| Paese (o dipendenza) | Prefisso di chiamata | ISO a 3 lettere | ISO a 2 lettere | ISO numerico a 3 cifre |
|---|---|---|---|---|
| Russia | 7 | RUS | RU | 643 |
| Canada | 1 | CAN | CA | 124 |
| Cina | 86 | CHN | CN | 156 |
| Stati Uniti | 1 | USA | US | 840 |
| Brasile | 55 | BRA | BR | 076 |
| Australia | 61 | AUS | AU | 036 |
| India | 91 | IND | IN | 356 |
| Argentina | 54 | ARG | AR | 032 |
| Kazakistan | 7 | KAZ | KZ | 398 |
| Algeria | 213 | DZA | DZ | 012 |
| RD del Congo | 243 | COD | CD | 180 |
| Groenlandia | 299 | GRL | GL | 304 |
| Arabia Saudita | 966 | SAU | SA | 682 |
| Messico | 52 | MEX | MX | 484 |
| Indonesia | 62 | IDN | ID | 360 |
| Sudan | 249 | SDN | SD | 729 |
| Libia | 218 | LBY | LY | 434 |
| Iran | 98 | IRN | IR | 364 |
| Mongolia | 976 | MNG | MN | 496 |
| Perù | 51 | PER | PE | 604 |
| Ciad | 235 | TCD | TD | 148 |
| Niger | 227 | NER | NE | 562 |
| Angola | 244 | AGO | AO | 024 |
| Mali | 223 | MLI | ML | 466 |
| Sudafrica | 27 | ZAF | ZA | 710 |
| Colombia | 57 | COL | CO | 170 |
| Etiopia | 251 | ETH | ET | 231 |
| Bolivia | 591 | BOL | BO | 068 |
| Mauritania | 222 | MRT | MR | 478 |
| Egitto | 20 | EGY | EG | 818 |
| Tanzania | 255 | TZA | TZ | 834 |
| Nigeria | 234 | NGA | NG | 566 |
| Venezuela | 58 | VEN | VE | 862 |
| Pakistan | 92 | PAK | PK | 586 |
| Namibia | 264 | NAM | NA | 516 |
| Mozambico | 258 | MOZ | MZ | 508 |
| Turchia | 90 | TUR | TR | 792 |
| Cile | 56 | CHL | CL | 152 |
| Zambia | 260 | ZMB | ZM | 894 |
| Myanmar | 95 | MMR | MM | 104 |
| Afghanistan | 93 | AFG | AF | 004 |
| Somalia | 252 | SOM | SO | 706 |
| Repubblica Centrafricana | 236 | CAF | CF | 140 |
| Sudan del Sud | 211 | SSD | SS | 728 |
| Ucraina | 380 | UKR | UA | 804 |
| Madagascar | 261 | MDG | MG | 450 |
| Botswana | 267 | BWA | BW | 072 |
| Kenya | 254 | KEN | KE | 404 |
| Francia | 33 | FRA | FR | 250 |
| Yemen | 967 | YEM | YE | 887 |
| Thailandia | 66 | THA | TH | 764 |
| Spagna | 34 | ESP | ES | 724 |
| Turkmenistan | 993 | TKM | TM | 795 |
| Camerun | 237 | CMR | CM | 120 |
| Papua Nuova Guinea | 675 | PNG | PG | 598 |
| Svezia | 46 | SWE | SE | 752 |
| Uzbekistan | 998 | UZB | UZ | 860 |
| Marocco | 212 | MAR | MA | 504 |
| Iraq | 964 | IRQ | IQ | 368 |
| Paraguay | 595 | PRY | PY | 600 |
| Zimbabwe | 263 | ZWE | ZW | 716 |
| Giappone | 81 | JPN | JP | 392 |
| Germania | 49 | DEU | DE | 276 |
| Filippine | 63 | PHL | PH | 608 |
| Congo | 242 | COG | CG | 178 |
| Finlandia | 358 | FIN | FI | 246 |
| Vietnam | 84 | VNM | VN | 704 |
| Malaysia | 60 | MYS | MY | 458 |
| Norvegia | 47 | NOR | NO | 578 |
| Costa d'Avorio | 225 | CIV | CI | 384 |
| Polonia | 48 | POL | PL | 616 |
| Oman | 968 | OMN | OM | 512 |
| Italia | 39 | ITA | IT | 380 |
| Ecuador | 593 | ECU | EC | 218 |
| Burkina Faso | 226 | BFA | BF | 854 |
| Nuova Zelanda | 64 | NZL | NZ | 554 |
| Gabon | 241 | GAB | GA | 266 |
| Sahara Occidentale | 212 | ESH | EH | 732 |
