Re: Portability Issues (was: cell phones & do not call) [telecom]

In a message dated 3/1/2008 6:29:21 AM Central Standard Time, snipped-for-privacy@gonetoearth.com writes in reply to postings by several people about number portatbility:

> The key issue is that of "rate center". In most >> cases, the new number has to be "homed" in the same >> rate center as the original one. >snip >> In reality it gets even more confusing. Many area >> codes have multiple rate centers in them, even >> though all calls in that area might be >> considered "local". For example, NYC has, umm, >> something like 15 of them, so a phone number that's >> "homed" in South Brooklyn, for example, can NOT be >> transferred to an upper Manhattan location. > > And just to clarify fo those who don't know, or > might be under typical misconceptions... > > "Rate Center" is not the same as "Wire Center". > > A Rate Center is a "legal" item, something defined > by tariff indicating a region where everything > (usually) has the same BILLING or RATING criteria. > It is NOT (necessarily) the same thing as a "switch > coverage" area, i.e., the region covered by a > central office *SWITCH* aka "Wire Center", these > latter terms being more "technical" or "network", > rather than "legal" or "regulatory" (billing and > rating).

An interesting case is the rate center of Britton, Oklahoma. The tariff location of this rate center is the one-time location of a step CDO in the back of a long-gone barber shop in what was once the independent town of Britton. That municipality was dissolved and incorporated into the limits of Oklahoma City sometime around 1950.

The boundaries of the rate center included, and still include, a considerable portion of Oklahoma City as far south as NW 47th Street (the Britton CDO is at about NW 92nd Street) and extend far to the north, east and west, including not only the original town of Britton, the upscale residential city of Nichols Hills, another residential city by the name of The Village (in which I live) and the southern part of Edmond, Oklahoma, a continually growing suburb noted for its hospitality of many PGA golfers, among other things. It includes the 842 wire center building to the south, the 478 wire center to the northeast toward Edmond, and the 751 wire center to the north, which includes a major shopping mall in Oklahoma City. All three of those have multiple central office codes. (The 478 office also hosts the offices and printing plant of The Daily Oklahoman, the largest newspaper by circulation in Oklahoma.) (The original Britton CDO was TRinity-8, and I believe it passed out of existence before the adoption of All Number Calling.)

If your bill shows a call to or from Britton, Oklahoma, which no longer exists, it may be in any of those places. Those wire centers (central offices) are each several miles from one another.

Incidentally, a central office (wire center) can serve customers in more than one rate center, if that's what the engineering economics lead to.

Wes Leatherock snipped-for-privacy@yahoo.com snipped-for-privacy@aol.com

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