AS6079 — RCN-AS - RCN

Network type: residential

AS6079 announces 1,565 IPv4 prefixes covering 4,697,856 addresses and 118 IPv6 prefixes.

About this network

AS6079 is the legacy RCN network, now part of Astound Broadband — a US residential cable and fibre ISP built from RCN, Grande, Wave and enTouch.

What it's used for

• Cable and fibre home internet for consumers in metros across the US, including parts of the Northeast, Chicago, DC, Texas and the West Coast.

Notable

• A large "eyeball" network: addresses here are home connections, commonly behind carrier-grade NAT, not servers.
• Astound is one of the larger US "overbuilder" cable operators, competing head-to-head with incumbents rather than holding a monopoly franchise.

Interesting

• The AS6079 origin dates to RCN, one of the earliest competitive fibre/cable overbuilders, before the Astound consolidation of RCN, Grande and Wave.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 5.151.103.0/24
• 5.151.122.0/24
• 5.151.126.0/24
• 5.151.128.0/23
• 5.151.150.0/24
• 5.151.192.0/22
• 5.151.224.0/23
• 5.151.243.0/24
• 5.151.253.0/24
• 5.182.185.0/24
• 9.142.64.0/20
• 9.142.80.0/21
• 9.142.88.0/22
• 9.142.92.0/23
• 9.142.94.0/24
• 9.142.128.0/18
• 9.142.224.0/19
• 9.151.128.0/18
• 9.151.236.0/22
• 9.232.80.0/20
• 9.232.96.0/19
• 9.249.0.0/21
• 9.249.72.0/22
• 13.143.110.0/23
• 16.5.183.0/24
• 16.220.136.0/22
• 16.221.96.0/19
• 16.221.163.0/24
• 16.221.201.0/24
• 16.222.13.0/24
• 16.222.24.0/24
• 16.223.193.0/24
• 16.223.249.0/24
• 16.225.192.0/18
• 16.227.128.0/17
• 23.26.3.0/24
• 23.26.40.0/24
• 23.26.56.0/22
• 23.26.69.0/24
• 23.26.78.0/24
• 23.26.82.0/24
• 23.26.89.0/24
• 23.26.157.0/24
• 23.26.168.0/21
• 23.26.195.0/24
• 23.26.199.0/24
• 23.26.212.0/22
• 23.26.218.0/24
• 23.26.222.0/24
• 23.26.233.0/24
• 23.26.248.0/24
• 23.27.128.0/23
• 23.28.0.0/18
• 23.28.64.0/19
• 23.145.68.0/24
• 23.145.76.0/24
• 23.145.124.0/24
• 23.145.132.0/24
• 23.145.228.0/24
• 23.153.64.0/24
• 23.182.129.0/24
• 23.184.240.0/24
• 23.229.21.0/24
• 23.229.85.0/24
• 23.229.89.0/24
• 23.229.91.0/24
• 23.230.18.0/23
• 23.230.74.0/23
• 23.230.167.0/24
• 23.230.174.0/24
• 23.230.184.0/23
• 23.230.216.0/23
• 23.231.0.0/24
• 23.231.16.0/23
• 24.35.96.0/19
• 24.42.229.0/24
• 24.42.230.0/23
• 24.42.232.0/21
• 24.42.240.0/20
• 24.136.0.0/19
• 24.148.0.0/18
• 24.148.64.0/19
• 24.214.128.0/20
• 24.214.187.0/24
• 24.214.188.0/23
• 24.214.190.0/24
• 31.56.33.0/24
• 31.56.70.0/24
• 31.98.140.0/22
• 31.98.144.0/20
• 31.98.160.0/19
• 31.98.192.0/18
• 31.105.0.0/18
• 31.105.64.0/19
• 31.105.128.0/17
• 31.220.243.0/24
• 37.202.206.0/24
• 37.203.146.0/24
• 37.203.168.0/23
• 37.203.170.0/24

and 1,583 more.

