667 Area Code

Maryland

April 23, 2024

Area Code:	667
State/Region:	Maryland
Major Cities:

Time Zone:	Eastern
Current Time:	7:20 AM

Date Assigned:	1/17/01
In Service Since:	3/24/12
Overlay?:	Yes
Overlay Complex:	410/443/667

Local Call Dialing:	10D
Toll Call Dialing:	1+10D

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667 Prefixes/Exchanges

Prefix

Location / Company

Company

Assigned

667-200

COLUMBIA, MD

ONVOY, LLC - MD

12/18/15

667-201

BEL AIR, MD

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD

11/17/15

667-202

ELKTON, MD

ONVOY, LLC - MD

2/17/16

667-203

BALTIMORE, MD

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD

2/8/12

667-204

ANNAPOLIS, MD

US LEC OF MARYLAND, INC.

12/29/16

667-205

BALTIMORE, MD

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD

2/8/12

667-206

TOWSON, MD

METRO PCS, INC.

7/16/13

667-207

BALTIMORE, MD

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD

2/8/12

667-208

BALTIMORE, MD

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD

2/8/12

667-209

BALTIMORE, MD

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD

2/8/12

667-210

BALTIMORE, MD

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD

2/8/12

667-211

[UNASSIGNED]

667-212

BALTIMORE, MD

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD

2/8/12

667-213

BALTIMORE, MD

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD

2/8/12

667-214

BALTIMORE, MD

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD

2/8/12

667-215

ELKTON, MD

COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD

9/27/16

667-216

BALTIMORE, MD

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD

2/8/12

667-217

BALTIMORE, MD

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD

2/8/12

667-218

BALTIMORE, MD

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD

2/8/12

667-219

BALTIMORE, MD

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD

2/8/12

667-220

GREENSBORO, MD

ONVOY, LLC - MD

3/24/17

667-221

SALISBURY, MD

TELNYX LLC

6/14/17

667-222

ARGRGBSNIS, MD

ONVOY, LLC - MD

8/17/15

667-223

BALTIMORE, MD

VONAGE NETWORK INC.

8/4/17

667-224

BALTIMORE, MD

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD

2/8/12

667-225

ANNAPOLIS, MD

NEW CINGULAR WIRELESS PCS, LLC - DC

7/15/14

667-226

STMICHAELS, MD

ONVOY, LLC - MD

3/27/17

667-227

SALISBURY, MD

ATLANTECH ONLINE, INC. - MD

9/15/17

667-228

ABERDEEN, MD

OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC

1/21/15

667-229

ABERDEEN, MD

OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC

2/18/16

667-230

CENTREVL, MD

PEERLESS NETWORK OF MARYLAND, LLC

2/13/18

667-231

ABERDEEN, MD

XO MARYLAND, LLC

7/31/13

667-232

GLENBURNIE, MD

TELEPORT COMMUNICATIONS AMERICA, LLC - MD

4/4/18

667-233

BALTIMORE, MD

VERIZON MARYLAND, INC.

2/13/15

667-234

BALTIMORE, MD

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD

2/8/12

667-235

SALISBURY, MD

VONAGE NETWORK INC.

6/1/18

667-236

PERRYVILLE, MD

CORE COMMUNICATIONS, INC. - MD

6/11/18

667-237

WEST RIVER, MD

CORE COMMUNICATIONS, INC. - MD

6/11/18

667-238

PRESTON, MD

CORE COMMUNICATIONS, INC. - MD

6/12/18

667-239

BALTIMORE, MD

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD

2/8/12

667-240

COLUMBIA, MD

BARR TELL USA, INC.

11/22/16

667-241

RIDGELY, MD

CORE COMMUNICATIONS, INC. - MD

6/12/18

667-242

ROCK HALL, MD

CORE COMMUNICATIONS, INC. - MD

6/12/18

667-243

OXFORD, MD

CORE COMMUNICATIONS, INC. - MD

6/4/18

667-244

STILL POND, MD

CORE COMMUNICATIONS, INC. - MD

6/12/18

667-245

CECILTON, MD

CORE COMMUNICATIONS, INC. - MD

6/12/18

667-246

CENTREVL, MD

CORE COMMUNICATIONS, INC. - MD

6/12/18

667-247

CHESAPKECY, MD

CORE COMMUNICATIONS, INC. - MD

6/12/18

667-248

DENTON, MD

CORE COMMUNICATIONS, INC. - MD

6/12/18

667-249

GALENA, MD

CORE COMMUNICATIONS, INC. - MD

6/12/18

667-250

BALTIMORE, MD

ONVOY SPECTRUM, LLC

6/19/18

667-251

TOWSON, MD

LEVEL 3 COMMUNICATIONS, LLC - MD

12/24/14

667-252

SALISBURY, MD

ONVOY SPECTRUM, LLC

6/19/18

667-253

SALISBURY, MD

BRIGHTLINK COMMUNICATIONS, LLC

3/11/13

667-254

CHESTERTN, MD

TALKIE COMMUNICATIONS, INC. - MD

8/13/18

667-255

HILLSBORO, MD

ONVOY, LLC - MD

8/22/18

667-256

ABERDEEN, MD

EXIANT COMMUNICATIONS LLC

9/27/18

667-257

COLUMBIA, MD

VONAGE NETWORK INC.

