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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. | 211.2M | 21,260 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,265 |
| 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 | 413 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,727 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,958 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,328 |
| — |
| — |
| 0 |
| AS27450US | C-IV - California Statewide Automated Welfare System Consortium IV | — | — | 0 |
| AS27481US | COLTRANE - Coltrane Asset Management, L.P. | — | — | 0 |
| AS27536US | GLENVIEW-CAPITAL - Glenview Capital Management, LLC | — | — | 0 |
| AS27571US | TRADEBOT-AS - Tradebot Systems, Inc | — | — | 0 |
| AS27601US | MCA - MCA | — | — | 0 |
| AS29712US | GALAXY - Fiserv Solutions, LLC | — | — | 0 |
| AS29715US | RDI1 - R & D Industries, Inc. | — | — | 0 |
| AS29739US | NEO2 - Neopolitan Networks | — | — | 0 |
| AS29772US | MCKINSEY-AM-SG1 - McKinsey & Company, Inc. | — | — | 0 |
| AS29859US | WOW-INTERNET-ILL - WideOpenWest Finance LLC | — | — | 0 |
| AS29879US | RBDIS80 - RB Distribution Inc | — | — | 0 |
| AS30005US | CORENET-EAST - Coretel America, Inc. | — | — | 0 |
| AS30137US | SPIDERROCK-GW-B - SPIDERROCK HOLDINGS, LLC | — | — | 0 |
| AS30171US | NASCAR-TRACK-ASN - NASCAR Holdings, LLC | — | — | 0 |
| AS30190US | SAIA-ASN - Saia Motor Freight Line | — | — | 0 |
| AS30269US | BERTRAM-COMMUNICATIONS-DCB - Bertram Communications LLC | — | — | 0 |
| AS30274US | TG-413-30274 - TXSE | — | — | 0 |
| AS30289US | ADVANCED-NETWORK-SOLUTIONS - Advanced Network SOlutions | — | — | 0 |
| AS30328US | LIBERTY-MUTUAL - Liberty Mutual Group | — | — | 0 |
| AS30349US | PAYCOR-BGP-AS - Paycor | — | — | 0 |
| AS30358US | INTEQ-LLC - SHC Direct, LLC | — | — | 0 |
| AS30368US | AAFP-ASNUMBER - AMERICAN ACADEMY OF FAMILY PHYSICIANS | — | — | 0 |
| AS30369US | KEMI - Kentucky Employers' Mutual Insurance | — | — | 0 |
| AS30375US | TEVA-NA - Teva Pharmaceuticals USA, INC | — | — | 0 |
| AS30492US | INFOB-30492 - Infobunker, L.L.C. | — | — | 0 |
| AS30617US | SALVO-FIBER-01 - Salvo Fiber LLC | — | — | 0 |
| AS30653US | AS30653 - Crown Castle Fiber LLC | — | — | 0 |
| AS30665US | JACKHENRY-5 - Jack Henry & Associates, Inc. | — | — | 0 |
| AS31855US | HPINC - HP Inc. | — | — | 0 |
| AS31979US | TERADYNE-BOSTON - Teradyne, Inc. | — | — | 0 |
| AS32019US | ADACORE - Ada Core Technologies, Inc. | — | — | 0 |
| AS32065US | VORTECH - Frontline Communications | — | — | 0 |
| AS32105US | CLOUD-SYNCINC-4 - Cloud Sync Inc | — | — | 0 |
| AS32185US | TRCOFMD - Transplant Resource Center of Maryland, Inc. | — | — | 0 |
| AS32227US | MWLLP-AS - McGuireWoods LLP | — | — | 0 |
| AS32260US | ASN-HCPI - Healthpeak Properties, Inc. | — | — | 0 |
| AS32333US | FFVA - Florida Fruit & Vegetable Association | — | — | 0 |
| AS32351US | HAMPTON-PRODUCT - Hampton Product | — | — | 0 |
| AS32394US | G-BAR-LIMITED-PARTNERSHIP - G-Bar Limited Partnership | — | — | 0 |
| AS32436US | AS32436 - Sheridan Radiology Management Services, Inc. | — | — | 0 |
| AS32527US | VARIOUS - FriendFinder Networks Inc | — | — | 0 |
| AS32538US | KOMATUSU-AMERICA-CORPORATION - Komatsu America Corporation | — | — | 0 |
| AS32566US | ERTIUS - Ertius LLC | — | — | 0 |
| AS32573US | ASN-TNE-32573 - TNE Telephone | — | — | 0 |
| AS32628US | WPOZ - Z 88.3 FM | — | — | 0 |
| AS32793US | ATSG-REDICLOUD01 - XTIUM, INC. | — | — | 0 |