RSI claims folders are maintained primarily in the PSCs. The appropriate PSC to contact can be determined by checking the first three (left side) digits of the SSN and comparing them to the chart below. For example, if the first three digits are 076, the appropriate PSC to contact would be the Northeastern PSC; similarly, if the first three digits were 437, the appropriate PSC would be the Great Lakes PSC. If the first three digits fall within the range of:
001 - 134 contact the Northeastern PSC
135 - 222 contact the Mid-Atlantic PSC
223 - 231 contact the Southeastern PSC
232 - 236 contact the Mid-Atlantic PSC
237 - 267 contact the Southeastern PSC
268 - 302 contact the Great Lakes PSC
303 - 315 contact the Mid-America PSC
316 - 399 contact the Great Lakes PSC
400 - 428 contact the Southeastern PSC
429 - 500 contact the Mid-America PSC
501 - 504 contact the Western PSC
505 - 515 contact the Mid-America PSC
516 - 524 contact the Western PSC
525 contact the Mid-America PSC
526 - 576 contact the Western PSC
577 - 584 contact the Mid-Atlantic PSC
585 contact the Mid-America PSC
586 contact the Western PSC
587 contact the Southeastern PSC
700 - 729 contact the Great Lakes PSC