AS7459 — GRANDECOM-AS1 - Grande Communications Networks, LLC

Network type: residential

AS7459 announces 251 IPv4 prefixes covering 1,231,616 addresses and 15 IPv6 prefixes.

About this network

GRANDECOM-AS1 is Grande Communications Networks, the San Marcos, Texas cable and fibre operator that now trades as Astound Broadband powered by Grande. It serves internet, TV and phone across Texas markets including Austin, San Antonio, Dallas and Corpus Christi.

What it's used for

• Residential and small-business broadband. This is the eyeball AS: reverse DNS on its space is dominated by subscriber pools such as …dyn.grandenetworks.net and …static.grandenetworks.net.
• It also carries business-access space inherited through the Astound group, with hostnames still bearing older brands like megapath.net and globalcapacity.com.

Notable

• The routed footprint is large for a regional operator: roughly 1,700 prefixes and about 1.2 million IPv4 addresses, almost all of it end-user access rather than servers.
• Grande was folded into the Astound Broadband group (alongside RCN, Wave and enTouch) and rebranded, but the original 1996 ARIN ASN and its grandenetworks.net naming survive in the routing table.

Interesting

• Because the AS spans several acquired networks, a single reverse-DNS sweep of AS7459 turns up four different legacy provider domains. The routing table remembers corporate history long after the marketing does.

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

Announced prefixes

• 16.5.56.0/22
• 16.5.64.0/22
• 16.216.32.0/22
• 16.221.52.0/22
• 24.155.0.0/21
• 24.155.8.0/23
• 24.155.11.0/24
• 24.155.12.0/22
• 24.155.16.0/20
• 24.155.32.0/21
• 24.155.40.0/23
• 24.155.42.0/24
• 24.155.44.0/22
• 24.155.48.0/20
• 24.155.64.0/19
• 24.155.96.0/24
• 24.155.98.0/23
• 24.155.100.0/22
• 24.155.104.0/21
• 24.155.112.0/21
• 24.155.120.0/23
• 24.155.122.0/24
• 24.155.124.0/22
• 24.155.128.0/20
• 24.155.144.0/24
• 24.155.146.0/23
• 24.155.148.0/22
• 24.155.152.0/21
• 24.155.160.0/19
• 24.155.192.0/18
• 46.33.15.0/24
• 51.194.155.0/24
• 51.194.158.0/24
• 51.194.165.0/24
• 51.194.166.0/24
• 52.129.0.0/21
• 57.132.128.0/17
• 64.51.4.0/22
• 64.51.16.0/22
• 64.51.28.0/22
• 64.105.64.0/21
• 64.105.112.0/21
• 64.105.136.0/21
• 64.105.144.0/21
• 64.105.240.0/21
• 64.139.16.0/20
• 64.144.32.0/19
• 64.144.64.0/19
• 64.144.96.0/20
• 64.144.144.0/20
• 64.144.240.0/20
• 64.145.32.0/19
• 64.189.74.0/23
• 64.189.76.0/22
• 65.36.0.0/19
• 65.36.32.0/23
• 65.36.35.0/24
• 65.36.36.0/22
• 65.36.41.0/24
• 65.36.42.0/23
• 65.36.44.0/23
• 65.36.47.0/24
• 65.36.48.0/21
• 65.36.56.0/22
• 65.36.62.0/23
• 65.36.64.0/22
• 65.36.68.0/23
• 65.36.71.0/24
• 65.36.72.0/21
• 65.36.80.0/20
• 65.36.96.0/19
• 65.111.96.0/19
• 66.80.64.0/19
• 66.80.192.0/18
• 66.90.128.0/17
• 66.92.76.0/22
• 66.92.232.0/22
• 66.95.128.0/18
• 66.95.224.0/19
• 66.134.0.0/18
• 66.134.96.0/19
• 66.134.128.0/17
• 66.167.8.0/22
• 66.167.172.0/22
• 66.196.0.0/19
• 66.253.56.0/22
• 67.102.192.0/19
• 67.198.0.0/23
• 67.198.3.0/24
• 67.198.4.0/22
• 67.198.8.0/21
• 67.198.16.0/20
• 67.198.32.0/19
• 67.198.64.0/18
• 68.165.112.0/20
• 68.167.80.0/20
• 68.167.96.0/19
• 68.167.160.0/20
• 68.167.208.0/20
• 68.167.224.0/20

and 166 more.

Upstream networks

• AS1299 Arelion Sweden AB
• AS6939 Hurricane Electric LLC
• AS3257 GTT Communications Inc.
• AS14907 Wikimedia Foundation Inc.
• AS3356 Level 3 Parent, LLC

Downstream networks

• AS63483 Skynet
• AS19903 Reach Broadband LLC
• AS36748 St. Edwards University
• AS20042 Cutter Communications, Inc.
• AS402138 Apogee Telecom Inc.
• AS55103 Thin-nology, LLC
• AS39971 Bell IT Services, Inc.
• AS30674 Baylor University
• AS400097 National Wi-Fi
• AS397374 Loan Science
• AS393769 Leander Independent School District
• AS54933 Austin Independent School District
• AS401085 Lower Colorado River Authority
• AS14789 Cloudflare, Inc.
• AS13392 Region 18 Education Service Center
• AS13606 City of Leander, Texas
• AS18693 University of Colorado Hospital
• AS399885 Evans & Sutherland Computer Corporation
• AS402041 Trinity Network Solutions
• AS39974 Altitude ISP LLC
• AS14997 Ascension Technologies
• AS397021 Belton Independent School District
• AS22768 SYNERGY BROADBAND
• AS21851 Kainos Technologies LLC
• AS54199 City of Frisco

Adjacent networks

• AS1299 Arelion Sweden AB
• AS6939 Hurricane Electric LLC
• AS3257 GTT Communications Inc.
• AS14907 Wikimedia Foundation Inc.
• AS3356 Level 3 Parent, LLC
• AS63483 Skynet
• AS14713 Hosted Backbone
• AS19903 Reach Broadband LLC
• AS20042 Cutter Communications, Inc.
• AS36748 St. Edwards University
• AS55103 Thin-nology, LLC
• AS402138 Apogee Telecom Inc.
• AS39971 Bell IT Services, Inc.
• AS30674 Baylor University
• AS400097 National Wi-Fi
• AS397374 Loan Science
• AS393769 Leander Independent School District
• AS54933 Austin Independent School District
• AS401085 Lower Colorado River Authority
• AS14789 Cloudflare, Inc.
• AS13392 Region 18 Education Service Center
• AS13606 City of Leander, Texas
• AS402041 Trinity Network Solutions
• AS399885 Evans & Sutherland Computer Corporation
• AS18693 University of Colorado Hospital

Routing security

• RPKI: 1,264 valid, 0 invalid and 492 not-found announcements; 209 ROAs.
• ASPA: none published.
• IRR: 9% of announcements registered; 512 route objects.
• Listed in as-sets: AS-AISDPROVIDERS, AS-GRANDE, AS-GTTCUST, AS-GTTCUST6, AS11821:AS-PEERS, AS14620:AS-PEERS, AS3491:AS-CUSTOMERS-NA, AS401228:AS-PEERS.

Internet exchanges

• Equinix Internet Exchange Dallas — Dallas, United States