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Notice the information when a server is unavailable or a feature is not existing.
One or more stars (*) indicate that the license has been in use for a long time.
The hours a license has been in use shows.
Aggregated usage aggregate the usage across multiple license servers.

JTB FlexReport sample network license usage report

From www.jtbworld.com

Time stamp: 2007-04-28 09:25

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License server status: 234@qwerty lmgrd is not running: Cannot connect to license server (-15,570:10035 "WinSock: Operation would block")

License server status: 27000@server1

AutoCAD MEP 2008: 1 license 1 in use.

user1@c1539

Checked out license at 2007-04-28 06:33

Hours used: 2:52

AutoCAD 2008: 21 licenses 16 in use.

user6@c1547	Checked out license at 2007-04-26 21:24	Hours used: 36:01	*	(Borrowed until 2007-10-27 06:25)
user8@c1191	Checked out license at 2007-04-28 08:49	Hours used: 0:36
user11@c1541	Checked out license at 2007-04-28 08:17	Hours used: 1:08
user12@c2009	Checked out license at 2007-04-26 21:24	Hours used: 36:01	*	(Borrowed until 2007-05-24 21:28)
user2@c1520	Checked out license at 2007-04-28 08:19	Hours used: 1:06
user17@c1169	Checked out license at 2007-04-28 07:59	Hours used: 1:26
user14@c1186	Checked out license at 2007-04-28 06:50	Hours used: 2:35
user22@c2354	Checked out license at 2007-04-26 21:24	Hours used: 36:01	*	(Borrowed until 2007-10-04 12:44)
user7@c2252	Checked out license at 2007-04-28 07:43	Hours used: 1:42
user31@c1561	Checked out license at 2007-04-28 07:07	Hours used: 2:18
user3@C1550	Checked out license at 2007-04-28 09:03	Hours used: 0:22
user3@c1604	Checked out license at 2007-04-26 21:24	Hours used: 36:01	*	(Borrowed until 2007-09-25 07:20)
user33@c1600	Checked out license at 2007-04-28 08:29	Hours used: 0:56
user41@c1141	Checked out license at 2007-04-28 08:48	Hours used: 0:37
user4@c1179	Checked out license at 2007-04-28 08:07	Hours used: 1:18
user37@c4013	Checked out license at 2007-04-28 07:52	Hours used: 1:33

AutoCAD Architecture 2008: 7 licenses 4 in use.

user9@c1586	Checked out license at 2007-04-28 07:14	Hours used: 2:11
user27@c3060	Checked out license at 2007-04-28 08:37	Hours used: 0:48
user29@c2131	Checked out license at 2007-04-28 08:33	Hours used: 0:52
user30@C1529	Checked out license at 2007-04-28 07:00	Hours used: 2:25

SAMreport_lite: Error: Cannot get users of SAMreport_lite: No such feature exists (-5,222)

License server status: 27000@server2

AutoCAD 2008: 15 licenses 2 in use.

user43@c4547	Checked out license at 2007-04-26 09:24	Hours used: 48:01	**
user48@c4191	Checked out license at 2007-04-23 06:08	Hours used: 123:17	*****

AutoCAD Architecture 2008: 3 licenses 2 in use.

user41@c4586	Checked out license at 2007-04-25 16:18	Hours used: 65:07	**
user42@c4060	Checked out license at 2007-04-28 07:37	Hours used: 1:48

Aggregated usage

AutoCAD 2008	36 licenses	18 in use
AutoCAD MEP 2008	1 license	1 in use
AutoCAD Architecture 2008	10 licenses	6 in use