ARIN
Regional Internet Registry for United States, Canada & the Caribbean.
Registered ASNs
33,050
IPv4 Prefixes
85,961
IPv6 Prefixes
94,990
Largest Networksby registered prefixes
| # | ASN | Name | Prefixes |
|---|---|---|---|
| 1 | AS16509 | 🇺🇸AMAZON-02 - Amazon.com, Inc. | 3,262 |
| 2 | AS11404 | 🇺🇸AS-WAVE-1 - Wave Broadband | 909 |
| 3 | AS6079 | 🇺🇸RCN-AS - RCN | 873 |
| 4 | AS22773 | 🇺🇸ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc. | 856 |
| 5 | AS2914 | 🇺🇸NTT-DATA-2914 - NTT America, Inc. | 739 |
| 6 | AS7029 | 🇺🇸WINDSTREAM - Windstream Communications LLC | 635 |
| 7 | AS749 | 🇺🇸DNIC-AS-00749 - United States Department of Defense (DoD) | 617 |
| 8 | AS174 | 🇺🇸COGENT-174 - Cogent Communications, LLC | 616 |
| 9 | AS29802 | 🇺🇸HVC-AS - HIVELOCITY, Inc. | 532 |
| 10 | AS20473 | 🇺🇸AS-VULTR - The Constant Company, LLC | 510 |
| 11 | AS396356 | 🇺🇸LATITUDE-SH - Latitude.sh | 478 |
| 12 | AS36692 | 🇺🇸CISCO-UMBRELLA - Cisco OpenDNS, LLC | 442 |
| 13 | AS3356 | 🇺🇸LEVEL3 - Level 3 Parent, LLC | 430 |
| 14 | AS21859 | 🇺🇸ZEN-ECN - Zenlayer Inc | 419 |
| 15 | AS7018 | 🇺🇸ATT-INTERNET4 - AT&T Enterprises, LLC | 355 |
| 16 | AS5650 | 🇺🇸FRONTIER-FRTR - Frontier Communications of America, Inc. | 335 |
| 17 | AS54994 | 🇨🇦ML-1432-54994 - Meteverse Limited. | 334 |
| 18 | AS14593 | 🇺🇸SPACEX-STARLINK - Space Exploration Technologies Corporation | 312 |
| 19 | AS399077 | 🇺🇸TERAEXCH - Tcloudnet | 308 |
| 20 | AS400619 | 🇺🇸AROSS-AS - AROSSCLOUD INC. | 307 |
| 21 | AS32167 | 🇺🇸LSHIY-USER-CONTENT - LSHIY LLC | 294 |
| 22 | AS13335 | 🇺🇸CLOUDFLARENET - Cloudflare, Inc. | 285 |
| 23 | AS5065 | 🇺🇸BUNNY-COMMUNICATIONS-GLOBAL - Bunny Communications | 274 |
| 24 | AS3561 | 🇺🇸CENTURYLINK-LEGACY-SAVVIS - CenturyLink Communications, LLC | 265 |
| 25 | AS399073 | 🇺🇸TBB-ASN - BUNNY TECHNOLOGY LLC | 258 |
| 26 | AS396982 | 🇺🇸GOOGLE-CLOUD-PLATFORM - Google LLC | 254 |
| 27 | AS26383 | 🇺🇸ASNET - Baxet Group Inc. | 242 |
| 28 | AS53813 | 🇺🇸ZSCALER-INC - ZSCALER, INC. | 241 |
| 29 | AS395793 | 🇺🇸ARISK-COMMUNICATIONS-INC - Arisk Communications inc. | 238 |
| 30 | AS30058 | 🇺🇸FDCSERVERS - FDCservers.net | 236 |
| 31 | AS14265 | 🇺🇸US-TELEPACIFIC - TPx Communications | 229 |
