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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 | 24,645 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,307 |
| 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.
32,220 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 | 3,890 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,006 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,364 |
| 256 |
| — |
| 1 |
| AS395321US | MOLEX-AS - MOLEX LLC | 256 | — | 1 |
| AS36832US | NGL-AS - Network Gibbon LLC | 256 | 256 | 2 |
| AS33101US | AAFCU-PUBLIC-01 - AIR ACADEMY FEDERAL CREDIT UNION | 256 | — | 1 |
| AS393850US | CLEVERSAFE - IBM | 256 | — | 1 |
| AS394681US | SUMMITHEALTHCARE - Summit Healthcare Regional Medical Center | 256 | — | 1 |
| AS29960US | QUALTRICS-01 - Qualtrics LLC | 256 | — | 1 |
| AS26920US | DTI-EAST-SLCL - DataGroup Technologies, LLC | 256 | — | 1 |
| AS3751US | PHONAK-LLC - Phonak, LLC | 256 | — | 1 |
| AS57926US | SAFEDNS-AS SafeDNS, Inc. | 256 | 1 | 2 |
| AS21746US | MANCON-COX-CAVALIER-FAILOVER - Mancon | 256 | — | 1 |
| AS396506US | BEVAIR-27105 - BEVERAGE AIR CORPORATION | 256 | — | 1 |
| AS400498US | BPLLC-AS-01 - Brad Peabody LLC | 256 | 4 | 2 |
| AS395696US | INTOXALOCK - Intoxalock | 256 | — | 1 |
| AS205781US | HostZen HostZen LLC | 256 | — | 1 |
| AS394490US | AATRIX - Aatrix Software, Inc | 256 | — | 1 |
| AS399635US | CC-VISA-02 - Cardinal Commerce Corporation | 256 | — | 1 |
| AS399620US | NCISD - New Caney ISD | 256 | — | 1 |
| AS55100US | GTCNA - The Glenmede Trust Company National Association | 256 | — | 1 |
| AS397396US | DATA-CENTER-INC-ASN-01 - Data Center, Inc. | 256 | — | 1 |
| AS398703US | APOG-MARITIME - Apogee Telecom Inc. | 256 | — | 1 |
| AS23103US | WD-AS1 - Western Digitech, Inc. | 256 | — | 1 |
| AS40053US | BIOWAREULCEDMONTON - Electronic Arts, Inc. | 256 | — | 1 |
| AS3742US | ROCKISLAND2 - Rock Island Communications | 256 | — | 1 |
| AS14612US | VNC-MAIN-LIST - Velios Networks Corp. | 256 | — | 1 |
| AS6216US | IV-AS - Intellectual Ventures Management, LLC | 256 | — | 1 |
| AS36659US | JWD-AS1 - J&B Wholesale Distributing, Inc. | 256 | — | 1 |
| AS402094US | SRJK-DFW-01 - SRJK LLC | 256 | 256 | 2 |
| AS393326US | EPICGA-DC3-AS - Epic Games Inc. | 256 | — | 1 |
| AS17387US | AUBIX - AUBIX LLC | 256 | 4.1K | 2 |
| AS401829US | PIPEWORKS-01 - Pipeworks Inc. | 256 | 1 | 2 |
| AS40074US | BK-NET-PUB - BURGER KING COMPANY LLC | 256 | — | 1 |
| AS199594US | PMIX-AS Poema eXchange LLC | 256 | 256 | 2 |
| AS137937US | TNSI-AS-AP - Transaction Network Services | 256 | — | 1 |
| AS13406US | MCCFL - State College of Florida, Manatee-Sarasota | 256 | — | 1 |
| AS394526US | ADVOCAREAS1 - AdvoCare International, L.P. | 256 | — | 1 |
| AS11793US | ATI-LAS-ASN1 - Aristocrat Technologies, Inc. | 256 | — | 1 |
| AS395690US | LUXOFT-USA - Luxoft USA Inc | 256 | — | 1 |
| AS384US | AFCONC-BLOCK1-AS - Air Force Systems Networking | 256 | — | 1 |
| AS32500US | VESTA - Airbus DS Communications Inc | 256 | — | 1 |
| AS32434US | IMP-NET - Imperial Network | 256 | 256 | 2 |
| AS19313US | DATACOR - Datacor, Inc. | 256 | — | 1 |
| AS40199US | STELLAR INNOVATORS ALLIANCE - STELLAR INNOVATORS ALLIANCE LLC | 256 | 256 | 2 |
| AS395178US | RED-VENTURES - Red Ventures, LLC | 256 | — | 1 |
| AS19590US | FICOH-ASN-1 - FICOH | 256 | — | 1 |
| AS14466US | ARIBA-PGH - SAP America Inc. | 256 | — | 1 |
| AS26917US | COVENTRY-ASN - The Coventry Group, Inc. | 256 | — | 1 |