Area code overview

Area code 301: location, prefixes and phone number lookup

Area code 301 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 301, 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

301

LOCATION

STATE / REGION

How area code 301 is used

Area code 301 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 301 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 301

800 prefixes

These prefixes sit inside area code 301 and provide the next level of detail for users who want to narrow the numbering structure further.

Prefix

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

Rate centers

66 rate centers

These local numbering hubs are linked to area code 301 and help users move from a broad regional layer into more specific local structure.

Rate center

WSHNGTNZN3 WSHNGTNZN2 WSNG236Z13 WSNGTNZN10 WSHNGTNZN4 FREDERICK WSHNGTNZN5 GAITHERSBG WSNGTNZN11 WALDORF LAUREL236 WSHNGTNZN6 HAGERSTOWN WSNG236Z14 WSNGTNZN12 CUMBERLAND LXTNPKGRML WSNG238Z14 WSNGTNZN16 ASHTON236 LEONARDTN MYERSVILLE XXXXXXXXXX OAKLAND WSNG236Z15 DAMASCS236 INDIANHEAD LAUREL238 BRANDYWINE DAMASCS240 WSNG238Z15 KEEDYSVL LA PLATA MECHANCSVL ASHTON238 BRUNSWICK BUCKEYSTN CLEAR SPG FRIENDSVL FROSTBURG KITZMILLER MOUNT AIRY NEW MARKET POOLESVL WALKERSVL BALTIMORE BITTINGER DIR ASST EMMITSBURG FLINTSTONE GRANTSVL HANCOCK HIGHFIELD HUGHESVL LONACONING MCCOOLE MIDDLETOWN MT SAVAGE NANJEMOY RIDGE SMITHSBURG THURMONT TOMPKINSVL WESTERNPT WILLIAMSPT WSNG238Z13