Upstream networks

• AS1299 Arelion Sweden AB
• AS3356 Level 3 Parent, LLC
• AS6939 Hurricane Electric LLC
• AS9002 RETN Limited
• AS3257 GTT Communications Inc.
• AS34549 meerfarbig GmbH & Co. KG
• AS22652 Videotron Ltee
• AS577 Bell Canada
• AS24482 SG.GS
• AS2497 Internet Initiative Japan Inc.
• AS3303 Swisscom (Schweiz) AG
• AS11164 Internet2
• AS33891 Core-Backbone GmbH
• AS4637 Telstra Global
• AS293 ESnet
• AS13030 Init7 (Switzerland) Ltd.
• AS29632 Netassist International EOOD
• AS6327 Shaw Communications
• AS6830 Liberty Global Europe Holding B.V.
• AS35280 F5 Networks SARL

Downstream networks

• AS11878 tzulo, inc.
• AS398465 Rackdog, LLC
• AS8092 Access Media Holdings, LLC
• AS4133 Bitwise Internet Technologies, Inc.
• AS998 HypeStatus Inc
• AS398427 Markley Network Services, LLC
• AS19656 Lehigh Secure Data LLC
• AS14713 Hosted Backbone
• AS17190 Washington Metropolitan Area Transit Authority
• AS11939 THE MATHWORKS, INC.
• AS32461 ARE-East River Science Park, LLC
• AS393674 DEACONESS HOSPITAL, Inc.
• AS396269 Buckeye Partners L.P.
• AS402251 Apogee Telecom Inc.
• AS401993 Provocative Science Holdings, Inc.
• AS40953 River City Wireless, INC.
• AS19480 CHICAGO PUBLIC LIBRARY
• AS36673 Vectren Utility Holdings, Inc.
• AS33729 Jacob K. Javits Convention Center
• AS5008 Boldyn Networks Transit US LLC
• AS16478 Colonial IU 20
• AS46279 TechPro, Inc
• AS41264 Google Switzerland GmbH
• AS29828 ANIXTER INC.
• AS46587 Cerberus Capital Management LP

Adjacent networks

• AS1299 Arelion Sweden AB
• AS3356 Level 3 Parent, LLC
• AS6939 Hurricane Electric LLC
• AS9002 RETN Limited
• AS3257 GTT Communications Inc.
• AS34549 meerfarbig GmbH & Co. KG
• AS22652 Videotron Ltee
• AS577 Bell Canada
• AS24482 SG.GS
• AS11164 Internet2
• AS3303 Swisscom (Schweiz) AG
• AS2497 Internet Initiative Japan Inc.
• AS33891 Core-Backbone GmbH
• AS4637 Telstra Global
• AS14713 Hosted Backbone
• AS11878 tzulo, inc.
• AS971 PureVoltage Hosting Inc.
• AS398465 Rackdog, LLC
• AS398427 Markley Network Services, LLC
• AS293 ESnet
• AS8092 Access Media Holdings, LLC
• AS4133 Bitwise Internet Technologies, Inc.
• AS998 HypeStatus Inc
• AS19656 Lehigh Secure Data LLC
• AS17190 Washington Metropolitan Area Transit Authority

Routing security

• RPKI: 2,921 valid, 22 invalid and 218 not-found announcements; 3,007 ROAs.
• ASPA: none published.
• IRR: 76% of announcements registered; 5,708 route objects.
• Listed in as-sets: AS-COMPUTEARIZONA, AS-COMPUTEAZ, AS-CWCTRANSIT, AS-ENA, AS-GTTCUST, AS-GTTCUST6, AS-HURRICANEV6, AS-LSD-AS-PEERS, AS-PIGNETWORK, AS-RCN-BACKBONE, AS-TMNET-PEERS, AS16559:AS-PEERS, AS25091:AS-PEERS, AS29169:AS-PEERS4, AS29169:AS-PEERS6, AS3303:AS-SWCMPEERS, AS37164:AS-ALL, AS393562:AS-CUST-PEERS, AS393731:AS-PEERS, AS399861:AS-ALL, AS62760:AS-DECIX-ORD-CONNECTED, AS62760:AS-DECIX-ORD-RS, AS62760:AS-DECIX-ORD-RS-V6, AS63034:AS-DECIX-NYC-CONNECTED, AS63034:AS-DECIX-NYC-RS.

Internet exchanges

• Equinix Internet Exchange Ashburn — Ashburn, United States
• Equinix Internet Exchange Chicago — Chicago, United States
• DE-CIX New York — New York, United States
• New York International Internet Exchange — New York, United States
• Equinix Internet Exchange New York — New York, United States
• Boston Internet Exchange — Boston, United States
• DE-CIX Chicago — Chicago, United States