CD CASTRO CONSULTANCY

Telecommunications Consultancy and related services

c/o MCI Phils., 17/F, Tower 2, The Enterprise Center 6766 Ayala Avenue Makati City, NCR - Fourth District 1200

Tel : 889-9110

Fax : 889-6955

EASTERN TELECOMMUNICATIONS PHILIPPINES, INC. (ETPI)

Information and Communications Technology

Telecoms Plaza, 316 Sen. Gil Puyat Avenue Makati City Makati Metro Manila

Tel : (02) 815-8921; 816-0001; 753-1358

Fax : (02) 815-8452;817-3383; 815-3470

EXPRESS TELECOMMUNICATIONS CO. INC.(EXTELCOM)

Information and Communications Technology

11th Floor, Octagon Center Building San Miguel Avenue, Ortigas Center Pasig City Pasig Metro Manila

Tel : (02) 633-41-61 / 634-75-38 / 917-88-01

Fax : (02) 634-7534 / 634-75-40

FILIPINAS ELECTRONICS AND TELECOMMUNICATIONS CORP. (FETELCOR)

Information and Communications Technology

4th Floor, Basic Petroleum Building 104 Carlos Palanca Jr. St. Legaspi Village, Makati City Makati Metro Manila

Tel : (02) 817-17-74 / 817-76-95

Fax : (02) 817-26-14

NOKIA TELECOMMUNICATIONS PHILS. INC.

Information and Communications Technology

Nokia Networks Country, 20th Floor, Philamlife Tower, 8767 Paseo de Roxas, 1226 Makati City, Philippines Makati Metro Manila

Tel : (632) 884-5182 / 753-1582

Fax : (632) 754-1550

DIGITAL TELECOMMUNICATIONS PHILS., INC.

TELECOMMUNICATIONS

Digitel Building110 E. Rodriguez Jr. Ave., Bagumbayan, Quezon City 1110

Tel : 397-8888

Fax : 635-6142

Bell Telecommunications Phils. Inc.

Information and Communications Technology

Pacific Star Building Sen. Gil Puyat Avenue Makati City Metro Manila

Tel : 02-68002355

Fax : 02-6001-0800 or 6800-0801

PLDT

Telecommunications Service Provider

2nd Avenue, Corner 31st Street Fort Bonifacio TAGUIG METRO MANILA

Tel : 09954835854

Mega Cellular Network Inc.

Telecommunications Service Provider

1953 Adriatico Street Barangay 699 MANILA METRO MANILA

Tel : 522-1633

PLDT

,telecommunications Service Provider

F.B Harrison Street Barangay 76 PASAY METRO MANILA

Tel : 833-8078