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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,666 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 234 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,491 |
| 4.9K |
| 1 |
| 4 |
| AS3081US | CITI15 - Citigroup Inc. | 4.9K | — | 19 |
| AS32845US | TEL-STAR - Tel-Star Communications, Inc | 4.9K | — | 17 |
| AS1339US | ANSBB-ASNNET-1 - Verizon Business | 4.9K | 2 | 14 |
| AS17339US | SAFELITE - Safelite Glass Corp. | 4.9K | — | 4 |
| AS4283US | CENTURYLINK-TSDS-LSVG - CenturyLink Communications, LLC | 4.9K | — | 3 |
| AS54183US | PEER39-ASN - Peer39 Inc | 4.9K | — | 15 |
| AS62958US | ADT-LLC - ADT LLC | 4.9K | — | 19 |
| AS204229US | Global_Router Global Router LLC | 4.9K | — | 8 |
| AS62994US | LCLOUD - LITE CLOUD INC | 4.9K | — | 13 |
| AS20018US | MVT-AS - Moapa Valley Telephone Company | 4.9K | 4.1K | 10 |
| AS40139US | JACKSON-TECHNICAL - Jackson Technical LLC | 4.9K | — | 17 |
| AS7352US | WECOM-INC - WECOM LLC | 4.9K | 86K | 18 |
| AS400513US | IPIPE-INC - IPIPE International, Corp. | 4.9K | 256 | 10 |
| AS12087US | SALSGIVER - Salsgiver, Inc. | 4.9K | — | 19 |
| AS1757US | LEXIS-AS - RELX inc. | 4.9K | — | 16 |
| AS25787US | ROWE-NETWORKS - Rowe Wireless Networks LLC | 4.9K | 65.5K | 11 |
| AS26673US | CORPIT-AS - Uber Technologies, Inc | 4.9K | 32 | 11 |
| AS33574US | RIVRTECH - LREMC Technologies, L.L.C. | 4.9K | 65.5K | 8 |
| AS21678US | NEW-BREED - XPO Supply Chain, Inc. | 4.9K | — | 15 |
| AS19185US | 19185 - City of Mesa | 4.9K | — | 11 |
| AS18731US | CITYSIDE-01 - Cityside Fiber | 4.9K | 131.1K | 7 |
| AS21757US | HTC-COMM - HTC Communications | 4.9K | 65.5K | 9 |
| AS11228US | ARINC - ARINC INCORPORATED | 4.9K | 257 | 14 |
| AS15347US | 15347 - IBEX Global Solutions | 4.9K | — | 11 |
| AS397563US | ADEOXTECH - ADEOX | 4.9K | — | 16 |
| AS23294US | ULM-1 - The University of Louisiana at Monroe | 4.9K | 1 | 8 |
| AS393301US | STJOHNTELCO - ST. JOHN CO-OPERATIVE TELEPHONE AND TELEGRAPH COMPANY | 4.9K | 65.5K | 10 |
| AS26001US | BLUIP - BLUIP INC | 4.9K | — | 9 |
| AS33177US | AS33177 - Kaleida Health | 4.9K | — | 7 |
| AS53780US | AS-APPRIVER - APPRIVER LLC | 4.9K | — | 8 |
| AS40393US | CROSSLINKNETWORKS - Crosslink Networks LLC | 4.9K | — | 16 |
| AS15008US | AISG - AISG | 4.9K | — | 9 |
| AS609US | EY-AS-L - Ernst & Young LLP | 4.9K | 4.1K | 5 |
| AS36306US | STANFORD-HOSPITAL - Stanford Hospital and Clinics | 4.9K | — | 14 |
| AS23367US | AS-ADN - Adaptive Data Networks, LLC | 4.9K | 65.5K | 11 |
| AS33371US | WMA-BEVERLY-HILLS - WME | 4.7K | — | 18 |
| AS38047US | TAIWAN-TELECOM - Taiwan Telecom | 4.6K | 65.8K | 30 |
| AS33650US | COMCAST-33650 - Comcast Cable Communications, LLC | 4.6K | 105 | 118 |
| AS31783US | SKRC-SOUTH01 - SKYRIDER COMMUNICATIONS LLC | 4.6K | — | 13 |
| AS4868US | PIONEER - Pioneer Hi-Bred International, Inc. | 4.6K | — | 13 |
| AS397182US | SERVICENOW-WAVE - SERVICENOW, INC. | 4.6K | 4 | 10 |
| AS54363US | BHI - Baker Hughes Holdings LLC | 4.6K | — | 17 |
| AS36487US | NEB-SANDHILLS-NET - Consolidated Telephone Company | 4.6K | — | 18 |
| AS22062US | GEOSTAR - GeoStar, LLC. | 4.6K | — | 9 |
| AS16816US | S-NETCOM - S-Net, Inc. | 4.6K | 2 | 20 |
| AS397087US | MUW-ASN-01 - Mississippi University for Women | 4.6K | — | 3 |