Number utilization improved slightly this year, with 46% of natio...
Number utilization improved slightly this year, with 46% of nation’s telephone numbers being used as of June 30, compared with 45% year before, according to report issued Tues. by FCC. Low percentage reflects way numbers are assigned -- in…
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blocks of 1,000 numbers at minimum, all of which have to be used in same small geographic area or rate center. Even if carrier needs to serve only 50 customers in one rate center, it still has to obtain 1,000 numbers. That actually is improvement because, until recently, numbers came only in 10,000-number blocks. Smaller 1,000 block segments are available now in some states through process called number pooling. FCC report said carriers had nearly 1.2 billion telephone numbers, 470 million of them assigned to customers, 600 million available for assignment and 110 million used for other purposes. Report showed utilization rate was 52.1% for ILECs, 10.9% for CLECs, 45.3% for cellular/PCS providers, 24.8% for paging carriers.