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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 |
| — |
| 2 |
| AS16848US | NEXG-NOC - NexG | 768 | — | 2 |
| AS40413US | ASN-HCMC - Hennepin County Medical Center | 768 | — | 3 |
| AS395800US | JCPN-AS - JEFFERSON COUNTY PUD NO. 1 | 768 | — | 2 |
| AS394794US | COVE-2ND - Covenant Health | 768 | — | 3 |
| AS902US | SPACECOASTCREDITUNIONMAIN - SPACE COAST CREDIT UNION | 768 | — | 3 |
| AS6591US | INGR-ASN - Intergraph Corporation | 768 | — | 3 |
| AS32467US | SAKS-HBC-AS - SFA Holdings Inc. | 768 | — | 3 |
| AS22395US | TORNADOCOMP - Tornado Computer Systems, Inc. | 768 | — | 2 |
| AS26182US | AS-EXCELLUS - Excellus Health Plan, Inc. | 768 | — | 3 |
| AS397804US | LDTUS-01 - Lighthouse Document Technologies, Inc | 768 | — | 3 |
| AS26694US | ADMIS-AS - Adm Investor Services, Inc | 768 | — | 3 |
| AS219217US | Zetly Netly LLC | 768 | — | 3 |
| AS32848US | ETON-INTERNATIONAL-INC - ETON INTERNATIONAL, INC. | 768 | — | 3 |
| AS393368US | NYAKI - Nyaki Technologies, LLC | 768 | 1 | 4 |
| AS10745US | ARIN-ASH-CHA - ARIN Operations | 768 | 3 | 6 |
| AS46329US | TOURO-ASN - TOURO UNIVERSITY NEVADA | 768 | — | 2 |
| AS55264US | ATLANTIC-METRO-COMMUNICATIONS-II-INC - Atlantic Metro Communications II, Inc. | 768 | — | 2 |
| AS16738US | LMI - Logistics Management Institute | 768 | — | 3 |
| AS400004US | SECURENET - SecureNet | 768 | 65.5K | 5 |
| AS46755US | COLUMBIA-COLLEGE-MISSOURI - Columbia College | 768 | — | 3 |
| AS14779US | YAHOO - Yahoo Holdings Inc. | 768 | 1 | 4 |
| AS401234US | NORTHEASTERN-LON-AS - Northeastern University | 768 | — | 2 |
| AS54838US | NWINC-01 - Networks Inc | 768 | — | 3 |
| AS63404US | AGIOS - Agios Pharmaceuticals, Inc. | 768 | — | 3 |
| AS395982US | WKMC-ASN - Willis-Knighton Medical Center | 768 | — | 3 |
| AS29716US | ASNOTS - Otsuka America Pharmaceutical, Inc. | 768 | — | 3 |
| AS15157US | NORWORLD - NORTHWESTERN CORPORATION | 768 | — | 3 |
| AS393707US | ABM-IND - ABM Industries | 768 | — | 3 |
| AS33753US | WBMI - West Bend Mutual Insurance Company | 768 | — | 3 |
| AS15327US | EPS-ECS - EPS US, LLC | 768 | — | 3 |
| AS22246US | ASN-22246 - Nasdaq, Inc. | 768 | — | 2 |
| AS400829US | HCDL-SAN-ANTONIO-DATA-CENTER - H5 Data Centers | 768 | 4.1K | 4 |
| AS12287US | AS-AFILIAS-CTRL1 - Afilias, Inc. | 768 | 1 | 4 |
| AS5052US | DNIC-AS-05052 - United States Department of Defense (DoD) | 768 | — | 3 |
| AS33024US | HWS - Harvard-Westlake School | 768 | 19 | 7 |
| AS53388US | TEFEXIA - Tefexia LC | 768 | 65.5K | 5 |
| AS395169US | SCRIPTPRO-1 - ScriptPro LLC | 768 | — | 3 |
| AS54651US | BLACK-DUCK-SOFTWARE-01 - Black Duck Software, Inc. | 768 | — | 2 |
| AS63306US | TOUCHTONE-LA - TouchTone Communications | 768 | — | 3 |
| AS11394US | CITYOFRICHARDSON-AS - City of Richardson | 768 | — | 3 |
| AS400626US | ACSC1006 - Automobile Club of Southern California | 768 | — | 3 |
| AS17301US | FASTENAL - Fastenal Company | 768 | — | 2 |
| AS27358US | TRUSTMARK-INSURANCE-INTERNET - TRUSTMARK INSURANCE CO. | 768 | — | 3 |
| AS53722US | SSSASN - Social & Scientific Systems, Inc. | 768 | 3 | 6 |
| AS399135US | 617A-AS-1 - 617A Corporation | 768 | 2 | 5 |
| AS26325US | TECHCU-AS - Technology Credit Union | 768 | — | 3 |