MICRO-BANK

Electrical and Scientific Apparatus

Owner

TOLLGRADE COMMUNICATIONS, INC.

—
NETFLARE

Electrical and Scientific Apparatus

Owner

TOLLGRADE COMMUNICATIONS, INC.

Oct 17, 2006
EDGE

Electrical and Scientific Apparatus

Owner

TOLLGRADE COMMUNICATIONS, INC.

Nov 30, 2004
HYFI

Electrical and Scientific Apparatus

Owner

TOLLGRADE COMMUNICATIONS, INC.

—
ICE

Electrical and Scientific Apparatus

Owner

TOLLGRADE COMMUNICATIONS, INC.

May 26, 2009
4TEL

Electrical and Scientific Apparatus

Owner

TOLLGRADE COMMUNICATIONS, INC.

Jan 17, 2006
CELERITY

Electrical and Scientific Apparatus

Owner

TOLLGRADE COMMUNICATIONS, INC.

Aug 19, 2003
AMULET

Electrical and Scientific Apparatus

Owner

TOLLGRADE COMMUNICATIONS, INC.

—
TOLLGRADE

Electrical and Scientific Apparatus

Owner

TOLLGRADE COMMUNICATIONS, INC.

Jul 24, 2001
LIGHTHOUSE

Electrical and Scientific Apparatus

Owner

TOLLGRADE COMMUNICATIONS, INC.

Apr 17, 2001
TOLLGRADE

Education and Entertainment and 2 other

Owner

TOLLGRADE COMMUNICATIONS, INC.

Jul 24, 2001
TELACCORD

Electrical and Scientific Apparatus

Owner

TOLLGRADE COMMUNICATIONS, INC.

Aug 15, 2000
DIGITEST

Electrical and Scientific Apparatus

Owner

TOLLGRADE COMMUNICATIONS, INC.

Nov 30, 1999
LIGHTHOUSE

Electrical and Scientific Apparatus

Owner

TOLLGRADE COMMUNICATIONS, INC.

Dec 7, 1999
MICRO-BANK

Electrical and Scientific Apparatus

Owner

TOLLGRADE COMMUNICATIONS, INC.

Apr 30, 1996
CHEETAH

Electrical and Scientific Apparatus

Owner

TOLLGRADE COMMUNICATIONS, INC.

Feb 6, 1996
TOLLGRADE

Electrical and Scientific Apparatus

Owner

TOLLGRADE COMMUNICATIONS, INC.

Sep 12, 1995
MCU

Electrical and Scientific Apparatus

Owner

TOLLGRADE COMMUNICATIONS, INC.

Dec 5, 1995
TEAM TOLLGRADE

Education and Entertainment and 2 other

Owner

TOLLGRADE COMMUNICATIONS, INC.

—
TEAM TOLLGRADE

Education and Entertainment and 2 other

Owner

TOLLGRADE COMMUNICATIONS, INC.

—
TOLLGRADE

Electrical and Scientific Apparatus

Owner

TOLLGRADE COMMUNICATIONS, INC.

Sep 19, 1995
MITS

Electrical and Scientific Apparatus

Owner

TOLLGRADE COMMUNICATIONS, INC.

Jun 13, 1989
4-TEL

Electrical and Scientific Apparatus

Owner

TOLLGRADE COMMUNICATIONS, INC.

Oct 12, 1982