Oak Brook IL Area Code

State:
Area:
Postfix:
IL
Active:
Prefix Usage Carrier Introduced
(630) 218- Landline Ameritech Illinois Introduced 10/15/1996
(630) 288- Landline Teleport Communications America Introduced 04/15/1996
(630) 328- Landline Teleport Communications America Introduced 04/15/1996
(630) 368- Landline Ameritech Illinois Introduced 10/15/1996
(630) 410- Landline Teleport Communications America Introduced 02/27/1999
(630) 422- Landline Teleport Communications America Introduced 02/27/1999
(630) 445- Landline AT&T Local Introduced 08/14/1998
(630) 456- Landline AT&T Local Introduced 08/14/1998
(630) 472- Landline Ameritech Illinois Introduced 10/15/1996
(630) 480- Landline Teleport Communications America Introduced 05/18/1998
(630) 481- Landline Teleport Communications America Introduced 05/18/1998
(630) 509- Landline AT&T Local Introduced 08/14/1998
(630) 520- Landline Teleport Communications America Introduced 05/18/1998
(630) 568- Landline AT&T Local Introduced 02/27/1999
(630) 571- Landline Ameritech Illinois Introduced 10/15/1996
(630) 572- Landline Ameritech Illinois Introduced 10/15/1996
(630) 573- Landline Ameritech Illinois Introduced 10/15/1996
(630) 574- Landline Ameritech Illinois Introduced 10/15/1996
(630) 575- Landline Ameritech Illinois Introduced 10/15/1996
(630) 581- Landline AT&T Local Introduced 02/27/1999
(630) 586- Landline Ameritech Illinois Introduced 10/15/1996
(630) 623- Landline Ameritech Illinois Introduced 10/15/1996
(630) 634- Landline AT&T Local Introduced 08/14/1998
(630) 645- Landline Ameritech Illinois Introduced 10/15/1996
(630) 684- Landline Ameritech Illinois Introduced 10/15/1996
(630) 722- Wireless Ameritech Illinois Introduced 10/15/1996
(630) 756- Landline Global Crossing Local Services-il Introduced 02/27/1999
(630) 891- Landline Ovation Communications Of Illinois Introduced 11/20/1998
(630) 928- Landline Ameritech Illinois Introduced 01/25/1998
(630) 931- Landline Teleport Communications America Introduced 02/27/1999
(630) 954- Landline Ameritech Illinois Introduced 10/15/1996
(630) 990- Landline Ameritech Illinois Introduced 10/15/1996