5K | — | 5 |
| AS402062US | AUTOMATION-EXCHANGE - AUTOMATION EXCHANGE INFRASTRUCTURE LLC | 1.5K | 6 | 12 |
| AS6095US | NIBR-US-DMZ - Novartis Institutes for BioMedical Research, Inc. | 1.5K | — | 5 |
| AS46202US | MICHAELS-ATT-DS3 - Michaels Stores, Inc. | 1.5K | — | 6 |
| AS11862US | GSIC-NV - Radial, Inc. | 1.5K | — | 6 |
| AS25751US | VALUECLICK - Conversant, Inc. | 1.5K | 48 | 8 |
| AS30187US | BROWARD-COUNTY-COMMISION - Broward County | 1.5K | — | 6 |
| AS6556US | AIRGAPPED - AZSIGNSHOP LLC | 1.5K | — | 6 |
| AS395378US | CASCADEDIVIDE-DC - Cascade Divide Partners, LLC | 1.5K | 131.1K | 3 |
| AS397921US | MEGACOMLUG - Megawatt Communications LLC | 1.5K | 4.4K | 8 |
| AS23500US | THE-BANK-OF-NEW-YORK-MELLON-CORPORATION-AS23500 - The Bank of New York Mellon Corporation | 1.5K | — | 6 |
| AS4258US | ATG-4258 - Accretive Networks | 1.5K | 65.5K | 4 |
| AS30595US | URBANOUT - Urban Outfitters, Inc. | 1.5K | — | 6 |