🚀 go-pugleaf

New England Telephone in NPA617 uses 1+ according to the "old" rule,
where it means "any toll call".  Thus, to call my office from Boston,
you might dial 1-858-3204.  This is a relic but it serves two useful
purposes in today's network.  First, many step by step offices don't
have the smarts to route calls on prefix beyond the local area, so
dialing 1 puts the call into a toll trunk right away.  There are lots
of steppers left in the area, outside Metro Boston (whose new area code
won't have any steppers in it.)

Second, NET did not use "code protection" for exchanges that are local
across area code boundaries.  Thus, Salem, NH is 603-893 and a local
7-digit call from Lawrence, MA.  Waltham, MA is 617-893 and a toll call.
If you dial 1893 from Lawrence, you get Waltham; if you dial 893, you
get Salem.

The "blue book" rule would have you dial 1603893 to get Salem, even though
it's local, and 893 to get Waltham, even though it's toll.  Some day they
may convert, but it will no doubt result in many misrouted calls for a
while.  (There are several other prefices in similar situations.)