Number Pooling - Pre-NPAC

SP requests

TN block

within a rate

center 1

NPAC rcves 1K block assgn info

-TN Block

-Eff. Date

-SPID

-Default DPC

-Default LRN

6

Deletes TN Inventory

from internal TN inventory OSS

7

Pool Administrator responds within 10 business days and assigns 1K block from avlble ranges

2

Pool Administrator documents & distributes required data:

- Eff. Date(See Note 9)

- 1K Block

- SPIDs (Donor & Recipient)

- Donor LERG OCN

- Default LRN

- Default DPC

- From switch-CLLI

- To switch-CLLI

3

Donor SP

receives block

assgn

notification

4B

Enters a Inter-SP

port on 1K range

with DD=Eff Date (See Note 1)

5B

Enters a Inter-SP

port on 1K range

with DD=Eff Date (See Note 5)

5A

Recipient SP

receives new

block

assignment

4A

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