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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 | 24,358 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,303 |
| 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.
32,168 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 | 4,342 |
| 768 |
| — |
| 3 |
| AS14058US | PCT-AS01 - PointClick Technologies, LLC | 768 | 4.1K | 3 |
| AS400608US | PETDW-MERGECO-01 - Bhp Billiton Petroleum (deepwater) Inc. | 768 | — | 3 |
| AS399301US | BANKSITESERVICES - The Forms Group | 768 | — | 3 |
| AS218859US | ALLSYSNET IT HELP LCC | 768 | 65.5K | 3 |
| AS14924US | MERIT-AS-30 - Merit Network Inc. | 768 | — | 2 |
| AS33666US | CMCS - Comcast Cable Communications, LLC | 768 | 3 | 6 |
| AS401656US | ATINETWORKS-01 - ATI NETWORKS, INC. | 768 | — | 2 |
| AS54153US | LACMTA-ASN - Los Angeles County Metropolitan Transportation Authority | 768 | — | 3 |
| AS18628US | NYMEX - NEW YORK MERCANTILE EXCHANGE | 768 | — | 3 |
| AS396410US | CODE42-INCYDR - Code 42 Software | 768 | — | 2 |
| AS16868US | PRAXAIR-INC - Linde Inc. | 768 | — | 2 |
| AS27161US | LITNICS-01 - Litnics, LLC | 768 | — | 3 |
| AS396344US | AURORA-PUBLIC-SCHOOLS-ASN - Aurora Public Schools | 768 | — | 3 |
| AS14162US | FHLB-PITT - FEDERAL HOME LOAN BANK of PITTSBURGH | 768 | — | 3 |
| AS11470US | RSNA-ASN - Radiological Society of North America | 768 | — | 3 |
| AS398422US | NAF-01 - Nexus Air Fiber, LLC | 768 | — | 3 |
| AS26476US | CYBERU - CyberU, Inc. | 768 | — | 3 |
| AS400155US | MHTELE-01 - Manchester-Hartland Telephone Company | 768 | — | 2 |
| AS395832US | IPRO-DA7 - IPro Media, Inc. | 768 | — | 3 |
| AS33252US | BASSPRO-AS - Bass Pro, LLC. | 768 | — | 3 |
| AS20429US | AS20429 - Guitar Center | 768 | — | 3 |
| AS7996US | VSCO - Victoria's Secret | 768 | — | 3 |
| AS30570US | AEPCO-30570 - Arizona Electric Power Cooperative, Inc. | 768 | — | 3 |
| AS398756US | SUNYBROOME-AS - SUNY Broome Community College | 768 | — | 3 |
| AS19536US | DIRECTV-SDWAN-DXC - DIRECTV, LLC | 768 | — | 3 |
| AS18440US | NCCI - National Council on Compensation Insurance, Inc. | 768 | — | 3 |
| AS26461US | CARDHOLDER-MANAGEMENT-SERVICES - Cardworks Servicing, LLC | 768 | — | 3 |
| AS25657US | BASECAMP - Basecamp, LLC | 768 | — | 3 |
| AS2562US | TI-US-INTL - Texas Instruments Incorporated | 768 | — | 3 |
| AS399009US | FACHQINTERNET - FANUC America Corporation | 768 | — | 2 |
| AS26845US | CFN - Fleetcor Technologies Operating Company, LLC | 768 | — | 3 |
| AS7868US | DATA-LIFE - Data Life Associates, Inc. | 768 | — | 2 |
| AS26086US | BESTBUY-2 - Best Buy Co., Inc. | 768 | — | 3 |
| AS53554US | NCUA-GOV---NATIONAL-CREDIT-UNION-ADMINISTRATION - National Credit Union Administration | 768 | — | 3 |
| AS18872US | VERITAS - Veritas Technologies LLC | 768 | 1 | 4 |
| AS4867US | CBOE - Cboe | 768 | — | 3 |
| AS398071US | ACSC1001 - Automobile Club of Southern California | 768 | — | 3 |
| AS40776US | TAONET - TaoNet | 768 | 15 | 18 |
| AS395987US | SEU-MORRISTOWN - Saint Elizabeth University | 768 | — | 3 |
| AS30620US | CO-DATACENTER - APPLIED SYSTEMS, INC | 768 | — | 3 |
| AS3944US | PARTAN-LAB - Partan & Partan | 768 | — | 3 |
| AS30260US | NOBEL-129-30260 - NobelBiz, Inc. | 768 | — | 2 |
| AS197640US | NETPROTECT Overplay, Inc | 768 | — | 3 |
| AS36798US | INFODIR - Info Directions, Inc. | 768 | — | 3 |
| AS33160US | OLDREPUBLICTITLEAS - OLD REPUBLIC NATIONAL TITLE INSURANCE CO. | 768 | — | 3 |
| AS54022US | KMTEL-NET - K & M Telephone Company, Inc | 768 | — | 2 |