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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. | 218M | 24,389 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,302 |
| 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.
32,169 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 | 51.5M | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,996 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,341 |
| 1.3K |
| 256 |
| 3 |
| AS396311US | FASTWAVE - FastWave.biz | 1.3K | — | 2 |
| AS396010US | FTC-ASN1 - Franklin Telephone Company, Inc | 1.3K | — | 4 |
| AS396046US | PNFP - Pinnacle Financial Partners, Inc. | 1.3K | — | 3 |
| AS47069US | USKVM - USKVM LLC | 1.3K | 65.5K | 3 |
| AS395474US | CITY-OF-PLANO-TX - City of Plano, Texas | 1.3K | — | 5 |
| AS401077US | UMBRACORP - Umbra Industries Corporation | 1.3K | 1 | 3 |
| AS33683US | UIWTX - University of the Incarnate Word | 1.3K | — | 2 |
| AS31989US | FFH-AS - Fiber Fast Homes, LLC | 1.3K | — | 5 |
| AS397689US | C1CX-VA - C1CX | 1.3K | — | 4 |
| AS394218US | VXI - VXI Global Solutions, LLC | 1.3K | — | 4 |
| AS53506US | TASTYWORKS-01 - tastyworks, Inc. | 1.3K | 16 | 3 |
| AS27496US | AS27496 - VENETIAN CASINO RESORT, LLC | 1.3K | — | 3 |
| AS12047US | GUNDERSEN-LUTHERAN - Gundersen Lutheran Medical Center, Inc. | 1.3K | — | 5 |
| AS397725US | JNR-ELECTRONICS-1 - J AND R ELECTRONICS, INC. | 1.3K | — | 2 |
| AS44324US | MOEDOVE-AS MoeDove LLC | 1.3K | 19.2K | 37 |
| AS54107US | ZYNGA-CORP - TAKE-TWO INTERACTIVE SOFTWARE, INC. | 1.3K | — | 5 |
| AS13673US | FAIRPO-3 - Fidium | 1.3K | — | 5 |
| AS63051US | CRITICALHOSTING-USA - Critical Hosting Solutions LLC | 1.3K | 65.5K | 6 |
| AS62631US | AURUS - Aurus Inc | 1.3K | — | 5 |
| AS64290US | WISP10175 - Server ISP | 1.3K | — | 2 |
| AS11455US | USTR-ASN - US Technology Resources, LLC | 1.3K | — | 5 |
| AS40620US | INGENUITY-SYSTEMS - QIAGEN Redwood City, Inc. | 1.3K | — | 5 |
| AS19717US | MAINSTREAMDATA-375 - Mainstream Data, Inc. | 1.3K | — | 4 |
| AS30039US | SN4ENDO - Smith and Nephew - Endoscopy | 1.3K | — | 5 |
| AS4366US | GE-AMC - General Electric Company | 1.3K | — | 5 |
| AS22649US | AS-CODINGDIRECT - CodingDirect LLC | 1.3K | 4.1K | 6 |
| AS30697US | IVISION - iVision, Inc. | 1.3K | — | 2 |
| AS14727US | LONE-STAR-ISP - LONE STAR ISP | 1.3K | 65.5K | 3 |
| AS400506US | BAIAS - Black Apple | 1.3K | — | 5 |
| AS397582US | WOW - WOW-World of Wireless | 1.3K | — | 5 |
| AS394188US | PRIMEVOX - PrimeVOX Communications, LLC | 1.3K | — | 5 |
| AS62983US | AS-MPA - The Massachusetts Port Authority | 1.3K | — | 5 |
| AS3529US | DNIC-AS-03529 - United States Department of Defense (DoD) | 1.3K | — | 5 |
| AS397686US | C1CX-TX - C1CX | 1.3K | — | 4 |
| AS393387US | PORT-OF-TACOMA-ASN - Port of Tacoma | 1.3K | — | 2 |
| AS393351US | AMERISBANK - Ameris Bank | 1.3K | — | 5 |
| AS30307US | KSMNW-NA-ASN - Kasumi Networks NA LLC | 1.3K | 3 | 5 |
| AS53616US | ASYMPTOTE - ASYMPTOTE NETWORK, LLC | 1.3K | — | 2 |
| AS54640US | CONEHEALTH - The Moses H. Cone Memorial Hospital | 1.3K | — | 5 |
| AS40525US | CHOC - CHILDRENS HOSPITAL OF ORANGE COUNTY | 1.3K | — | 5 |
| AS21807US | AETHERIAL-NETWORKS - Aetherial Networks LLC | 1.3K | 256 | 6 |
| AS36857US | FREUDE - Freudenberg-NOK General Parternership | 1.3K | — | 2 |
| AS1326US | ANSBB-ASNNET-1 - Verizon Business | 1.3K | — | 5 |
| AS53595US | OSK - Oshkosh Corporation | 1.3K | — | 5 |
| AS394459US | HOU-QUANTA - QUANTA SERVICES INC | 1.3K | — | 5 |
| AS4390US | BELLATLANTIC-COM - Bell Atlantic, Inc. | 1.3K | 1 | 6 |