ISP Information:
Synonym for T3.
ISP Glossary:
Digital Signal level 3 - Carl Moore wrote 610 area, part of old 215 in southeastern Pennsylvania, includes the Delaware-Pennsylvania border. Recently, I made a call from my home (via AT&T) to a phone on 610-388, which is along the Delaware border (is local to Wilmington, Del.) and reaches up to a stretch of U.S. 1. AT&T bill which includes that call has arrived, and it gives the place name as Chadds Ford (do not recall seeing Chadds Ford in that context before), but nanpa.com (and the old phone books for that area) give 388 (which is a holdover from the 215 area) as Mendenhall.Chadds Ford is in that area.My phone books says "Mendenhall".Verizon has been consolidating some small suburban exchanges. It'spossible this was merged together. In the suburbs, an exchangeusually serves several towns, and town municipal and postal boundariesdo not match. It is quite often that someone's phone exchange,mailing town, and muncipality are all different. For instance, youcould be in the Jenkintown phone exchange (now TUrner, ESsex, andMElrose), but be in the Elkins Park post office and CheltenhamTownship, but be in a place commonly called Melrose Park.
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