NPA RELIEF ACTIVITY
CENTRAL OFFICE CODE DETAIL

OLD NPA
602

NEW NPA
623

TEST #

PERMISSIVE

MANDATORY

(623) 566-6112

03/01/99

(landline)
09/01/99
 
(wireless)
11/01/99

    

214	245	247	334	337	362	374	386	388	393
412	427	434	435	465	466	476	486	487	492
516	518	535	536	546	561	566	572	580	581
582	583	584	587	643	691	707	742	754	772
773	780	815	825	842	845	846	847	848	849
853	856	869	872	873	875	876	877	878	879
907	915	925	930	931	932	933	934	935	936
937	939	972	974	975	977	979