| 32 | AS63139 | 🇺🇸BEDGE-CO-LIMITED - BEDGE CO LIMITED | 225 |
| 33 | AS14618 | 🇺🇸AMAZON-AES - Amazon.com, Inc. | 221 |
| 34 | AS13768 | 🇨🇦COGECO-PEER1 - Aptum Technologies | 212 |
| 35 | AS3360 | 🇺🇸DXC-AS3360 - DXC US Latin America Corporation | 183 |
| 36 | AS63199 | 🇺🇸CDSC-AS1 - CDS Global Cloud Co., Ltd | 183 |
| 37 | AS55256 | 🇺🇸NETSKOPE - Netskope Inc | 181 |
| 38 | AS852 | 🇨🇦ASN852 - TELUS Communications Inc. | 174 |
| 39 | AS7155 | 🇺🇸VIASAT-SP-BACKBONE - ViaSat,Inc. | 169 |
| 40 | AS812 | 🇨🇦ROGERS-COMMUNICATIONS - Rogers Communications Canada Inc. | 165 |
| 41 | AS7381 | 🇺🇸SRS-6-Z-7381 - BroadbandONE, LLC | 165 |
| 42 | AS10753 | 🇺🇸LUMEN-LEGACY-L3-CUSTOMER-SHARED-USE - Level 3 Parent, LLC | 164 |
| 43 | AS931 | 🇸🇬HYONIX - Hyonix | 163 |
| 44 | AS401362 | 🇺🇸HOST4NERD - HOST4NERD LLC | 161 |
| 45 | AS40676 | 🇺🇸AS40676 - Psychz Networks | 151 |
| 46 | AS701 | 🇺🇸UUNET - Verizon Business | 146 |
| 47 | AS397423 | 🇺🇸TIER-NET - Tier.Net Technologies LLC | 143 |
| 48 | AS401783 | 🇺🇸TOKALA-COMMUNICATIONS - TOKALA COMMUNICATIONS INC. | 142 |
| 49 | AS17378 | 🇺🇸AS17378 - TierPoint, LLC | 139 |
| 50 | AS6461 | 🇺🇸ZAYO-6461 - Zayo Bandwidth | 137 |
| 51 | AS16625 | 🇺🇸AKAMAI-AS - Akamai Technologies, Inc. | 135 |
| 52 | AS63023 | 🇺🇸AS-GLOBALTELEHOST - GTHost | 135 |
| 53 | AS7393 | 🇺🇸CYBERCON - CYBERCON, INC. | 134 |
| 54 | AS31898 | 🇺🇸ORACLE-BMC-31898 - Oracle Corporation | 134 |
| 55 | AS209 | 🇺🇸CENTURYLINK-US-LEGACY-QWEST - CenturyLink Communications, LLC | 133 |
| 56 | AS22616 | 🇺🇸ZSCALER-SJC1 - ZSCALER, INC. | 131 |
| 57 | AS54801 | 🇺🇸ZILLION-NETWORK - Zillion Network Inc. | 129 |
| 58 | AS984 | 🇺🇸OWS-NETWORK - OCTOPUS WEB SOLUTION INC | 126 |
| 59 | AS63473 | 🇺🇸HOSTHATCH - HostHatch, LLC | 124 |
| 60 | AS7979 | 🇺🇸SERVERS-COM - Servers.com, Inc. | 120 |
| 61 | AS36352 | 🇺🇸AS-COLOCROSSING - HostPapa | 119 |
| 62 | AS401701 | 🇺🇸COGNETCLOUD-2 - cognetcloud INC | 119 |
| 63 | AS21769 | 🇺🇸AS-COLOAM - Colocation America Corporation | 113 |
| 64 | AS40285 | 🇺🇸NORTHLAND-CABLE - NORTHLAND CABLE TELEVISION INC. | 113 |
| 65 | AS56 | 🇺🇸DNIC-AS-00056 - United States Department of Defense (DoD) | 107 |
| 66 | AS3549 | 🇺🇸LVLT-3549 - Level 3 Parent, LLC | 106 |
