Beginning December 12, 2009, Connecticut space code 203 protecting cities reminiscent of Bridgeport, New Haven or Stamford wil be overlayed by the brand new space code 475. The brand new code will cowl the very same area currently covered by area code 203.
On account of the introduction of this new space code, CT residents of those areas will probably be required to dial 10 digit numbers for native calls. There’s a permissive dialing interval permitting each 7 and 10 digit dialing beginning on Might 16, 2009 and ending on November 14, 2009. Beginning Nov. 14 all calls throughout the 203/475 overlay complicated needs to be dialed utilizing 10 digit dialing.
See NANPA announcement and map of the new overlay complex (PDF).
Go to area code 475 web page for an inventory of cities served, map and different information.