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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) | 227.4M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 217.9M | 24,512 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,322 |
| 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.
32,235 autonomous systems registered to United States. Click an AS for detail.
| 72.9M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,906 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.7M | 4,281 |
| 26.1K |
| 65.5K |
| 11 |
| AS36383US | GEN-AS1 - Google LLC | 26.1K | — | 22 |
| AS6256US | CELLCO-PART - Verizon Business | 26.1K | — | 87 |
| AS12285US | ONE-ELEVEN - ShawneeLink Corporation | 26.1K | — | 9 |
| AS53768US | LABCORP - Laboratory Corporation of America | 26.4K | — | 16 |
| AS33362US | WIKTEL - Wikstrom Telephone Company, Incorporated | 26.4K | 1M | 15 |
| AS138US | DNIC-AS-00138 - United States Department of Defense (DoD) | 26.4K | — | 20 |
| AS393398US | ASN-DIS - 1515 ROUNDTABLE DR PROPERTY, LLC | 26.4K | 65.5K | 43 |
| AS50245US | SERVEREL-AS Serverel Inc. | 26.4K | 524.3K | 16 |
| AS2003US | EPRI-PA - Electric Power Research Institute | 26.6K | — | 27 |
| AS32645US | PIVOT - Fidium | 26.6K | — | 31 |
| AS10747US | EPIC-HOSTING - Epic Hosting, LLC | 26.6K | — | 25 |
| AS11448US | CLEARWAVE-FIBER - Clearwave Communications | 26.6K | 65.5K | 36 |
| AS46303US | POPP-COM - POPP.com, Inc. | 26.9K | — | 9 |
| AS394708US | HORIZONCHILLICOTHETELEPHONE - Horizon Telcom Inc. | 26.9K | — | 46 |
| AS11734US | CONNECTRIA-ASN-1 - Connectria | 26.9K | 12.3K | 74 |
| AS12054US | ALAMEDACOUNTYDATAPROCESSING - Alameda County | 26.9K | — | 5 |
| AS40627US | RC-COLO1 - RingCentral Inc | 26.9K | 1 | 36 |
| AS22903US | EDGE-HOSTING - Databank Holdings, Ltd | 26.9K | 1 | 56 |
| AS25645US | MOMENTUM-ACCESS - Momentum Telecom, Inc. | 26.9K | 11 | 94 |
| AS29951US | SYPTEC-NOC - Syptec | 26.9K | — | 62 |
| AS5049US | MORGAN-ASN - Morgan Stanley Group Inc. | 26.9K | — | 20 |
| AS26831US | CAMERON-COMMUNICATIONS - Cameron Communications, LLC | 26.9K | — | 83 |
| AS11409US | EFXSECURE - Equifax, Inc. | 27.1K | 1 | 27 |
| AS395658US | GOBEC-BARRY-ELECTRIC - Barry Electric Cooperative | 27.1K | 139.3K | 32 |
| AS396956US | MLEC-ASN-1 - Meriwether Lewis Electric Cooperative | 27.1K | 65.5K | 12 |
| AS29831US | FONENET - FONE.NET, LLC | 27.1K | 65.6K | 81 |
| AS62728US | VGPE-ASN1 - VELOCITY, A MANAGED SERVICES COMPANY | 27.1K | — | 11 |
| AS6507US | RIOT-NA1 - Riot Games, Inc | 27.4K | 524.3K | 37 |
| AS40306US | VIASAT-3 - ViaSat,Inc. | 27.4K | — | 107 |
| AS3738US | SSB-ASN-3738 - State Street Bank and Trust Company | 27.4K | — | 88 |
| AS19637US | AVG19637 - Avago Technologies U.S. Inc. | 27.4K | 14 | 109 |
| AS19149US | US-SIGNAL-IA01 - US Signal Company, L.L.C. | 27.4K | 256 | 9 |
| AS211192US | Netwave-AS-AP NetWave Inc. | 27.4K | — | 107 |
| AS6423US | DF-PTL2-3 - Digital Fortress | 27.4K | 512 | 11 |
| AS22645US | LEARN-COMMODITY - LEARN | 27.6K | 65.5K | 15 |
| AS55044US | LRCSNET - LR Communications, Inc. | 27.6K | — | 63 |
| AS20385US | ACCESSLINE-COM-1000 - AccessLine Communications Corp. | 27.6K | — | 37 |
| AS53959US | PSDATA - Public Service Data, Inc. | 27.6K | 65.5K | 52 |
| AS32391US | SRCACCESS - SANTA ROSA TELEPHONE COOPERATIVE INC | 27.6K | 65.5K | 6 |
| AS36223US | SPANISHFORK-COMMUNITY-NETWORK - Spanish Fork City | 27.6K | 9 | 77 |
| AS396287US | NEXTPOWEREDBYNAECLLC - Next, Powered by NAEC, LLC | 27.6K | — | 6 |
| AS27005US | PNPT-ASN - Pinpoint Communications, Inc. | 27.6K | 131.1K | 40 |
| AS215595US | SPARKTECH SparkTech LTD | 27.6K | — | 98 |
| AS40328US | ACENTEK-MN - AcenTek | 27.6K | 4.6K | 14 |
| AS400618US | PRIME-SEC - Prime Security Corp. | 27.6K | 2.6K | 98 |
| AS22363US | PHMGMT-AS1 - Powerhouse Management, Inc. | 27.9K | 2 | 111 |