КодСтранаРегионГородОператорДобавлено
+1 503 СШАOR Oregon (see 541, 971)2013-08-22
+1 503 СШАPortland, OR2013-10-18
+1 503 207СШАMultnomahPortland, ORMcimetro Access Transmission Services LLC, Landline2013-10-18