What regular expression will match valid international phone numbers

Question

I need to determine whether a phone number is valid before attempting to dial it  The phone call can go anywhere in the world   What regular expression will match valid international phone numbers

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This is a further optimisation        9 976  d 8 987530  d 6 987  d 5 90  d 42 d 3 875  d  2 98654321  d 9 8543210  8 6421  6 6543210  5 87654321   4 987654310  3 9643210  2 70  7 1   W  d W  d W  d W  d W  d W  d W  d W  d W   d 1 2       i  allows for valid international prefixes  ii  followed by 9 or 10 digits  with any type or placing of delimeters  except between the last two digits   This will match       1-234-567-8901      61-234-567-89-01      46-234 5678901      1  234  56 89 901      1  234  56-89 901      46 234 567 8901      1 234 567 8901

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Here is a regex for the following most common phone number scenarios  Although this is tailored from a US perspective for area codes it works for international scenarios    The actual number should be 10 digits only    For US numbers area code may be surrounded with parentheses       The country code can be 1 to 3 digits long  Optionally may be preceded by a   sign    There may be dashes  spaces  dots or no spaces between country code  area code and the rest of the number    A valid phone number cannot be all zeros         b 0  1  b      d 1 3    -        d 3        -    d 3  3 d 4      Explanation           - start of expression           b 0  1  b  -     Negative Look ahead   b - word boundary around a  0  character   1 backtrack to previous capturing group  zero   Basically don t match all zeros             d 1 3    -     -       plus sign before country code is optional  d 1 3  - country code can be 1 to 3 digits long      -    - spaces dots and dashes are optional  The last question mark is to make country code optional            d 3     -       is to make parentheses optional   d 3  - match 3 digit area code            -    - optional space  dash or dot       - end of expression   More examples and explanation - https   regex101 com r hTH8Ct 2

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This works for me  without 00  001  0011 etc prefix though          d 3    0-9  -  8

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9 976  d 8 987530  d 6 987  d 5 90  d 42 d 3 875  d  2 98654321  d 9 8543210  8 6421  6 6543210  5 87654321   4 987654310  3 9643210  2 70  7 1  d 1 14     Is the correct format for matching a generic international phone number  I replaced the US land line centric international access code 011 with the standard international access code identifier of      making it mandatory  I also changed the minimum for the national number to at least one digit   Note that if you enter numbers in this format into your mobile phone address book  you may successfully call any number in your address book no matter where you travel  For land lines  replace the plus with the international access code for the country you are dialing from   Note that this DOES NOT take into account national number plan rules - specifically  it allows zeros and ones in locations that national number plans may not allow and also allows number lengths greater than the national number plan for some countries  e g   the US

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Here s an  optimized  version of your regex    011 9 976  d 8 987530  d 6 987  d 5 90  d 42 d 3 875  d  2 98654321  d 9 8543210  8 6421  6 6543210  5 87654321   4 987654310  3 9643210  2 70  7 1  d 0 14     You can replace the  ds with  0-9  if your regex syntax doesn t support  d

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I use this one      0-9 s -  7       s      x    ext    extension  s   d         Advantages  recognizes   or 011 beginnings  lets it be as long as needed  and handles many extension conventions     x ext extension

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For iOS SWIFT I found this helpful   let phoneRegEx             00            0-9  3 14

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It works pretty well with 00xx and  xx      00     9 976  d 8 987530  d 6 987  d 5 90  d 42 d 3 875  d 2 98654321  d 9 8543210  8 6421  6 6543210  5 87654321  4 987654310  3 9643210  2 70  7 1  d 1 14

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There s obviously a multitude of ways to do this  as evidenced by all of the different answers given thus far  but I ll throw my  0 02 worth in here and provide the regex below  which is a bit more terse than nearly all of the above  but more thorough than most as well  It also has the nice side-effect of leaving the country code in  1 and the local number in  2          d 5 15    1 2 078  3 0-469  4 013-9  5 1-8  6 0-6  7 8 1-469  9 0-58   2-9      d

