... ... At&t Centrex

AT&T Centrex is a central office based telecommunications system. AT&T Centrex typically provides an individual direct dial number per user and does not require on-site common control equipment such as a key system or PBX.

Get all 49 companies using At&t Centrex
IBM

Software - General

Verizon

Information Services

Morgan Stanley

Financial Services

Frontier Communications

Telecommunications - General

Fidelity Investments

Financial Services

Cisco

Network Security Hardware & Software

Wells Fargo

Financial Services

Siemens

Electronics & Electronics Manufacturing

Michigan State University

Higher Education

FIS

Software - General

Amtrak

Transportation - General

Yale New Haven Hospital

Hospitals & Healthcare

CNA Insurance

Insurance - General

Xerox

Commercial Printing

Alcoa

Metals & Mining - General

City of Los Angeles

Government - General

Granite Telecommunications

Telecommunications - General

Avaya

Telecommunications - General

Cincinnati Bell

Telecommunications - General