The 213 area code is central Los Angeles — downtown and the neighborhoods around it — an original 1947 code that now shares its territory with 323 and, since late 2024, 738, after regulators erased the 213/323 boundary in 2017. A 213 caller is dialing from the LA core, or from a number that started there.
No other major American area code has 213’s arc: it once covered half of California, was cut down by five splits to a few square miles of downtown, and then — almost uniquely in numbering history — was reunited with the code that had been carved out of it.
The code that once covered half of California
When AT&T drew the original area code map in 1947, 213 got the southern half of the state — Los Angeles, San Diego, the Central Coast, everything down to the Mexican border. Growth dismantled that footprint one split at a time:
- 1951 — 714: San Diego and most of Orange County split off.
- 1957 — 805: the Central Coast and northern counties left; 213 was confined to Los Angeles County.
- 1984 — 818: the San Fernando and San Gabriel valleys got their own code, making LA one of the first US cities carved into two numbering areas.
- 1991 — 310: West LA and the South Bay split away that November.
Each split moved someone out; 213 always kept the historic core. By the early 1990s, the code that once reached San Diego stopped at the edges of central Los Angeles. The 818 area code and 310 area code pages tell the Valley and Westside halves of that story.
1998: the 323 carve-out
The fifth and final split was the strangest. On June 13, 1998, area code 323 took the ring of central LA around downtown — Hollywood, Boyle Heights, South LA, the Eastside — while 213 kept only the downtown core: roughly the central business district, Westlake and Koreatown, and the Exposition Park corridor.
The result was a numbering doughnut: 323 wrapped around a tiny 213 island. It relieved the number shortage of the mobile-and-pager boom, but it also split neighborhoods, and it left 213 as one of the smallest geographic area codes in the country — dense with office towers, courts, and civic institutions, which is where its downtown-LA cachet comes from.
2017: the boundary that disappeared
Splits are common. Reversing one is not — and that is exactly what happened here. In 2016 the California Public Utilities Commission approved eliminating the 213/323 boundary, and on July 8, 2017 the two became a single overlay complex: one combined territory where numbers from either code can be assigned anywhere, dialed with 1 + ten digits.
Nobody’s number changed. The doughnut and its hole simply merged. NANPA recommended the approach precisely because the two codes were concentric — a boundary elimination stretched the remaining numbers further than another split would have, without forcing anyone to reprint a business card.
Demand kept climbing anyway. The CPUC approved a third code for the combined region in March 2023, and area code 738 entered service on November 1, 2024, layered over the same footprint. Our area code guide explains why overlays replaced splits as the standard fix.
The unexpected 213 call, screened properly
Search any scam forum and “call from 213” threads surface quickly — which says more about Los Angeles than about the code. The 213/323/738 complex carries an enormous volume of legitimate traffic: courts and county offices, hospitals, banks headquartered downtown, and the call centers that dial on their behalf.
The screening rule is the same one that works everywhere: the displayed code is not evidence. Numbers port, VoIP dials from anywhere, and caller ID spoofing can paint 213 on a call from any continent — including “neighbor spoofing” that mimics your own area code to look familiar. A 213 display neither convicts nor clears a caller.
What settles it is the callback: hang up, look up the organization’s published number yourself, and dial that. A real court, bank, or utility survives that check every time; a spoofer never does.
What a 213 number signals
Because the 1998 split confined 213 to downtown, the code picked up an address-like quality — 213 read as the central business district the way 212 reads as Manhattan. The 2017 merger diluted the geography (a new 213 number can now sit anywhere in the combined territory) but not the perception: 213 remains the oldest continuously operating code in Los Angeles, with 79 years of tenure on the caller ID.
For a business, that perception is usable. Customers across central LA recognize 213 as local and established — and answer it accordingly, which is the entire premise of local presence dialing.
Getting a 213 number for your business
Numbers in the 213/323/738 complex are provisioned by rate center, not street address, so a business serving central Los Angeles — from downtown or from anywhere else — can hold a genuine 213 number as its local front door, subject to available inventory in the code.
SIPNEX provisions local DID numbers across Los Angeles rate centers and every US market, routes them into any phone system over SIP trunking, and signs outbound calls at A-level STIR/SHAKEN attestation — so your legitimate 213 caller ID carries the trust signal spoofed ones can’t.
Frequently asked questions
Why do 213 and 323 cover the same area now?
Because California eliminated the boundary between them on July 8, 2017. 323 had been split out of 213 in 1998, leaving a small 213 island surrounded by 323; regulators merged the two into one overlay complex to stretch the remaining numbers. Since November 2024 the same territory also draws from area code 738. Existing numbers never changed — see our DID number service for what’s assignable today.
Is a 213 number older than a 323 number?
As codes, yes: 213 dates to the original 1947 numbering plan, while 323 launched June 13, 1998. As individual numbers, not necessarily — since the 2017 boundary elimination, new lines anywhere in the combined territory can be assigned from either code, so a 213 number may be brand new.
What is the 738 area code?
The newest overlay on the 213/323 region, in service since November 1, 2024. The CPUC approved it in March 2023 as the combined pool neared exhaustion. A 738 number covers exactly the same central Los Angeles territory as 213 and 323 and is just as local — merely newer.
Why am I getting calls from 213 numbers I don’t know?
Central Los Angeles generates heavy legitimate outbound traffic — government offices, hospitals, banks, and their contractors — and 213 is also a popular disguise for caller ID spoofing because it looks big-city credible. Don’t judge by the code: tell an inbound caller nothing they could use, then confirm through the organization’s published line.
SIPNEX is an FCC-licensed carrier providing Los Angeles DIDs and local numbers across US area codes, toll-free numbers as a registered RespOrg, and dialer-grade SIP trunking — every call signed with our own STIR/SHAKEN certificate. Talk to an operator at (833) 665-2220, reach us online, or see rates.
Keep reading.
The carrier built by operators, for operators.
FCC-licensed carrier with its own STIR/SHAKEN SP certificate. Operator-owned. SIP trunks built for operators who dial at volume.