North American NumbersHudson Valley
Serves the mid- and lower Hudson Valley (Orange, Putnam, Rockland and Ulster counties in full, plus parts of others). Split from 914 in 2000.
Status, dates and counts are read from NumberResearch (NANPA / CNAC / FCC records). Assignment records show initial assignees, not the carrier serving a number today.
Where 845 is
Mid- and lower Hudson Valley, New York State.
Communities served wholly or partly by 845:
Representative; whole counties Orange/Putnam/Rockland/Ulster plus parts of Columbia, Delaware, Dutchess, Greene, Sullivan.
How it relates to other codes
The codes 845 was split from, spawned, or shares its area with. A split divides the map and changes some numbers; an overlay shares the same ground and changes none — what's the difference?
How 845 got here
How full it is
Prefix-assignment counts describe allocation to carriers, not how many individual numbers are in use. Full technical records: NumberResearch ↗.
Place, relationships and history above are compiled by North American Numbers from the sources listed and last checked 2026-09-18. A check date is not an expert review — see how this is made. Flag an error.