This is a list of country calling codes defined by ITU-T recommendation E.164.
Country calling codes form a prefix code, hence they can be organized as a tree:
+0: --+1 242: BS
+1 246: BB
+1 264: AI
+1 268: AG
+1 284: VG
+1 649: TC
+1 664: MS
+1 670: MP
+1 671: GU
+1 684: AS
+1 758: LC
+1 767: DM
+1 784: VC
+1 787: PR
+1 809: DO
+1 829: DO
+1 868: TT
+1 869: KN
+1 876: JM
+1 939: PR
+210: --
+211: --
+212: MA, EH
+213: DZ
+214: --
+215: --
+216: TN
+217: --
+218: LY
+219: --
+220: GM
+221: SN
+222: MR
+223: ML
+224: GN
+225: CI
+226: BF
+227: NE
+228: TG
+229: BJ
+230: MU
+231: LR
+232: SL
+233: GH
+234: NG
+235: TD
+236: CF
+237: CM
+238: CV
+239: ST
+240: GQ
+241: GA
+242: CG
+243: CD
+244: AO
+245: GW
+246: IO
+247: AC
+248: SC
+249: SD
+250: RW
+251: ET
+252: SO, QS
+253: DJ
+254: KE
+255: TZ
+256: UG
+257: BI
+258: MZ
+259: --
+260: ZM
+261: MG
+262: RE, YT
+263: ZW
+264: NA
+265: MW
+266: LS
+267: BW
+268: SZ
+269: KM
+290: SH, TA
+291: ER
+292: --
+293: --
+294: --
+295: --
+296: --
+297: AW
+298: FO
+299: GL
+350: GI
+351: PT
+352: LU
+353: IE
+354: IS
+355: AL
+356: MT
+357: CY
+358: FI, AX
+359: BG
+370: LT
+371: LV
+372: EE
+373: MD
+374: AM, QN
+375: BY
+376: AD
+377: MC
+378: SM
+379: VA
+380: UA
+381: RS
+382: ME
+383: --
+384: --
+385: HR
+386: SI
+387: BA
+388: EU
+389: MK
+420: CZ
+421: SK
+422: --
+423: LI
+424: --
+425: --
+426: --
+427: --
+428: --
+429: --
+500: FK
+501: BZ
+502: GT
+503: SV
+504: HN
+505: NI
+506: CR
+507: PA
+508: PM
+509: HT
+590: GP
+591: BO
+592: GY
+593: EC
+594: GF
+595: PY
+596: MQ
+597: SR
+598: UY
+599: AN
+670: TL
+671: --
+672: NF, AQ
+673: BN
+674: NR
+675: PG
+676: TO
+677: SB
+678: VU
+679: FJ
+680: PW
+681: WF
+682: CK
+683: NU
+684: --
+685: WS
+686: KI
+687: NC
+688: TV
+689: PF