11/14/18

667-258

BALTIMORE, MD

AIRESPRING, INC.

11/14/18

667-259

REISTERSTN, MD

MCI WORLDCOM COMMUNICATIONS, INC. - MD

12/21/18

667-260

BALTIMORE, MD

GETGO COMMUNICATIONS LLC - MD

12/29/14

667-261

TOWSON, MD

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD

1/18/19

667-262

BALTIMORE, MD

TALKIE COMMUNICATIONS, INC. - MD

1/22/19

667-263

TOWSON, MD

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD

2/11/19

667-264

DELMAR, MD

MCI WORLDCOM COMMUNICATIONS, INC. - MD

2/20/19

667-265

VIENNA, MD

MCI WORLDCOM COMMUNICATIONS, INC. - MD

3/22/19

667-266

SALISBURY, MD

COMMIO, LLC

6/20/17

667-267

ANNAPOLIS, MD

CORE COMMUNICATIONS, INC. - MD

10/22/18

667-268

DARLINGTON, MD

BANDWIDTH.COM CLEC, LLC - MD

6/19/19

667-269

ELKTON, MD

CORE COMMUNICATIONS, INC. - MD

10/15/18

667-277

SHERWD FOR, MD

CORE COMMUNICATIONS, INC. - MD

5/31/18

667-281

SALISBURY, MD

PEERLESS NETWORK OF MARYLAND, LLC

5/25/16

667-285

HURLOCK, MD

ONVOY, LLC - MD

3/24/17

667-291

MILLINGTON, MD

ONVOY, LLC - MD

3/27/17

667-295

CROFTON, MD

CORE COMMUNICATIONS, INC. - MD

10/15/18

667-300

COLUMBIA, MD

CORE COMMUNICATIONS, INC. - MD

6/1/18

667-303

BALTIMORE, MD

BRIGHTLINK COMMUNICATIONS, LLC

3/11/13

667-305

PIKESVILLE, MD

BRIGHTLINK COMMUNICATIONS, LLC

5/10/13

667-307

CROFTON, MD

PEERLESS NETWORK OF MARYLAND, LLC

4/9/13

667-308

TOWSON, MD

PEERLESS NETWORK OF MARYLAND, LLC

11/20/12

667-309

BALTIMORE, MD

LOCAL ACCESS LLC - MD

8/1/13

667-311

[UNASSIGNED]

667-312

BALTIMORE, MD

ATLANTECH ONLINE, INC. - MD

5/11/15

667-313

PIKESVILLE, MD

MCI WORLDCOM COMMUNICATIONS, INC. - MD

12/16/15

667-314

WESTMINSTR, MD

BARR TELL USA, INC.

667-321

PRINCEFRCK, MD

OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC

6/21/16

667-326

CHURCHHILL, MD

CORE COMMUNICATIONS, INC. - MD

12/10/18

667-330

SALISBURY, MD

US LEC OF MARYLAND, INC.

5/23/12

667-332

NEWWINDSOR, MD

CORE COMMUNICATIONS, INC. - MD

10/15/18

667-333

ARGRGBSNIS, MD

BALTIMORE-WASHINGTON TELEPHONE (BWT)

5/14/15

667-336

BEL AIR, MD

CORE COMMUNICATIONS, INC. - MD

6/1/18

667-344

CHASE, MD

TELNYX LLC

667-345

CATONSVL, MD

CORE COMMUNICATIONS, INC. - MD

6/4/18

667-352

ABERDEEN, MD

OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC

11/14/16

667-362

ANNAPOLIS, MD

CORE COMMUNICATIONS, INC. - MD

10/18/18

667-364

STEVENSVL, MD

CORE COMMUNICATIONS, INC. - MD

6/4/18

667-366

HAMPSTEAD, MD

CORE COMMUNICATIONS, INC. - MD

10/15/18

667-367

WESTMINSTR, MD

BALTIMORE-WASHINGTON TELEPHONE (BWT)

5/21/15

667-372

CAMBRIDGE, MD

CORE COMMUNICATIONS, INC. - MD

10/15/18

667-373

NORTHBEACH, MD

CORE COMMUNICATIONS, INC. - MD

10/15/18

667-382

WINGATE, MD

CORE COMMUNICATIONS, INC. - MD

10/16/18

667-400

BALTIMORE, MD

BARR TELL USA, INC.

