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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) | 227.7M | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 210.9M | 21,032 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,221 |
| 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.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 368 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 48M | 3,585 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,933 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,534 |
| 3.6K |
| — |
| 7 |
| AS20384US | NWLRBD - NewellRubbermaid Inc. | 3.6K | — | 14 |
| AS22299US | GCRONLINE - GCR Company/GCR Online | 3.6K | 2 | 16 |
| AS47046US | WADSWORTH-CITYLINK - CityLink | 3.6K | 65.5K | 4 |
| AS17812US | DIGICERTINC-AS-AP - Digicert Inc | 3.6K | — | 6 |
| AS13376US | TOPPAN-MERRILL - Toppan Merrill LLC | 3.6K | — | 6 |
| AS23278US | SMART-CITY-ANCC - SMART CITY NETWORKS, LIMITED PARTNERSHIP | 3.6K | — | 3 |
| AS27027US | AIRLINK-INTERNET - AirLink Internet Services | 3.6K | 65.5K | 9 |
| AS13787US | CENTURYLINK-LEGACY-EMBARQ-JCTY - CenturyLink Communications, LLC | 3.6K | — | 4 |
| AS205399US | HOSTIGGER Hostigger INC. | 3.6K | — | 14 |
| AS395475US | SCSALASKA - SnowCloud Services LLC | 3.6K | 65.5K | 7 |
| AS14969US | JANE-STREET - JANE STREET | 3.6K | — | 13 |
| AS46549US | GVO - Global Virtual Opportunities | 3.6K | — | 3 |
| AS63156US | TGNA-WFAA - TEGNA Inc. | 3.6K | — | 14 |
| AS397032US | SPARKED - SPARKED HOST LLC | 3.6K | 5 | 19 |
| AS12152US | AS12152 - Ascensus, LLC. | 3.6K | — | 12 |
| AS16463US | DPSINET - Data Processing Solutions, Inc. | 3.6K | — | 3 |
| AS396853US | NCW-AS2 - WorldCell Solutions, LLC | 3.6K | 65.5K | 5 |
| AS55028US | KIEWIT-US - Kiewit Corporation | 3.6K | 4.1K | 8 |
| AS29757US | WEBLINE19 - Webline Services Inc | 3.6K | 65.5K | 17 |
| AS17017US | AS-CAMPUSCOLO - campuscolo.com | 3.6K | 65.5K | 5 |
| AS26190US | SENTRY - Sentry Insurance a Mutual Company | 3.6K | — | 8 |
| AS62537US | SLINC - Sauce Labs Inc | 3.6K | — | 8 |
| AS55076US | JOHNSON-TELCO - Johnson Telephone Company | 3.6K | — | 3 |
| AS35777US | LTN-AS - LTN Global Communications Inc | 3.6K | 13 | 27 |
| AS46370US | GRANDWEB - Grand Web Solutions, Inc. | 3.6K | — | 14 |
| AS21858US | ASCENT-DATA-LLC - Ascent Data, LLC | 3.6K | 65.5K | 7 |
| AS32625US | OFFSITE-1 - OFFSITE, LLC | 3.6K | 65.5K | 6 |
| AS22115US | YOUMAKER - Youmaker Corporation | 3.6K | 2 | 16 |
| AS400040US | WT-FRANK - Wolverine Trading, LLC | 3.6K | — | 14 |
| AS398578US | VPSIE-INC - VPSie INC | 3.6K | 259 | 12 |
| AS400951US | AKARI-NETWORKS - Akari Networks LLC | 3.6K | — | 10 |
| AS44382US | WhiteLabel Fiba Cloud Operation Company, LLC | 3.6K | 11 | 25 |
| AS63219US | GOVNET-SERVICES - GovNET | 3.6K | — | 5 |
| AS62514US | VENUS-TEL-CORP - Venus Telephone Corporation | 3.6K | — | 4 |
| AS397810US | AVERISTAR-ASN-01 - AveriStar Consulting LLC | 3.6K | — | 12 |
| AS394511US | EFATL - eFolder, Inc | 3.6K | — | 14 |
| AS14109US | SAC-10-BGPASN-01 - Sigma Aldrich Corporation | 3.6K | 0 | 12 |
| AS17140US | CBRE-US - CBRE, INC. | 3.6K | — | 9 |
| AS394541US | PVN-STW - Professional Value Internet Services, Inc. | 3.6K | — | 8 |
| AS26081US | SANTEECOOPER - Santee Cooper | 3.6K | — | 14 |
| AS14639US | CARDINALHEALTH-AS02 - Cardinal Health, Inc. | 3.6K | 1 | 12 |
| AS25774US | BES-N003 - Better eSolution | 3.6K | — | 4 |
| AS393889US | EIGHTJOY-NETWORK-LLC - EightJoy Network LLC | 3.6K | — | 14 |
| AS17381US | AS-WSI-ECOM-WEST - Williams-Sonoma | 3.6K | — | 13 |
| AS395020US | SOUTHEAST-MN-WIFI - SEMN Wifi | 3.6K | — | 9 |
| AS25664US | SCOE-ASN-25664 - Solano County Office of Education | 3.6K | 65.5K | 5 |