| Guinea | 224 | GIN | GN | 324 |
| Regno Unito | 44 | GBR | GB | 826 |
| Uganda | 256 | UGA | UG | 800 |
| Ghana | 233 | GHA | GH | 288 |
| Romania | 40 | ROU | RO | 642 |
| Laos | 856 | LAO | LA | 418 |
| Guyana | 592 | GUY | GY | 328 |
| Bielorussia | 375 | BLR | BY | 112 |
| Kirghizistan | 996 | KGZ | KG | 417 |
| Senegal | 221 | SEN | SN | 686 |
| Siria | 963 | SYR | SY | 760 |
| Cambogia | 855 | KHM | KH | 116 |
| Uruguay | 598 | URY | UY | 858 |
| Suriname | 597 | SUR | SR | 740 |
| Tunisia | 216 | TUN | TN | 788 |
| Bangladesh | 880 | BGD | BD | 050 |
| Nepal | 977 | NPL | NP | 524 |
| Tagikistan | 992 | TJK | TJ | 762 |
| Grecia | 30 | GRC | GR | 300 |
| Nicaragua | 505 | NIC | NI | 558 |
| Corea del Nord | 850 | PRK | KP | 408 |
| Malawi | 265 | MWI | MW | 454 |
| Eritrea | 291 | ERI | ER | 232 |
| Benin | 229 | BEN | BJ | 204 |
| Honduras | 504 | HND | HN | 340 |
| Liberia | 231 | LBR | LR | 430 |
| Bulgaria | 359 | BGR | BG | 100 |
| Cuba | 53 | CUB | CU | 192 |
| Guatemala | 502 | GTM | GT | 320 |
| Islanda | 354 | ISL | IS | 352 |
| Corea del Sud | 82 | KOR | KR | 410 |
| Ungheria | 36 | HUN | HU | 348 |
| Portogallo | 351 | PRT | PT | 620 |
| Giordania | 962 | JOR | JO | 400 |
| Serbia | 381 | SRB | RS | 688 |
| Azerbaigian | 994 | AZE | AZ | 031 |
| Austria | 43 | AUT | AT | 040 |
| Emirati Arabi Uniti | 971 | ARE | AE | 784 |
| Repubblica Ceca (Cechia) | 420 | CZE | CZ | 203 |
| Panama | 507 | PAN | PA | 591 |
| Sierra Leone | 232 | SLE | SL | 694 |
| Irlanda | 353 | IRL | IE | 372 |
| Georgia | 995 | GEO | GE | 268 |
| Sri Lanka | 94 | LKA | LK | 144 |
| Lituania | 370 | LTU | LT | 440 |
| Lettonia | 371 | LVA | LV | 428 |
| Togo | 228 | TGO | TG | 768 |
| Croazia | 385 | HRV | HR | 191 |
| Bosnia ed Erzegovina | 387 | BIH | BA | 070 |
| Costa Rica | 506 | CRI | CR | 188 |
| Slovacchia | 421 | SVK | SK | 703 |
| Repubblica Dominicana | 1-809, 1-829, 1-849 | DOM | DO | 214 |
| Estonia | 372 | EST | EE | 233 |
| Danimarca | 45 | DNK | DK | 208 |
| Paesi Bassi | 31 | NLD | NL | 528 |
| Svizzera | 41 | CHE | CH | 756 |
| Bhutan | 975 | BTN | BT | 064 |
| Taiwan | 886 | TWN | TW | 158 |
| Guinea-Bissau | 245 | GNB | GW | 624 |
| Moldavia | 373 | MDA | MD | 498 |
| Belgio | 32 | BEL | BE | 056 |
| Lesotho | 266 | LSO | LS | 426 |
| Armenia | 374 | ARM | AM | 051 |
| Isole Salomone | 677 | SLB | SB | 090 |
| Albania | 355 | ALB | AL | 008 |
| Guinea Equatoriale | 240 | GNQ | GQ | 226 |
| Burundi | 257 | BDI | BI | 108 |
| Haiti | 509 | HTI | HT | 332 |
| Ruanda | 250 | RWA | RW | 646 |
| Macedonia del Nord | 389 | MKD | MK | 807 |
| Gibuti | 253 | DJI | DJ | 262 |
| Belize | 501 | BLZ | BZ | 084 |
| El Salvador | 503 | SLV | SV | 222 |
| Israele | 972 | ISR | IL | 376 |
| Slovenia | 386 | SVN | SI | 705 |
| Nuova Caledonia | 687 | NCL | NC | 540 |
| Figi | 679 | FJI | FJ | 242 |
| Kuwait | 965 | KWT | KW | 414 |