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I have used this below        00  0-9  1 3  0-9  4 14    x        The format  CCC NNNNNNNNNNxEEEE or 00CCC NNNNNNNNNNxEEEE  Phone number must start with     or  00  for an international call  where C is the 1   3 digit country code    N is up to 14 digits    and E is the  optional  extension    The leading plus sign and the dot following the country code are required  The literal    x    character is required only if an extension is provided

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Try this  I do not know if there is any phone number longer than 12     00     1  d 12

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Modified  Eric s regular expression - added a list of all country codes  got them from xxxdepy   Github  I hope you will find it helpful        00  297 93 244 1264 358 355 376 971 54 374 1684 1268 61 43 994 257 32 229 226 880 359 973 1242 387 590 375 501 1441 591 55 1246 673 975 267 236 1 61 41 56 86 225 237 243 242 682 57 269 238 506 53 5999 61 1345 357 420 49 253 1767 45 1809 1829 1849 213 593 20 291 212 34 372 251 358 679 500 33 298 691 241 44 995 44 233 350 224 590 220 245 240 30 1473 299 502 594 1671 592 852 504 385 509 36 62 44 91 246 353 98 964 354 972 39 1876 44 962 81 76 77 254 996 855 686 1869 82 383 965 856 961 231 218 1758 423 94 266 370 352 371 853 590 212 377 373 261 960 52 692 389 223 356 95 382 976 1670 258 222 1664 596 230 265 60 262 264 687 227 672 234 505 683 31 47 977 674 64 968 92 507 64 51 63 680 675 48 1787 1939 850 351 595 970 689 974 262 40 7 250 966 249 221 65 500 4779 677 232 503 378 252 508 381 211 239 597 421 386 46 268 1721 248 963 1649 235 228 66 992 690 993 670 676 1868 216 90 688 886 255 256 380 598 1 998 3906698 379 1784 58 1284 1340 84 678 681 685 967 27 260 263  9 976  d 8 987530  d 6 987  d 5 90  d 42 d 3 875  d 2 98654321  d 9 8543210  8 6421  6 6543210  5 87654321  4 987654310  3 9643210  2 70  7 1  d 4 20

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I made the regexp for european phone numbers  and it is specific against dial prefix vs length of number  const PhoneEuropeRegExp        gt           eu phones map https   en wikipedia org wiki Telephone numbers in Europe     const phonesMap              quot 43 quot    4  13            quot 32 quot    8  10            quot 359 quot    7  9            quot 385 quot    8  9            quot 357 quot   8           quot 420 quot   9           quot 45 quot   8           quot 372 quot   7           quot 358 quot    5  12            quot 33 quot   9           quot 350 quot   8           quot 49 quot    3  12            quot 30 quot   10           quot 36 quot    8  9            quot 354 quot    7  9            quot 353 quot    7  9            quot 39 quot    6  12            quot 371 quot   8           quot 423 quot    7  12            quot 370 quot   8           quot 352 quot   8           quot 356 quot   8           quot 31 quot   9           quot 47 quot    4  12            quot 48 quot   9           quot 351 quot   9           quot 40 quot   9           quot 421 quot   9           quot 386 quot   8           quot 34 quot   9           quot 46 quot    6  9              const regExpBuilt   Object keys phonesMap           reduce function prev  key                const val   phonesMap key               if  Array isArray val                     prev push  quot      quot    key     0-9     val 0     val 1                       else                   prev push  quot      quot    key     0-9     val                                  return prev                          join  quot   quot        return new RegExp      regExpBuilt           alert PhoneEuropeRegExp   test  quot  420123456789 quot

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The international numbering plan is based on the ITU E 164 numbering plan  I guess that s the starting point to your regular expression   I ll update this if I get around to create a regular expression based on the ITU E 164 numbering

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This will work for international numbers   C             d 1 3  -        d    -     d 1 5        d 2 6       -      d 3 4   -      d 4     x  ext  d 1 5   0 1      JS          d 1 3  -        d    -     d 1 5        d 2 6       -      d 3 4   -      d 4     x  ext  d 1 5   0 1

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Try the following API for phone number validation  Also this will return the Country  Area and Provider  demo https   libphonenumber appspot com   git  https   github com googlei18n libphonenumber releases tag v8 9 0

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Try this  it works for me     00     1-9  1   0-9   s    9 16

