Found a router on our network this afternoon:
CAN50C>sh ver
Cisco Internetwork Operating System Software
IOS (tm) C2600 Software (C2600-IS-M), Version 12.2(13), RELEASE SOFTWARE (fc1)
Copyright (c) 1986-2002 by cisco Systems, Inc.
Compiled Tue 19-Nov-02 23:38 by pwade
Image text-base: 0x8000808C, data-base: 0x810FA00C
ROM: System Bootstrap, Version 12.2(7r) [cmong 7r], RELEASE SOFTWARE (fc1)
CAN50C uptime is 7 years, 8 weeks, 3 days, 8 hours, 37 minutes
System returned to ROM by tacacs+
System restarted at 01:34:33 EDT Thu May 15 2003
System image file is "flash:c2600-is-mz.122-13"
Check out that for uptime!