AS14438 — USA-CHOICE-OIL-CITY

AS14438 announces 6 IPv4 prefixes covering 2,560 addresses and 0 IPv6 prefixes.

About this network

The reverse zone is a map: every hostname names the town the address serves.

What it's used for

• A regional ISP's network. 2,560 addresses across six IPv4 prefixes, with two observed BGP neighbours and no IPv6 announced.

Notable

• Four blocks carry the netname USACHOICE-BLK1 and two carry USACHOICE-BLK2.
• Fifteen of eighteen sampled addresses answered, in the form h190.221.oc.usachoice.net.
• Three town labels appear in those names, one abbreviated to two letters and two spelled out.
• The AS handle names one of those towns directly.

Interesting

• Each hostname is four parts: a marker for host, the third part of the address, the town, and the domain. That third number is the only thing distinguishing one block's names from another's, so the zone is generated per town from the address plan.
• Naming by town rather than by equipment is what a rural ISP does when its network is a set of separate small systems joined by leased lines. Support staff need to know which town is down, not which router.
• One town is abbreviated to two letters and the others are not, which dates them: the short one was configured when short names were the convention, and the others were added after it stopped mattering.
• Two netnames for six blocks split the estate into the space obtained first and the space obtained later, in two separate parts of the address range. The gaps within each are customers who left.

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

Announced prefixes

• 66.71.192.0/22
• 66.71.200.0/24
• 66.71.218.0/23
• 66.71.221.0/24
• 66.198.224.0/24
• 66.198.227.0/24

Upstream networks

• AS26801 Zito Media, L.P.
• AS209 CenturyLink Communications, LLC

Adjacent networks

• AS26801 Zito Media, L.P.
• AS209 CenturyLink Communications, LLC