AS13742 — CENCOM-NEBR

AS13742 announces 1 IPv4 prefixes covering 8,192 addresses and 0 IPv6 prefixes.

About this network

The netname joins two sets of initials and the reverse names use only the second.

What it's used for

• A cable and internet provider. 8,192 addresses in the single IPv4 prefix 70.37.192.0/19, two observed BGP neighbours, and no IPv6 announced.

Notable

• The AS handle is CENCOM-NEBR, the company plus an abbreviated state.
• The block is netname NNTC-CENCOM, joining a second set of initials in front of the company's own.
• The one address that answered reads 70-37-215-254.nntc.net, under the other set of initials.
• The hostname hyphenates the address in forward order.
• First seen in the routing archive on 2001-04-25, an actual date rather than the archive's start.
• Three addresses were queried for reverse DNS and one returned a name.

Interesting

• A /19 announced whole, with no smaller pieces alongside it, is unusual in this range. Eight thousand addresses in a single route means nothing has ever been carved off for a customer or a second site and left announced separately.
• The registry keeps one name and the DNS keeps the other, so a reader following the address arrives at a different brand depending on which system they ask. Joining both in the netname is the only place the two are connected.
• Two neighbours for a network of this size is enough to survive one of them failing and no more, which is the usual shape for a cable operator with a single serving area.

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

Announced prefixes

• 70.37.192.0/19

Upstream networks

• AS32867 Long Lines Internet
• AS16851 NebraskaLink

Adjacent networks

• AS32867 Long Lines Internet
• AS16851 NebraskaLink