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public static boolean validateInternationalPhoneNumberFormat String phone        StringBuilder sb   new StringBuilder 200           Country code     sb append        1    d  1 3               Area code  with or without parentheses     sb append      s           1    d  2 3       1    s        d  2 3    s                 Phone number separator can be  -       or             Minimum of 5 digits  for fixed line phones in Solomon Islands      sb append    d   -     s    d   -     s    d   -     s    d   -     s    d   -     s              4 more optional digits     sb append    d    -     s    d    -     s    d    -     s    d           return Pattern compile sb toString    matcher phone  find

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This Regex Expression works for India  Canada  Europe  New Zealand  Australia  United States phone numbers  along with their country codes           0-9   1 2   -          0-9   2 3   -    1 2   0-9  4 10      0-9  10

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Even though this is not really using RegExp to get the job done - or maybe because of that - this looks like a nice solution to me  https   intl-tel-input com node modules intl-tel-input examples gen is-valid-number html

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You can use the library libphonenumber from Google   PhoneNumberUtil phoneNumberUtil   PhoneNumberUtil getInstance    String decodedNumber   null  PhoneNumber number      try           number   phoneNumberUtil parse encodedHeader  null           decodedNumber   phoneNumberUtil format number  PhoneNumberFormat E164         catch  NumberParseException e            e printStackTrace

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All country codes are defined by the ITU  The following regex is based on ITU-T E 164 and Annex to ITU Operational Bulletin No  930     15 IV 2009  It contains all current country codes and codes reserved for future use  While it could be shortened a bit  I decided to include each code independently   This is for calls originating from the USA  For other countries  replace the international access code  the 011 at the beginning of the regex  with whatever is appropriate for that country s dialing plan   Also  note that ITU E 164 defines the maximum length of a full international telephone number to 15 digits  This means a three digit country code results in up to 12 additional digits  and a 1 digit country code could contain up to 14 additional digits  Hence the   0-9  0 14     a the end of the regex   Most importantly  this regex does not mean the number is valid - each country defines its own internal numbering plan  This only ensures that the country code is valid       011 999 998 997 996 995 994 993 992 991    990 979 978 977 976 975 974 973 972 971 970    969 968 967 966 965 964 963 962 961 960 899    898 897 896 895 894 893 892 891 890 889 888    887 886 885 884 883 882 881 880 879 878 877    876 875 874 873 872 871 870 859 858 857 856    855 854 853 852 851 850 839 838 837 836 835    834 833 832 831 830 809 808 807 806 805 804    803 802 801 800 699 698 697 696 695 694 693    692 691 690 689 688 687 686 685 684 683 682    681 680 679 678 677 676 675 674 673 672 671    670 599 598 597 596 595 594 593 592 591 590    509 508 507 506 505 504 503 502 501 500 429    428 427 426 425 424 423 422 421 420 389 388    387 386 385 384 383 382 381 380 379 378 377    376 375 374 373 372 371 370 359 358 357 356    355 354 353 352 351 350 299 298 297 296 295    294 293 292 291 290 289 288 287 286 285 284    283 282 281 280 269 268 267 266 265 264 263    262 261 260 259 258 257 256 255 254 253 252    251 250 249 248 247 246 245 244 243 242 241    240 239 238 237 236 235 234 233 232 231 230    229 228 227 226 225 224 223 222 221 220 219    218 217 216 215 214 213 212 211 210 98 95 94    93 92 91 90 86 84 82 81 66 65 64 63 62 61 60    58 57 56 55 54 53 52 51 49 48 47 46 45 44 43    41 40 39 36 34 33 32 31 30 27 20 7 1  0-9  0    14

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A simple version for european numbers  that matches numbers like 0034617393211 but also long ones as 004401484172842    0 2  0-9  11     Hope it helps

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No criticism regarding those great answers I just want to present the simple solution I use for our admin content creators        00  1-9  0-9  -        7      Force start with a plus or two zeros and use at least a little bit of numbers  white space  braces  minus and point is optional and no other characters  You can safely remove all non-numbers and use this in a tel  input  Numbers will have a common form of representation and I do not have to worry about being to restrictive

[regex] What regular expression will match valid international phone numbers?

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