Series Vendor
000 IBM
010 Compaq
030 The American College
050 Novell
070/075 Microsoft
073/077 Microsoft sales
076 Microsoft Certified Trainer
090 SCO
0B0 BEA Systems
0C0 Cisco Cable Testing 
0P0 Pivotal
0V0 Vignette
110 APTC Administration Certification
190 Lotus
1A0 Baan
1D0 CIW
1G0 Silicon Graphics, Inc.
1H0 HP Star Program
1K0 picture Tel
1L0 Intel
1M0 Lucent
1R0 Hewlett-Packard Support
1S0 Xylan Corporation
1T0 McAFee Associates
1V0 CPDT
1Y0 Citrix
1Z0 Oracle Corporation
220 CTIAA+
225 CDIA
270 Computer Associates
2B0 Cabletron
2M0 Accpac Program
310 Sun Microsystems Education
330 Digital SBG
350 Cisco Internet work Experts
3H0 HP Certified Program
310 ACI Financial Markets Associates
3X0 LINUX (Sair, Linux & Gnu)
400 CNX
480 Great plains Software
490 Hewlett Packard WCSO
4A0 Alcatel
4H0 Hyperion
630 NAPM
640 Cisco Training Partner
780 Centura
880 3Com
920 Nortel Networks
980 Network Professional Association
9A0 Adobe
9E0 Cisco Channel Certification
9K0 Newbridge Networks
9S0 CTT
9U0 Hummingbird Communications
9V0 Navision Software
9W0 British Telecom Europe
A00 SAS Institute
DD0 Damgaord
DX0 Nortel Networks
HD0 Help Desk Institute
1K0 CT1Ai - Net+
LB0 Lucent
LP0 Lucent
N10 CTIA Network +
NR0 NCR
PR0 PMI
RN0 BMC
SK0 CompTiA Server +
TB0 Tibco