Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Switch: SNFCCA21DS0

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
415-222 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-227 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-227 0 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-227 1 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-227 2 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-227 3 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-227 4 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-227 5 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-227 8 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-227 9 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-247 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-267 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-267 0 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-267 1 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-267 2 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-267 3 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-267 4 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-267 5 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-267 6 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-267 7 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-267 8 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-278 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-278 0 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-278 2 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-278 4 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-278 5 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-278 6 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-278 7 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-278 9 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-344 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-348 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-348 0 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-348 1 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-348 2 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-348 3 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-348 4 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-348 5 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-348 6 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-348 7 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-348 8 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-356 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-357 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-396 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-427 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-495 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-495 0 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-495 1 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-495 2 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-495 3 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-495 4 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-495 5 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-495 6 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-495 7 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-495 8 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-498 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-498 2 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-498 3 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-498 5 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-498 6 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-498 7 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-498 8 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-498 9 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-538 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-541 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-541 0 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-541 1 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-541 2 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-541 3 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-541 4 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-541 5 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-541 7 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-541 8 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-541 9 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-543 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-597 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-597 0 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-597 1 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-597 2 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-597 3 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-597 4 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-597 5 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-597 7 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-597 8 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-597 9 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-618 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-618 0 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-618 1 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-618 2 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-618 3 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-618 4 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-618 5 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-618 6 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-618 7 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-618 8 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-670 2 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-670 3 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-670 4 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-670 6 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-670 7 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-736 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      

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Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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