| 67 | AS401152 | 🇺🇸ADCIL-ASN-01 - Ace Data Centers II, L.L.C. | 106 |
| 68 | AS64267 | 🇺🇸AS-SPRIOUS - Sprious LLC | 105 |
| 69 | AS6407 | 🇨🇦PRIMUS-AS6407 - Primus Telecommunications Canada Inc. | 101 |
| 70 | AS376 | 🇨🇦RISQ-AS - Reseau d'Informations Scientifiques du Quebec (RISQ Inc.) | 100 |
| 71 | AS7922 | 🇺🇸COMCAST-7922 - Comcast Cable Communications, LLC | 99 |
| 72 | AS401650 | 🇺🇸VL - 888 Ventures LLC | 98 |
| 73 | AS3573 | 🇺🇸ACCENTURE - Accenture LLP | 97 |
| 74 | AS54483 | 🇺🇸GEOLINKS-AS - GeoLinks | 96 |
| 75 | AS13649 | 🇺🇸ASN-FLEXENTIAL - Flexential Colorado Corp. | 93 |
| 76 | AS46261 | 🇺🇸QUICKPACKET - QuickPacket, LLC | 92 |
| 77 | AS19318 | 🇺🇸IS-AS-1 - Interserver, Inc | 87 |
| 78 | AS17306 | 🇺🇸RISE-BROADBAND - JAB Wireless, INC. | 86 |
| 79 | AS26548 | 🇺🇸PUREVOLTAGE-INC - PureVoltage Hosting Inc. | 86 |
| 80 | AS32043 | 🇺🇸NEO-FIBER-01 - NeoFiber Communications inc. | 86 |
| 81 | AS40065 | 🇺🇸CNSERVERS - CNSERVERS LLC | 86 |
| 82 | AS62468 | 🇺🇸HKCLOUDX - VpsQuan L.L.C. | 86 |
| 83 | AS11776 | 🇺🇸ATLANTICBB-JOHNSTOWN - Breezeline | 85 |
| 84 | AS14061 | 🇺🇸DIGITALOCEAN-ASN - DigitalOcean, LLC | 85 |
| 85 | AS11696 | 🇺🇸NBS11696 - Fusion, LLC | 84 |
| 86 | AS4181 | 🇺🇸TDS-AS - TDS TELECOM | 83 |
| 87 | AS63150 | 🇺🇸BAGE - BAGE CLOUD LLC | 82 |
| 88 | AS270 | 🇺🇸AS270 - National Aeronautics and Space Administration | 81 |
| 89 | AS30633 | 🇺🇸LEASEWEB-USA-WDC - Leaseweb USA, Inc. | 81 |
| 90 | AS55201 | 🇺🇸SKYQUANTUM-INTERNET-SERVICE - SkyQuantum Internet Service | 81 |
| 91 | AS2828 | 🇺🇸XO-AS15 - Verizon Business | 80 |
| 92 | AS25653 | 🇺🇸FORTRESSITX - FortressITX | 80 |
| 93 | AS395447 | 🇺🇸HONORHEALTH - HonorHealth | 77 |
| 94 | AS11179 | 🇺🇸ARYAKA-ARIN - Aryaka Networks, Inc. | 76 |
| 95 | AS63099 | 🇺🇸MADEALA TELECOM TECHNOLOGY - MADEALA TELECOM TECHNOLOGY INC | 76 |
| 96 | AS7342 | 🇺🇸VERISIGN-AS - VeriSign Infrastructure & Operations | 75 |
| 97 | AS46475 | 🇺🇸LIMESTONENETWORKS - Limestone Networks, Inc. | 75 |
| 98 | AS398288 | 🇨🇦CL-IPTRANSIT - Cluster Logic Inc | 75 |
| 99 | AS32475 | 🇺🇸SINGLEHOP-LLC - Internap Holding LLC | 73 |
| 100 | AS721 | 🇺🇸DNIC-ASBLK-00721-00726 - United States Department of Defense (DoD) | 72 |