11/10/16

667-401

BALTIMORE, MD

LEVEL 3 COMMUNICATIONS, LLC - MD

11/20/12

667-402

BALTIMORE, MD

TELNYX LLC

12/2/16

667-411

[UNASSIGNED]

667-443

[UNASSIGNED]

667-444

BALTIMORE, MD

ONVOY, LLC - MD

8/17/15

667-458

ANNAPOLIS, MD

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD

5/10/16

667-473

SOLOMONS, MD

CORE COMMUNICATIONS, INC. - MD

10/16/18

667-500

ANNAPOLIS, MD

CORE COMMUNICATIONS, INC. - MD

6/1/18

667-511

[UNASSIGNED]

667-545

WARWICK, MD

CORE COMMUNICATIONS, INC. - MD

10/16/18

667-555

[UNASSIGNED]

667-600

BALTIMORE, MD

WORLDCALL INTERCONNECT INC.

9/22/15

667-611

[UNASSIGNED]

667-627

ANNAPOLIS, MD

CORE COMMUNICATIONS, INC. - MD

10/18/18

667-653

BRYNPKLNCM, MD

CORE COMMUNICATIONS, INC. - MD

12/11/18

667-666

WEST RIVER, MD

VOXBEAM TELECOMMUNICATIONS INC. - MD

3/30/16

667-667

[UNASSIGNED]

667-677

BALTIMORE, MD

BROADVOX-CLEC, LLC - MD

5/8/15

667-686

ELLICOTTCY, MD

CORE COMMUNICATIONS, INC. - MD

10/15/18

667-700

[UNASSIGNED]

667-701

ELKRIDGE, MD

NEW CINGULAR WIRELESS PCS, LLC - DC

10/19/15

667-706

ELKTON, MD

OMNIPOINT COMMUNICATIONS ENTERPRISES, L.P.

5/23/16

667-711

[UNASSIGNED]

667-722

GLENWOOD, MD

CORE COMMUNICATIONS, INC. - MD

10/15/18

667-727

SUDLERSVL, MD

CORE COMMUNICATIONS, INC. - MD

10/16/18

667-770

BALTIMORE, MD

AIRUS, INC. - MD

7/23/15

667-771

BALTIMORE, MD

WIDE VOICE, LLC - MD

12/4/15

667-777

SEVERNA PK, MD

PEERLESS NETWORK OF MARYLAND, LLC

7/8/14

667-786

COLUMBIA, MD

TELEPORT COMMUNICATIONS AMERICA, LLC - MD

11/4/15

667-800

SALISBURY, MD

ONVOY, LLC - MD

8/16/16

667-802

CATONSVL, MD

OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC

2/20/15

667-803

SOLOMONS, MD

BANDWIDTH.COM CLEC, LLC - MD

8/16/13

667-808

EASTON, MD

PEERLESS NETWORK OF MARYLAND, LLC

8/23/16

667-811

[UNASSIGNED]

667-812

WATERLO236, MD

VERIZON MARYLAND, INC.

8/14/15

667-837

PT DEPOSIT, MD

CORE COMMUNICATIONS, INC. - MD

10/16/18

667-843

DEALISLAND, MD

CORE COMMUNICATIONS, INC. - MD

12/10/18

667-855

SALISBURY, MD

TERRA NOVA TELECOM INC.

2/22/19

667-866

DARLINGTON, MD

CORE COMMUNICATIONS, INC. - MD

6/4/18

667-867

BALTIMORE, MD

COMMIO, LLC

6/20/17

667-868

CRISFIELD, MD

CHARTER FIBERLINK - MARYLAND II, LLC - MD

3/9/18

667-876

ANNAPOLIS, MD

CORE COMMUNICATIONS, INC. - MD

10/18/18

667-888

BALTIMORE, MD

VOXBEAM TELECOMMUNICATIONS INC. - MD

7/28/14

667-900

BALTIMORE, MD

TERRA NOVA TELECOM INC.

2/20/19

667-911

[UNASSIGNED]

667-930

BALTIMORE, MD

RCLEC, INC. - MD

3/17/15

667-946

CHURCHVL, MD

CORE COMMUNICATIONS, INC. - MD

10/15/18

667-950

[UNASSIGNED]

667-958

[UNASSIGNED]

667-959

[UNASSIGNED]

667-967

GLENBURNIE, MD

BARR TELL USA, INC.

11/22/16

667-976

[UNASSIGNED]

667-999

ELKRIDGE, MD

ONVOY, LLC - MD

3/23/15

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