AS11426 — TWC-11426-CAROLINAS

Network type: residential

AS11426 announces 277 IPv4 prefixes covering 4,388,352 addresses and 11 IPv6 prefixes.

About this network

TWC-11426-CAROLINAS is one of the regional cable-broadband ASes Charter Communications inherited from Time Warner Cable. It carries residential Spectrum subscribers, principally in the Carolinas, and it is one of the larger eyeball networks in this AS range.

What it's used for

RIS shows 210 announced IPv4 prefixes covering roughly 4.7 million addresses, plus 9 IPv6 prefixes. The IPv4 inventory is built from big aggregates — several /14s and /15s, such as 172.72.0.0/14, 71.68.0.0/14 and 174.108.0.0/14 — which is the signature of a mass-market access network handing out address pools to subscriber CPE, not of a hosting estate carving out per-customer /24s.

Reverse DNS settles it. Sampled addresses across those aggregates resolve to syn-172-072-000-005.res.spectrum.com and siblings: the res. label is Spectrum's residential-subscriber zone, and the pattern repeats consistently across unrelated blocks. The prefix registrants agree, with the large blocks registered directly to Charter Communications Inc under the RRMA handle. Only 81 observed neighbours against nearly five million addresses is exactly the ratio expected of an eyeball network: it buys upstream and peers, but it is not selling transit at scale.

Notable

The consistent .res.spectrum.com naming makes this a high-confidence residential classification. It is the access network itself, so geolocation within the Carolinas footprint is meaningful at the block level rather than for the AS as a whole.

Interesting

Two stray /24s seen in the RIS window, 37.153.154.0/24 (RIPE) and 181.214.13.0/24 (LACNIC), are registered not to Charter but to an IP-leasing marketplace maintainer. Against 200-plus self-registered Charter aggregates they are a footnote, not a pattern, and they do not change what this AS is.

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

Announced prefixes

• 24.25.0.0/18
• 24.27.240.0/21
• 24.27.248.0/22
• 24.27.254.0/23
• 24.28.224.0/19
• 24.31.192.0/19
• 24.74.0.0/16
• 24.88.0.0/16
• 24.93.64.0/19
• 24.106.168.0/21
• 24.106.176.0/20
• 24.106.192.0/20
• 24.106.208.0/22
• 24.106.212.0/23
• 24.106.214.0/24
• 24.106.216.0/21
• 24.123.144.0/21
• 24.123.176.0/20
• 24.142.192.0/18
• 24.143.208.0/20
• 24.162.224.0/19
• 24.163.0.0/17
• 24.167.128.0/18
• 24.168.160.0/19
• 24.168.192.0/18
• 24.171.160.0/19
• 24.172.0.0/17
• 24.172.224.0/20
• 24.172.248.0/22
• 24.172.252.0/24
• 24.172.254.0/23
• 24.199.128.0/18
• 24.199.192.0/20
• 24.199.208.0/21
• 24.199.216.0/23
• 24.199.218.0/24
• 24.199.220.0/22
• 24.199.224.0/19
• 24.206.32.0/19
• 24.211.32.0/19
• 24.211.64.0/18
• 24.211.128.0/17
• 37.153.154.0/24
• 38.92.51.0/24
• 38.134.115.0/24
• 38.141.168.0/24
• 45.36.0.0/15
• 45.43.132.0/24
• 45.45.152.0/22
• 45.81.26.0/23
• 45.94.152.0/24
• 45.158.192.0/22
• 46.20.212.0/22
• 47.231.0.0/19
• 51.146.200.0/21
• 51.194.0.0/21
• 62.72.164.0/24
• 64.20.209.0/24
• 64.50.167.0/24
• 64.84.116.0/22
• 64.183.154.0/23
• 64.183.158.0/23
• 65.28.144.0/21
• 65.184.0.0/16
• 65.187.0.0/16
• 65.188.0.0/16
• 65.190.0.0/15
• 66.26.0.0/16
• 66.56.96.0/19
• 66.56.128.0/18
• 66.56.192.0/19
• 66.56.224.0/20
• 66.56.240.0/21
• 66.56.252.0/22
• 66.57.0.0/18
• 66.57.64.0/19
• 66.57.96.0/20
• 66.57.113.0/24
• 66.57.114.0/23
• 66.57.116.0/22
• 66.57.120.0/21
• 66.57.128.0/21
• 66.57.136.0/22
• 66.57.140.0/23
• 66.57.142.0/24
• 66.57.144.0/20
• 66.57.160.0/19
• 66.57.192.0/18
• 66.61.192.0/18
• 66.93.108.0/22
• 66.93.220.0/22
• 67.48.112.0/20
• 69.63.88.0/24
• 69.132.0.0/16
• 69.133.128.0/18
• 69.133.224.0/19
• 70.60.96.0/19
• 70.60.192.0/18
• 70.61.64.0/18
• 70.61.192.0/19

and 188 more.

Upstream networks

• AS7843 Charter Communications Inc

Downstream networks

• AS15153 StarVision, Inc.
• AS81 MCNC
• AS19635 Sandhill Telephone Cooperative, Inc.
• AS398766 TriCoLink, Inc.
• AS36651 Catholic HealthCare Partners
• AS19115 Charter Communications LLC
• AS18495 Novant Health Inc.
• AS2003 Electric Power Research Institute
• AS40845 NTINet Inc.
• AS19157 Charter Communications LLC
• AS17320 Coastal Federal Credit Union
• AS395774 Eastern Shore Communications, LLC
• AS35971 CompuNet, Inc.
• AS53499 McLeod Health
• AS11777 North Carolina Adminstrative Office of the Courts
• AS10843 Advanced Internet Technologies
• AS138007 LENOVO (AUSTRALIA & NEW ZEALAND) PTY LIMITED
• AS397827 ALLEGACY FEDERAL CREDIT UNION
• AS2011 Wells Fargo Bank, N.A.
• AS19532 Trilliant Networks Inc.
• AS32795 HEARST CORPORATION
• AS203949 Husqvarna AB
• AS19216 Revlon Consumer Products Corp.
• AS394124 SHOE SHOW Inc.
• AS20457 Verdinet LLC

Adjacent networks

• AS7843 Charter Communications Inc
• AS15153 StarVision, Inc.
• AS81 MCNC
• AS19635 Sandhill Telephone Cooperative, Inc.
• AS398766 TriCoLink, Inc.
• AS36651 Catholic HealthCare Partners
• AS19115 Charter Communications LLC
• AS18495 Novant Health Inc.
• AS2003 Electric Power Research Institute
• AS40845 NTINet Inc.
• AS17320 Coastal Federal Credit Union
• AS19157 Charter Communications LLC
• AS395774 Eastern Shore Communications, LLC
• AS35971 CompuNet, Inc.
• AS11777 North Carolina Adminstrative Office of the Courts
• AS53499 McLeod Health
• AS10843 Advanced Internet Technologies
• AS138007 LENOVO (AUSTRALIA & NEW ZEALAND) PTY LIMITED
• AS397827 ALLEGACY FEDERAL CREDIT UNION
• AS2011 Wells Fargo Bank, N.A.
• AS19532 Trilliant Networks Inc.
• AS32795 HEARST CORPORATION
• AS203949 Husqvarna AB
• AS19216 Revlon Consumer Products Corp.
• AS394124 SHOE SHOW Inc.