| eSwatini | 268 | SWZ | SZ | 748 |
| Timor-Leste | 670 | TLS | TL | 626 |
| Bahamas | 1-242 | BHS | BS | 044 |
| Montenegro | 382 | MNE | ME | 499 |
| Vanuatu | 678 | VUT | VU | 548 |
| Isole Falkland | 500 | FLK | FK | 238 |
| Qatar | 974 | QAT | QA | 634 |
| Giamaica | 1-876 | JAM | JM | 388 |
| Gambia | 220 | GMB | GM | 270 |
| Libano | 961 | LBN | LB | 422 |
| Cipro | 357 | CYP | CY | 196 |
| Porto Rico | 1-787, 1-939 | PRI | PR | 630 |
| Stato di Palestina | 970 | PSE | PS | 275 |
| Brunei | 673 | BRN | BN | 096 |
| Trinidad e Tobago | 1-868 | TTO | TT | 780 |
| Polinesia francese | 689 | PYF | PF | 258 |
| Cabo Verde | 238 | CPV | CV | 132 |
| Samoa | 685 | WSM | WS | 882 |
| Lussemburgo | 352 | LUX | LU | 442 |
| Riunione | 262 | REU | RE | 638 |
| Mauritius | 230 | MUS | MU | 480 |
| Comore | 269 | COM | KM | 174 |
| Isole Fær Øer | 298 | FRO | FO | 234 |
| Hong Kong | 852 | HKG | HK | 344 |
| São Tomé e Príncipe | 239 | STP | ST | 678 |
| Turks e Caicos | 1-649 | TCA | TC | 796 |
| Kiribati | 686 | KIR | KI | 296 |
| Bahrein | 973 | BHR | BH | 048 |
| Dominica | 1-767 | DMA | DM | 212 |
| Tonga | 676 | TON | TO | 776 |
| Singapore | 65 | SGP | SG | 702 |
| Micronesia | 691 | FSM | FM | 583 |
| Santa Lucia | 1-758 | LCA | LC | 662 |
| Isola di Man | 44-1624 | IMN | IM | 833 |
| Guam | 1-671 | GUM | GU | 316 |
| Andorra | 376 | AND | AD | 020 |
| Isole Marianne Settentrionali | 1-670 | MNP | MP | 580 |
| Palau | 680 | PLW | PW | 585 |
| Seychelles | 248 | SYC | SC | 690 |
| Curaçao | 599 | CUW | CW | 531 |
| Antigua e Barbuda | 1-268 | ATG | AG | 028 |
| Barbados | 1-246 | BRB | BB | 052 |
| Sant'Elena | 290 | SHN | SH | 654 |
| St. Vincent e Grenadine | 1-784 | VCT | VC | 670 |
| Mayotte | 262 | MYT | YT | 175 |
| Isole Vergini Americane | 1-340 | VIR | VI | 850 |
| Grenada | 1-473 | GRD | GD | 308 |
| Malta | 356 | MLT | MT | 470 |
| Maldive | 960 | MDV | MV | 462 |
| Isole Cayman | 1-345 | CYM | KY | 136 |
| Saint Kitts e Nevis | 1-869 | KNA | KN | 659 |
| Niue | 683 | NIU | NU | 570 |
| Saint-Pierre e Miquelon | 508 | SPM | PM | 666 |
| Isole Cook | 682 | COK | CK | 184 |
| Samoa Americane | 1-684 | ASM | AS | 016 |
| Isole Marshall | 692 | MHL | MH | 584 |
| Aruba | 297 | ABW | AW | 533 |
| Liechtenstein | 423 | LIE | LI | 438 |
| Isole Vergini Britanniche | 1-284 | VGB | VG | 092 |
| Wallis e Futuna | 681 | WLF | WF | 876 |
| Montserrat | 1-664 | MSR | MS | 500 |
| Anguilla | 1-264 | AIA | AI | 660 |
| San Marino | 378 | SMR | SM | 674 |
| Bermuda | 1-441 | BMU | BM | 060 |
| Saint-Martin | 590 | MAF | MF | 663 |
| Sint Maarten | 1-721 | SXM | SX | 534 |
| Macao | 853 | MAC | MO | 446 |
| Tuvalu | 688 | TUV | TV | 798 |
| Nauru | 674 | NRU | NR | 520 |
| Saint-Barthélemy | 590 | BLM | BL | 652 |
| Tokelau | 690 | TKL | TK | 772 |
| Gibilterra | 350 | GIB | GI | 292 |
| Monaco | 377 | MCO | MC | 492 |
| Santa Sede | 379 | VAT | VA | 336 |