NumberingData
Verified Nov 1, 2026 · Source: NANPA CO Code Assignment Records

Area code 369 prefixes

55 of the 786 possible NXX blocks are assigned in area code 369 (7.0% of capacity), spread across 34 rate centers and 13 holders. The largest holders are NEW CINGULAR WIRELESS PCS, LLC (12 blocks, 21.8%), ONVOY, LLC - CA (11 blocks, 20.0%), T-MOBILE USA, INC. (9 blocks, 16.4%). Grouped by brand, AT&T accounts for 13 blocks; brand-attributable holders cover 76% of the code, and the rest are CLECs, VoIP wholesalers and regional carriers that trade under their own names. The assignment records here run from 2023-05-04 to 2026-10-20, with 18 blocks handed out in 2023 alone. 53 blocks (96%) are in thousands-block pooling, meaning the block is shared between carriers in 1,000-number lots rather than held whole – which is why a single NXX can serve several carriers at once. 5 assigned blocks (243, 244, 245, 369, 900) are not yet in service: assigned to a carrier but not open for calls, so a caller ID from one is spoofed. 37 were growth assignments – additional blocks to a carrier that had already filled its earlier ones.

55 assigned blocks of 786
34 rate centers
13 holders of record
96% in thousands-block pooling

Largest holders in 369

Holder of record, as NANPA names itBrandBlocksShare
NEW CINGULAR WIRELESS PCS, LLC AT&T 12 21.8%
ONVOY, LLC - CA Onvoy 11 20%
T-MOBILE USA, INC. T-Mobile 9 16.4%
COMMIO, LLC – 7 12.7%
WIDE VOICE, LLC - CA – 4 7.3%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA Verizon 3 5.5%
SHELCOMM – 2 3.6%
ONVOY SPECTRUM, LLC Charter 2 3.6%
BOOST SUBSCRIBERCO L.L.C. Dish 1 1.8%
TELEPORT COMMUNICATIONS AMERICA, LLC - CA AT&T 1 1.8%
METROPCS, INC. T-Mobile 1 1.8%
PAETEC ITEL, LLC Windstream 1 1.8%

Names are printed as they appear in the assignment records, which is the legal entity rather than the brand. Holding a block is not the same as serving the numbers in it: portability moves numbers between carriers and pooling splits a block between several.

Rate centers with their own page

Rate centers where at least three blocks are assigned, excluding the numbered metro zone codes. The remainder are in the full table below.

All 55 assigned blocks

One row per NXX. “Pooled” means carriers draw 1,000-number lots from the block rather than holding all 10,000, so a pooled prefix can belong to several carriers at once. “Not in service” means assigned but not yet open for calls – a caller ID from one of those is necessarily spoofed. The holder column gives the brand where the legal entity maps to one; the full legal names are in the holders table above, exactly as NANPA records them.

