 |
 |
| city/area | all listed phonenumbers of landlines should be in the |
country
code
or national long distance direct dial code |
area
code
or NPA (Numbering Plan Area) |
exchange
(Central Office) number |
line
number
each Central Office can have up to 9999 lines numbered from 0000 to 9999 |
important
|
| Yakima | Phonebook
of Washington.c m |
+I
|
509
|
- - -
|
- - - -
|
|
| Yarmouth | Prince Edward Island/PE Canada |
+I
|
902
|
- - -
|
- - - -
|
|
| Yellowknife | Yukon Territory/YT Canada |
+I
|
867
|
- - -
|
- - - -
|
|
| Yonkers | Phonebook
of New York.cm |
+I
|
9I4
|
- - -
|
- - - -
|
|
| York | Phonebook
of Pennsylvania.cm |
+I
|
7I7
|
- - -
|
- - - -
|
|
|
Youngstown
|
Phonebook
of Ohio.cm |
+I
|
234
|
- - -
|
- - - -
|
|
| Youngstown | Phonebook
of Ohio.cm |
+I
|
330
|
- - -
|
- - - -
|
|
| Yuma | Phonebook
of Arizona.cm |
+I
|
520
|
- - -
|
- - - -
|
|
|
or
O
for Operator |
||||||
 |
the
US telephone system: orginally and before the divestiture of AT&T into 22 Baby Bells in I984 Us area-codes were rather simple,.. |
...from
200 - 900
and |
restricted
to the first I9 n°s
in a given series example 200 - 2I9 300 - 3I9 |
|
|
codes
out of this
dialing schemes are recent |
m