Area code overview

Area code 443: location, prefixes and phone number lookup

Area code 443 is associated with MD. This page helps users understand the broader numbering region behind the area code and provides direct access to its visible prefixes, related rate centers and deeper phone lookup paths.

In the United States, an area code is the broad regional layer of the public numbering system. It does not identify one exact person or one exact caller, but it does help explain the larger numbering geography connected to a phone number.

If you are trying to understand calls from area code 443, identify a suspicious number, or browse the structure behind this numbering region, the next useful step is usually to open one of the prefixes or rate centers shown below.

AREA CODE

443

LOCATION

STATE / REGION

How area code 443 is used

Area code 443 is part of the public US numbering structure and works as a broad regional entry point. Inside it, multiple prefixes can exist, and those prefixes may connect to different local numbering hubs.

That is why area code pages are helpful: they give users a wider view first, then make it easier to narrow the search into local prefixes, rate centers and phone-specific pages.

For many searches, that is exactly the right workflow: start broad with the area code, then move to the smaller numbering layers that sit underneath it.

What users usually want to know

Users often arrive here because they want to know where area code 443 is used, whether a suspicious call may be connected to this numbering region, or how to move from the area code into more specific number ranges.

This page is designed to answer those questions quickly by showing the prefixes and local rate centers linked to the area code.

If you already know the full number, the best final destination is usually the direct phone page. If not, the lists below are the best next step.

Prefixes in area code 443

800 prefixes

These prefixes sit inside area code 443 and provide the next level of detail for users who want to narrow the numbering structure further.

Prefix

443-200 443-201 443-202 443-203 443-204 443-205 443-206 443-207 443-208 443-209 443-210 443-211 443-212 443-213 443-214 443-215 443-216 443-217 443-218 443-219 443-220 443-221 443-222 443-223 443-224 443-225 443-226 443-227 443-228 443-229 443-230 443-231 443-232 443-233 443-234 443-235 443-236 443-237 443-238 443-239 443-240 443-241 443-242 443-243 443-244 443-245 443-246 443-247 443-248 443-249 443-250 443-251 443-252 443-253 443-254 443-255 443-256 443-257 443-258 443-259 443-260 443-261 443-262 443-263 443-264 443-265 443-266 443-267 443-268 443-269 443-270 443-271 443-272 443-273 443-274 443-275 443-276 443-277 443-278 443-279 443-280 443-281 443-282 443-283 443-284 443-285 443-286 443-287 443-288 443-289 443-290 443-291 443-292 443-293 443-294 443-295 443-296 443-297 443-298 443-299 443-300 443-301 443-302 443-303 443-304 443-305 443-306 443-307 443-308 443-309 443-310 443-311 443-312 443-313 443-314 443-315 443-316 443-317 443-318 443-319 443-320 443-321 443-322 443-323 443-324 443-325 443-326 443-327 443-328 443-329 443-330 443-331 443-332 443-333 443-334 443-335 443-336 443-337 443-338 443-339 443-340 443-341 443-342 443-343 443-344 443-345 443-346 443-347 443-348 443-349 443-350 443-351 443-352 443-353 443-354 443-355 443-356 443-357 443-358 443-359 443-360 443-361 443-362 443-363 443-364 443-365 443-366 443-367 443-368 443-369 443-370 443-371 443-372 443-373 443-374 443-375 443-376 443-377 443-378 443-379 443-380 443-381 443-382 443-383 443-384 443-385 443-386 443-387 443-388 443-389 443-390 443-391 443-392 443-393 443-394 443-395 443-396 443-397 443-398 443-399 443-400 443-401 443-402 443-403 443-404 443-405 443-406 443-407 443-408 443-409 443-410 443-411 443-412 443-413 443-414 443-415 443-416 443-417 443-418 443-419 443-420 443-421 443-422 443-423 443-424 443-425 443-426 443-427 443-428 443-429 443-430 443-431 443-432 443-433 443-434 443-435 443-436 443-437 443-438 443-439 443-440 443-441 443-442 443-443 443-444 443-445 443-446 443-447 443-448 443-449 443-450 443-451 443-452 443-453 443-454 443-455 443-456 443-457 443-458 443-459 443-460 443-461 443-462 443-463 443-464 443-465 443-466 443-467 443-468 443-469 443-470 443-471 443-472 443-473 443-474 443-475 443-476 443-477 443-478 443-479 443-480 443-481 443-482 443-483 443-484 443-485 443-486 443-487 443-488 443-489 443-490 443-491 443-492 443-493 443-494 443-495 443-496 443-497 443-498 443-499

Rate centers

83 rate centers

These local numbering hubs are linked to area code 443 and help users move from a broad regional layer into more specific local structure.

Rate center

BALTIMORE ANNAPOLIS TOWSON COLUMBIA GLENBURNIE CATONSVL PIKESVILLE SALISBURY BEL AIR ABERDEEN WESTMINSTR COCKEYSVL ELKTON ESSEX PARKVILLE WOODLAWN ARBUTUS DUNDALK FALLSTON SEVERNA PK EASTON EDGEWOOD ELKRIDGE ELLICOTTCY PRINCEFRCK RANDALLSTN SEVERN SYKESVILLE XXXXXXXXXX ARGRGBSNIS REISTERSTN WATERLO238 BRYNPKLNCM CAMBRIDGE CHASE SPARROWSPT WATERLO236 FORK HAMPSTEAD NORTH EAST ODENTON CARDIFF CHESTERTN CHURCHVL CROFTON DELMAR HAVREGRACE JARRETTSVL MILLERSVL NORTHBEACH PERRYVILLE SPARKSGLNC WEST RIVER WORTHINGTN GLENWOOD NEWWINDSOR OCEAN CITY PARKTON PT DEPOSIT SILVER RUN TANEYTOWN BERLIN CENTREVL DARLINGTON POCOMOKE PRINCEANNE SHERWD FOR SOLOMONS UNION BDG BISHOPVL CHESAPKECY CRISFIELD DENTON DIR ASST FEDERALSBG NANTICOKE QUEENSTOWN SHARPTOWN SNOW HILL STEVENSVL TRAPPE VIENNA WILLARDS