[comp.dcom.telecom] prefix duplications near Washington, DC

cmoore@brl.mil (VLD/VMB) (04/17/89)

I came across a few new prefixes in Va. just beyond Washington calling
area; these are in 703, and I will list them and show the duplications
between them and the Washington calling area:
330 Manassas (301-330 Gaithersburg)
878 Dale City (301-878 Fort Ritchie, with DC and Baltimore area
    service?)
497 Occoquan (301-497 Laurel)--same already existed regarding 490

Also, I know of (703 area): 882 Waterford, 822 Lovettsville, 668
Hillsboro, 554 Bluemont (sp?), all in or near western Loudoun
County, and duplicating prefixes in DC.  When you proceed into
703 area beyond DC suburbs, you don't hit a big metropolitan
area that you encounter in Maryland (Baltimore); in the latter
case, there are many prefix duplications between Balt. area and
DC/Va. suburbs.  How tight is 703 area nowadays, anyway?  (It was
split in 1973 to form 804 area.)