First of all i would say i have seen many example here and googled but none found that matches all the condition i am looking for some match top 3 not below some inbetween.
To add to all of the above suggestions, here's my RegEx that will enforce NANP standards:
((?:\(?[2-9](?(?=1)1[02-9]|(?(?=0)0[1-9]|\d{2}))\)?\D{0,3})(?:\(?[2-9](?(?=1)1[02-9]|\d{2})\)?\D{0,3})\d{4})
This regular expression enforces NANP Standard rules such as N11 codes are used to provide three-digit dialing access to special services
, and thus excludes them using a conditional capture. It also accounts for up to 3 non-digit characters (\D{0,3}
) in between sections, because I've seen some funky data.
From the provided testing data, here's the Output:
3087774825
(281)388-0388
(281)388-0300
(979) 778-0978
(281)934-2479
(281)934-2447
(979)826-3273
(979)826-3255
(281)356-2530
(281)356-5264
(936)825-2081
(832)595-9500
(832)595-9501
281-342-2452
Note that there were two sample values omitted due to not being valid phone numbers by NANP Standards: Area Code begins with 1
1334714149
1334431660
The rule I am referring to can be found on the National NANPA's website's Area Codes page stating, The format of an area code is NXX, where N is any digit 2 through 9 and X is any digit 0 through 9.