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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 | 3,139 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,173 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,242 |
| 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 | 383 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,668 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,949 |
| AS701US | UUNET - Verizon Business | 43.6M | 998 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,365 |
| 512 |
| — |
| 2 |
| AS395422US | OAKLAWNRACINGANDGAMING - OAKLAWN JOCKEY CLUB, INC. | 512 | — | 2 |
| AS26304US | COBORNS-PUB - Coborn's Inc | 512 | — | 2 |
| AS394270US | CABI-LLC-1 - Cabi LLC | 512 | — | 2 |
| AS396160US | ROYAL-REALITY-CORP - Royal Realty Corp. | 512 | — | 2 |
| AS400564US | WESTONREED - Weston Reed, Sole Proprietorship | 512 | 1 | 3 |
| AS32887US | GEHA - GEHA | 512 | — | 2 |
| AS395324US | NETBLK-CBOCS-HO-NET - Cracker Barrel Old Country Store, Inc. | 512 | — | 2 |
| AS20236US | BEAL-SERVICE-CORPORATION - Beal Service Corporation | 512 | — | 2 |
| AS394889US | RNDC-12-AS - REPUBLIC NATIONAL DISTRIBUTING COMPANY | 512 | — | 2 |
| AS53838US | BEACHBODYUS1 - Beachbody, LLC | 512 | — | 2 |
| AS397956US | NETWORK-DATA-SYSTEMS - Network Data Systems, Inc | 512 | 4.1K | 3 |
| AS46139US | METASOURCE - Metasource LLC | 512 | — | 2 |
| AS13472US | MATRIX-CCHN - Matrix Medical Network | 512 | — | 2 |
| AS36418US | HAP - HEALTH ALLIANCE PLAN OF MICHIGAN | 512 | — | 1 |
| AS16777US | NET-PROVPHP - Providence Health Plan | 512 | — | 2 |
| AS11379US | WHG11379 - Wyndham Hotel Group, LLC | 512 | — | 2 |
| AS395523US | IGSENERGY - IGS Energy | 512 | — | 2 |
| AS26402US | SANTABARBARACITY - City of Santa Barbara | 512 | 2 | 4 |
| AS395240US | CARIAD-US - CARIAD, Inc. | 512 | — | 2 |
| AS40217US | DACSNX-ISP - DACS-NX | 512 | 7 | 9 |
| AS399867US | FREEDOM-NETWORKS - Freedom Networks LLC | 512 | — | 2 |
| AS55181US | KEUKA-COLLEGE - Keuka College | 512 | — | 2 |
| AS30255US | NYGC - New York Genome Center, Inc. | 512 | — | 2 |
| AS393344US | HELIONTECHNOLOGIES - Helion Technologies, Inc | 512 | — | 2 |
| AS393302US | SJC-AN - St. John's College | 512 | — | 2 |
| AS400659US | DAVEYGROUPLLC-ASN - Davey Group LLC | 512 | 1 | 3 |
| AS32833US | SMP-1801 - Standard Motor Products, Inc | 512 | — | 2 |
| AS401606US | CDOT-ITS-01 - Colorado Department of Transportation | 512 | — | 2 |
| AS54743US | AS-TAGUCHI - Taguchi Networks LLC | 512 | — | 2 |
| AS397807US | RNT-DS-NET - Reich & Tang Deposit Solutions, LLC | 512 | — | 2 |
| AS399462US | SUMOFIBER-TEXAS - Sumofiber | 512 | — | 2 |
| AS396083US | ARVUS-160-84 - Framatome Inc. | 512 | — | 2 |
| AS36376US | AS-CHENIERE - Cheniere Energy, Inc. | 512 | — | 2 |
| AS62841US | CITY-OF-NEW-ORLEANS - City of New Orleans | 512 | — | 1 |
| AS397741US | CITYOFDUBUQUE-01 - City Of Dubuque | 512 | — | 2 |
| AS399712US | ENTEFY-ASN - Entefy Inc. | 512 | — | 2 |
| AS400421US | AS-SOFTHEON - Softheon, Inc. | 512 | — | 1 |
| AS26176US | AJA - AJA Video Systems, Inc. | 512 | — | 2 |
| AS399117US | GLI-CAR-DC1 - Greyhound Lines, Inc. | 512 | — | 2 |
| AS393853US | ICS - Digital Network Access Communications, INC | 512 | — | 1 |
| AS5329US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | 512 | — | 2 |
| AS36153US | VGC-AMER-ASN - Vertiv | 512 | — | 2 |
| AS19188US | SJ-ARMANINO-01 - Armanino LLP | 512 | — | 2 |
| AS62520US | EMASON-ASN - eMASON, Inc | 512 | — | 2 |
| AS396202US | PBXI - PBXi | 512 | — | 2 |
| AS393716US | INTRADA-AS000 - Intrada Technologies, Inc | 512 | — | 1 |