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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218.2M | 25,525 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,309 |
| 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.
32,245 autonomous systems registered to United States. Click an AS for detail.
| 73M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,898 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,000 |
| AS701US | UUNET - Verizon Business | 43.6M | 991 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,357 |
| — |
| — |
| 0 |
| AS399472US | FLEX-STRUT-01 - Flex-Strut, Inc. | — | — | 0 |
| AS399614US | TXM-ASN-01 - Texas Mutual Insurance Company | — | — | 0 |
| AS399719US | SPK001 - Sparksta, LLC | — | — | 0 |
| AS399780US | OORTIO-ASN-01 - CISCO SYSTEMS, INC. | — | — | 0 |
| AS399797US | NEXTLINK - NextLink | — | — | 0 |
| AS399905US | INTELLAPLEX - IntellaPlex, LLC | — | — | 0 |
| AS400051US | 199-249-253-ASN - GROUP O INC | — | — | 0 |
| AS400120US | SPACELINK - Spacelink, Inc | — | — | 0 |
| AS400128US | OCELOT-NET-ASN00 - Ocelot Technologies Inc. | — | — | 0 |
| AS400129US | GMI-AS - Graphic Magic, Inc. | — | — | 0 |
| AS400280US | WINSONIC-EXCHANGE - Winsonic Digital Exchange Ltd. | — | — | 0 |
| AS400286US | SBLSD-BGP-ASN - Sumner-Bonney Lake-SD | — | — | 0 |
| AS400377US | AS-DC - Des Equity LLC | — | — | 0 |
| AS400549US | BRIDGE-IX-BTR - DartPoints Operating Company, LLC | — | — | 0 |
| AS400582US | MICROSOFT-AZURE-DEDICATED - Microsoft Corporation | — | — | 0 |
| AS400668US | BLASTABLE - Blastable Inc. | — | — | 0 |
| AS400676US | ILLUMIFIN-NA-GVL - illumifin Corporation | — | — | 0 |
| AS400698US | PERAC-AS1 - Colorado PERA | — | — | 0 |
| AS400766US | HRL-US-04 - HRL Laboratories, LLC | — | — | 0 |
| AS400842US | NSWAT - NetSWAT LLC | — | — | 0 |
| AS400850US | UNESCHEWED-ASN - Uneschewed | — | — | 0 |
| AS400884US | AONSERVICE - Microsoft Corporation | — | — | 0 |
| AS401078US | NOVAPULSE - NovaPulse Limited | — | — | 0 |
| AS401089US | IZT-CLOUD-USA-IN - IZT Cloud | — | — | 0 |
| AS401142US | ACERDP - AceRDP | — | — | 0 |
| AS401266US | CNSERVER - CNServer LLC | — | — | 0 |
| AS401341US | ORACLE-OC38 - Oracle Corporation | — | — | 0 |
| AS401373US | DATACANOPY-LOU01 - Sidus Group, LLC | — | — | 0 |
| AS401463US | NUCLEUSCLOUD - Nucleus Cloud LLC | — | — | 0 |
| AS401537US | POPPY-CORP - Poppy Inc | — | — | 0 |
| AS401540US | BUSINESS-BROADBAND-LLC - BUSINESS BROADBAND LLC | — | — | 0 |
| AS401621US | PXN-ENT-ASN-01 - PXN Enterprises LLC | — | — | 0 |
| AS401641US | NEAXTECH-AS - Neaxtech Productions, LLC | — | — | 0 |
| AS401741US | RIDGETOPNW - Ridgetop Networks, LLC | — | — | 0 |
| AS401838US | UNI-BROADBAND - Uni Broadband LLC | — | — | 0 |
| AS401861US | CADUCEUS-NETWORK - Caduceus Networks LLC | — | — | 0 |
| AS401864US | OPENAI - OpenAI OpCo, LLC | — | — | 0 |
| AS401884US | MIYA-TELECOM - Miya Telecom LLC | — | — | 0 |
| AS401902US | FALCON INTERNET - Falcon Internet | — | — | 0 |
| AS401913US | WAKKAWAKKA-KCS-01 - Wakka Wakka LLC | — | — | 0 |
| AS401926US | ENS-ASN01 - L3HARRIS TECHNOLOGIES, INC. | — | — | 0 |
| AS401960US | DREAMS - Dreamsync LLC | — | — | 0 |
| AS402033US | GLOWHOST-IP-RANGE-01 - GlowHost.com, LLC | — | — | 0 |
| AS402060US | CITY-OF-ENGLEWOOD - City of Englewood | — | — | 0 |
| AS402109US | THE-CIA-IS-UNNECESSARY - Flow Explosives | — | — | 0 |
| AS402176US | WIREDBLADE - Wired Blade Incorporated | — | — | 0 |