Goto Section: 52.19 | 52.21 | Table of Contents
Revised as of October 1, 2009
Goto Year:2008 |
§ 52.20 Thousands-block number pooling.
(a) Definition. Thousands-block number pooling is a process by which
the 10,000 numbers in a central office code (NXX) are separated into
ten sequential blocks of 1,000 numbers each (thousands-blocks), and
allocated separately within a rate center.
(b) General requirements. Pursuant to the Commission's adoption of
thousands-block number pooling as a mandatory nationwide numbering
resource optimization strategy, all carriers, except those exempted by
the Commission, must participate in thousands-block number pooling
where it is implemented and in accordance with the national
thousands-block number pooling framework and implementation schedule
established by the Commission.
(c) Donation of thousands-blocks. (1) All service providers required to
participate in thousands-block number pooling shall donate
thousands-blocks with ten percent or less contamination to the
thousands-block number pool for the rate center within which the
numbering resources are assigned.
(2) All service providers required to participate in thousands-block
number pooling shall be allowed to retain at least one thousands-block
per rate center, even if the thousands-block is ten percent or less
contaminated, as an initial block or footprint block.
(d) Thousands-Block Pooling Administrator. (1) The Pooling
Administrator shall be a non-governmental entity that is impartial and
not aligned with any particular telecommunication industry segment, and
shall comply with the same neutrality requirements that the NANPA is
subject to under this part.
(2) The Pooling Administrator shall maintain no more than a six-month
inventory of telephone numbers in each thousands-block number pool.
[ 65 FR 37709 , June 16, 2000, as amended at 66 FR 9532 , Feb. 8, 2001; 68 FR 43009 , July 21, 2003]
Goto Section: 52.19 | 52.21
Goto Year: 2008 |
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