PrefixHolder of recordRate centerAssignedPooledIn service
369-200 Dish DIXON 2023-05-04 yes yes
369-201 AT&T SANTA ROSA 2023-08-04 yes yes
369-202 AT&T SANTA ROSA 2023-08-04 yes yes
369-203 COMMIO, LLC BRIDGEVL 2023-08-10 yes yes
369-204 COMMIO, LLC CLERLAOAKS 2023-08-10 yes yes
369-205 COMMIO, LLC GUERNEVL 2023-08-10 yes yes
369-206 COMMIO, LLC MIRANDA 2023-08-10 yes yes
369-207 COMMIO, LLC TRINIDAD 2023-08-10 yes yes
369-208 T-Mobile SANTA ROSA 2023-08-10 yes yes
369-209 AT&T NAPA 2023-08-22 yes yes
369-210 Onvoy SANTA ROSA 2023-10-02 yes yes
369-212 T-Mobile FRFLD-SUIS 2023-10-10 yes yes
369-213 T-Mobile HEALDSBURG 2023-10-18 yes yes
369-214 COMMIO, LLC SANTA ROSA 2023-12-21 yes yes
369-215 COMMIO, LLC LOWER LAKE 2023-12-29 yes yes
369-216 T-Mobile UKIAH 2024-01-10 yes yes
369-217 T-Mobile VALLEJO 2024-01-19 yes yes
369-218 T-Mobile FRFLD-SUIS 2024-08-20 yes yes
369-219 Verizon SANTA ROSA 2024-08-21 yes yes
369-220 SHELCOMM SONOMA 2024-09-12 – yes
369-221 SHELCOMM SANTA ROSA 2024-09-12 – yes
369-222 AT&T VACAVILLE 2024-09-17 yes yes
369-223 T-Mobile BENICIA 2024-10-23 yes yes
369-224 AT&T EUREKA 2024-11-20 yes yes
369-225 Verizon WINDSOR 2024-12-09 yes yes
369-226 AT&T ARCATA 2024-12-16 yes yes
369-227 Charter EUREKA 2025-01-02 yes yes
369-228 Charter POINTARENA 2025-01-02 yes yes
369-229 AT&T DIXON 2025-01-06 yes yes
369-230 AT&T SANTA ROSA 2025-01-13 yes yes
369-231 T-Mobile MIRANDA 2025-03-28 yes yes
369-232 Verizon CRESCENTCY 2025-05-08 yes yes
369-233 AT&T LAKEPORT 2025-07-02 yes yes
369-234 AT&T FORTUNA 2025-08-22 yes yes
369-235 T-Mobile BENICIA 2025-09-12 yes yes
369-236 AT&T SANTA ROSA 2025-11-12 yes yes
369-237 AT&T LOWER LAKE 2025-12-10 yes yes
369-238 Onvoy HEALDSBURG 2025-12-11 yes yes
369-239 Onvoy PTLM SWIFT 2025-12-18 yes yes
369-240 Windstream FRFLD-SUIS 2026-01-14 yes yes
369-241 Onvoy PTLM MAIN 2026-01-30 yes yes
369-242 T-Mobile MIDDLETOWN 2026-04-15 yes yes
369-243 Onvoy LOWER LAKE 2026-09-14 yes no
369-244 AT&T PTLM SWIFT 2026-10-02 yes no
369-245 Onvoy SANTA ROSA 2026-10-20 yes no
369-333 Onvoy LOLETA 2025-12-22 yes yes
369-369 Onvoy LKBERRYESS 2026-10-09 yes no
369-444 WIDE VOICE, LLC - CA SANTA ROSA 2025-07-14 yes yes
369-666 Onvoy MENDOCINO 2025-12-22 yes yes
369-777 WIDE VOICE, LLC - CA SONOMA 2023-07-14 yes yes
369-867 Onvoy GUALALA 2025-09-11 yes yes
369-888 WIDE VOICE, LLC - CA FERNDALE 2023-05-05 yes yes
369-900 Onvoy BLUE LAKE 2026-10-09 yes no
369-998 Peerless MONTE RIO 2026-05-15 yes yes
369-999 WIDE VOICE, LLC - CA KENWOOD 2023-05-05 yes yes

Frequently asked

How many prefixes does area code 369 have?

55 NXX blocks are assigned of 786 possible. Each block is 10,000 consecutive numbers, so the code currently covers about 550 thousand-number ranges across 34 rate centers.

What do the first three digits after 369 tell me?

They identify the block, which tells you the rate center it was allocated to and the carrier that received it. They do not tell you who serves the number today: portability moves numbers between carriers, and pooling splits a block between several of them.

Is a 369 prefix tied to a specific town?

To a rate center, which is billing geography rather than a town. NANPA abbreviates rate center names to ten characters and in large metros uses zone codes, so the name is a NANPA label, not a place name.

What does “pooled” mean in the 369 table?

That the block is in thousands-block pooling: carriers draw 1,000-number lots from it instead of taking all 10,000. 53 of 369's blocks are pooled, which is how regulators slowed down area code exhaustion – and why one prefix can belong to several carriers.

Source and limits

NANPA CO Code Assignment Records, all states, utilized codes, file updated 11/01/2026 – the rows where the record's Use field is “AS” (assigned). Unavailable codes are excluded. The records say who received a block and when, not who serves a particular number today.

More about this code: overview · carriers · spam complaints · local time