Linksys WRTP54G

Overview
WRTP54G serial numbers would seem to start with CJJ0.

A unit with a S/N of CJJ01F716421 has the following...
 * a Texas Instruments TNETV1060ZDW (TNETV1060) processor
 * a Spansion 8MB Flash (S29GL064M90TFIR4) and 16MB RAM (2x MIRA P2V64S40ETP-G6)
 * silkscreened text of "3763-14140201R" on the main board
 * HERMEI capacitors
 * a 00:18:39 OUI on the external MAC label and internal Mini PCI wireless module label
 * Country of Origin noted as China
 * All blue LEDs

This router is used with Vonage.

The default SSID is linksys.

Links of Interest
On the DD-WRT forums On the OpenWrt wiki Alternative Firmware and Hacking the Linksys WRTP54G-NA (in Spanish)
 * "3762-14141506" is silkscreened on the board.

On Wikipedia