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From: cmoore@BRL.ARPA (Carl Moore, VLD/VMB)
Newsgroups: comp.dcom.telecom
Subject: PEN (U.S. Postal Service)
Message-ID: <8711061639.aa06917@VMB.BRL.ARPA>
Date: Fri, 6-Nov-87 16:39:54 EST
Article-I.D.: VMB.8711061639.aa06917
Posted: Fri Nov  6 16:39:54 1987
Date-Received: Wed, 11-Nov-87 02:44:11 EST
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The ARPA Internet
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Approved: telecom@xx.lcs.mit.edu

In zipcode directory of Airport Mail Facilities, I see commercial
telephone numbers followed by other numbers using PEN where the
commercial area code would appear (as in the FTS).  What does PEN
stand for?