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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. | 210.9M | 21,017 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,219 |
| 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 |
| 228 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 368 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 48M | 3,585 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,932 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,534 |
| 7.2K |
| 4.6K |
| 20 |
| AS55037US | FIRST-BUSEY-CORPORATION - Busey Bank | 7.2K | 256 | 18 |
| AS29941US | TCCSA - Tri-County Computer Services Association | 7.2K | — | 13 |
| AS29938US | ENDICOTT-DIRECT-NETWORK - Endicott College | 7.2K | — | 3 |
| AS32264US | KMTELECOM - KMTelecom | 7.2K | — | 7 |
| AS398765US | TEPACONNECT - TEPA Connect LLC | 7.2K | 65.5K | 28 |
| AS19116US | WASHINGTON-BROADBAND - Washington Broadband, Inc. | 7.2K | 65.6K | 19 |
| AS25817US | SMARTECHCORP - SMARTECH CORPORATION | 7.2K | — | 13 |
| AS62713US | AS-PUBMATIC - PubMatic, Inc. | 7.2K | 1 | 27 |
| AS397477US | WGIX - WGIX | 7.2K | — | 21 |
| AS32508US | GSINET - Granite State Communications | 7.2K | — | 27 |
| AS627US | DNIC-ASBLK-00616-00665 - United States Department of Defense (DoD) | 7.2K | — | 6 |
| AS17212US | TRI-COUNTY-FIBER-COMMUNICATIONS - Tri-County Fiber Communications, LLC | 7.2K | 65.5K | 5 |
| AS23550US | HUB-ADVANCED-NETWORKS-LLC - HUB Advanced Networks, LLC | 7.2K | 65.5K | 29 |
| AS30303US | OOMA - Ooma, Inc. | 7.2K | — | 19 |
| AS40229US | MAINEHEALTH-MAINE-MEDICAL-CENTER - MaineHealth Maine Medical Center | 7.2K | — | 13 |
| AS53956US | NEFCOM COMMUNICATIONS - Northeast Florida Long Distance Co., Inc. | 7.2K | — | 14 |
| AS54538US | PAN0001 - PALO ALTO NETWORKS | 7.2K | 22 | 34 |
| AS203501US | EMARSYS-US-AS Emarsys North America, Inc | 7.2K | — | 24 |
| AS401413US | 8TH-FIRE-NETWORK-01 - 8th Fire Communications, LLC | 7.2K | 65.5K | 13 |
| AS15069US | SBA - Smith Bucklin & Associates Inc | 7.2K | — | 7 |
| AS54624US | EL-FAIRFAX-VA - Ellucian Company LP | 7.2K | — | 10 |
| AS15195US | AGNETWORX - Alhambra-Grantfork Telephone Company | 7.2K | — | 3 |
| AS31998US | KDSNET - Konceptio Data Services LLC | 7.2K | — | 19 |
| AS54723US | AS54723-MIDWEST-DATA-CENTER - Midwest Data Center, Inc. | 7.2K | 65.5K | 22 |
| AS396238US | FAIRLAWNGIG-NET - FairlawnGig.net | 7.2K | 65.5K | 15 |
| AS30149US | GS-FFN - The Goldman Sachs Group, Inc. | 7.2K | — | 9 |
| AS397005US | CVSI-FIREFLY - Central Virginia Services, INC | 7.2K | 4.1K | 8 |
| AS30678US | STATEFARMINSCO-2 - State Farm Mutual Automobile Insurance Company | 7.2K | — | 13 |
| AS54327US | MTWEST - MONTANA WEST, L.L.C. | 7.2K | 65.5K | 7 |
| AS401322US | LUCK-NETO-01 - NetO Corp | 7.2K | 1 | 28 |
| AS36319US | ENWHC - NorthShore University HealthSystem | 7.2K | — | 11 |
| AS62511US | DCI - DAVIS COMMUNICATIONS, INC. | 7.2K | — | 3 |
| AS36683US | WILLAMETTE-ESD - Willamette Education Service District | 7.2K | — | 3 |
| AS59729US | ITL-BG GREEN FLOID LLC | 7.2K | 65.5K | 18 |
| AS16803US | MYAKKACOMM1 - Myakka Communications, Inc. | 7.2K | — | 4 |
| AS10445US | HTG - Huntleigh Telcom | 7.2K | — | 19 |
| AS36329US | INTRADO - Intrado Life & Safety, Inc. | 7.2K | 24 | 28 |
| AS18540US | RECOVERYPOINTSYSTEMS - Recovery Point Systems Inc. | 7.2K | 65.5K | 9 |
| AS397016US | HAWKEYE-TELEPHONE-COMPANY - Hawkeye Telephone Company | 7.2K | — | 8 |
| AS395040US | GHMO-52 - Green Hills Telephone Corporation | 7.2K | — | 12 |
| AS32110US | ASURION-INSURANCE-CORPORATION - Asurion Insurance Services, Inc. | 7.2K | 1 | 12 |
| AS16789US | YARDI - YARDI SYSTEMS, INC | 7.2K | — | 19 |
| AS1246US | TLL-WEST - Zito Media | 7.2K | — | 9 |
| AS401041US | AXIS-SECURITY - Axis Security | 7.2K | — | 28 |
| AS14203US | JUNIPER-NETWORKS - Juniper Networks, Inc. | 6.9K | 262 | 26 |
| AS14991US | IL2K - ElkhartNet, Inc | 6.9K | — | 7 |