AS13343 — TWC-13343-CHARLOTTE

AS13343 announces 4 IPv4 prefixes covering 17,408 addresses and 1 IPv6 prefixes.

About this network

Four company brands are visible at once: one in the handle, one in the netnames, one in the registrant, one in DNS.

What it's used for

• A regional cable network in Charlotte. 17,408 addresses across twelve IPv4 prefixes, one observed BGP neighbour, and the IPv6 block 2001:1998:8d0::/44.

Notable

• Netnames include ROAD-RUNNER-1, ROAD-RUNNER-5, RRMA and CC04.
• Registrants alternate between Charter Communications Inc and Charter Communications LLC across neighbouring blocks.
• All eighteen sampled addresses resolve, to names like syn-024-024-068-000.inf.spectrum.com with every octet padded to three digits.
• Only one BGP neighbour is observed for a network of this size.

Interesting

• Zero-padded octets make every hostname the same length, which sorts correctly in a plain text file and lines up in a terminal. It is a choice made by someone who expected to read these names in bulk.
• An older cable brand survives in the netnames, its parent's initials in the shorter ones, the current corporate name in the registrant, and the current consumer brand in DNS. Each field was updated at a different point in the same company's history.
• Inc and LLC on adjacent blocks are two registrations made under two legal forms of the same business, neither of which was reconciled afterwards.
• One neighbour for seventeen thousand addresses is a regional network that reaches the rest of the internet entirely through its own parent.

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

Announced prefixes

• 24.24.64.0/19
• 24.166.144.0/20
• 71.66.60.0/22
• 159.111.32.0/20
• 2001:1998:8d0::/44

Upstream networks

• AS7843 Charter Communications Inc

Adjacent networks

• AS7843 Charter Communications Inc