Mark,
Great to have you back!
And the AT&T 4ESS in the building (NWORLAMA04T, 060-T) is working, but
> quite overwhelmed with call volume. You will frequently get "All ccts
> busy" or "due to the hurricane in the area you are calling"
> recordings, with trailers of "zero-six-zero, tee" (060-T being the
> Network Switch Number of the New Orleans 4ESS).
Off on a tangent somewhat, but is there any sort of numbering system applied to these modern ID numbers or is it more or less random allocation?
I'm familiar with the old-style IDs such as "914-1" for White Plains etc., but I've never been able to figure out how the current system is supposed to work.
For example, dialing into the NANP from the U.K. using an unallocated prefix within a valid area code often results in a "Your call cannot be completed as dialed" recording with an ID of "two" followed by two letters, e.g. 2BM. Are these class 2 tandem offices? Does the network even still use the same class designations as in the past?
-Paul