Los Angeles:da 10, CA — rate center

NANPA rate center & CO code data, current as of July 28, 2026.

Phone numbers "from Los Angeles:da 10" are, precisely speaking, numbers whose prefixes are anchored to the Los Angeles:da 10 rate center of California, under 213, 738.

NANPA records show 114 active prefixes here across 21 carriers. 81 prefixes participate in thousands-block pooling, so blocks of 1,000 numbers are shared between carriers.

The rate center belongs to the Los Angeles-Long Beach-Anaheim, CA Metropolitan Statistical Area. Routing-wise it sits in LATA 730.

Multiple area codes over one rate center (213/738) is the overlay pattern: same geography, different first three digits.

At 114 prefixes — a ceiling of 1,140,000 numbers — Los Angeles:da 10 is one of California's heavyweight rate centers.

As always with US numbering: a prefix anchored to Los Angeles:da 10 tells you where the block was issued. The person calling may have ported the number, moved away, or be spoofing it entirely — verify callers through independently found contact details.

Prefixes anchored to Los Angeles:da 10

FAQ

What area code is Los Angeles:da 10, CA?

Los Angeles:da 10 is served by 2 area codes — 213, 738 — which overlay the same territory.

How many prefixes does Los Angeles:da 10 have?

114 active NXX prefixes are anchored to this rate center in NANPA records, held by 21 carriers.

Is a call from a Los Angeles:da 10 prefix really from Los Angeles:da 10?

Not necessarily. The prefix marks where the number block was issued; porting, VoIP and spoofing all detach calls from that geography.