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  2. Area code 203

Area Code 203 Information and Location Details

The 203 area code is located in New Haven, Connecticut including Darien, Guilford and was originally put into service on February 4th 1994. Find whose number this is.

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Country

United States of America

State

Connecticut

Largest City

New Haven

Timezone

Eastern

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203 Area Code Prefixes Directory

If you know the complete number you’re looking up, please use the Phone Number Search above. Or to explore prefixes in different coverage areas, please use the tables below.

Bandwidth.com Clec
Carrier

Coverage Area
Counties: New Haven,
Cities: New Haven, Newtown, Seymour

(203) 200
(203) 491
(203) 941

Usa Mobility Wireless
Carrier

Coverage Area
Counties: New Haven,
Cities: New Haven, Bridgeport, Stamford, Danbury, Norwalk

(203) 201
(203) 279
(203) 282
(203) 289
(203) 342
(203) 390
(203) 398
(203) 477
(203) 593
(203) 833
(203) 835
(203) 839

Cablevision Lightpath
Carrier

Coverage Area
Counties: Fairfield, , New Haven
Cities: Darien, Wilton, Trumbull, Huntington, Ridgefield, Stamford, Milford, Fairfield, New Haven, Greenwich, Old Greenwich, Bridgeport, Norwalk, Westport, Redding, New Canaan, Danbury

(203) 202
(203) 210
(203) 220
(203) 242
(203) 244
(203) 252
(203) 276
(203) 283
(203) 292
(203) 298
(203) 340
(203) 344
(203) 345
(203) 354
(203) 355
(203) 485
(203) 489
(203) 557
(203) 569
(203) 587
(203) 588
(203) 594
(203) 628
(203) 664
(203) 693
(203) 717
(203) 810
(203) 817
(203) 870
(203) 900
(203) 914
(203) 939
(203) 956
(203) 957
(203) 960
(203) 970
(203) 971
(203) 992

Teleport Communications America
Carrier

Coverage Area
Counties: , New Haven, Fairfield, Litchfield
Cities: Guilford, New Haven, Wallingford, Newtown, Westport, Madison, Ridgefield, Old Greenwich, Fairfield, Wilton, Wolcott, New Canaan, Derby, Huntington, Seymour, Naugatuck, Meriden, Norwalk, Danbury, Bridgeport, Darien, Woodbury, Trumbull, Stamford, Waterbury, Cheshire, Branford, Milford

(203) 204
(203) 285
(203) 303
(203) 304
(203) 349
(203) 350
(203) 403
(203) 409
(203) 418
(203) 423
(203) 441
(203) 442
(203) 446
(203) 447
(203) 463
(203) 490
(203) 514
(203) 523
(203) 546
(203) 551
(203) 559
(203) 586
(203) 601
(203) 658
(203) 747
(203) 805
(203) 806
(203) 871
(203) 880
(203) 905
(203) 951
(203) 974

Southern New England Telephone Co.
Carrier

Coverage Area
Counties: , New Haven, Litchfield, Fairfield
Cities: Danbury, Westport, Bridgeport, Huntington, Norwalk, New Haven, Meriden, Waterbury, Madison, Cheshire, Stamford, Fairfield, Trumbull, Southbury, Woodbury, Wallingford, Newtown, Milford, Branford, Ridgefield, Guilford, Northford, Redding, Wilton, Old Greenwich, Darien, Naugatuck, Ansonia, New Canaan, Wolcott, Seymour

(203) 205
(203) 207
(203) 221
(203) 222
(203) 224
(203) 225
(203) 226
(203) 227
(203) 229
(203) 230
(203) 234
(203) 235
(203) 236
(203) 237
(203) 238
(203) 239
(203) 245
(203) 248
(203) 250
(203) 251
(203) 254
(203) 255
(203) 256
(203) 259
(203) 261
(203) 262
(203) 263
(203) 264
(203) 265
(203) 266
(203) 267
(203) 268
(203) 269
(203) 270
(203) 271
(203) 272
(203) 275
(203) 281
(203) 284
(203) 287
(203) 288
(203) 291
(203) 294
(203) 299
(203) 301
(203) 312
(203) 315
(203) 316
(203) 317
(203) 318
(203) 319
(203) 321
(203) 322
(203) 323
(203) 324
(203) 325
(203) 326
(203) 327
(203) 328
(203) 329
(203) 330
(203) 331
(203) 332
(203) 333
(203) 334
(203) 335
(203) 336
(203) 337
(203) 338
(203) 339
(203) 341
(203) 346
(203) 348
(203) 351
(203) 352
(203) 353
(203) 356
(203) 357
(203) 358
(203) 359
(203) 362
(203) 363
(203) 364
(203) 365
(203) 366
(203) 367
(203) 368
(203) 371
(203) 372
(203) 373
(203) 374
(203) 375
(203) 377
(203) 378
(203) 379
(203) 380
(203) 381
(203) 382
(203) 383
(203) 384
(203) 385
(203) 386
(203) 387
(203) 389
(203) 392
(203) 393
(203) 394
(203) 396
(203) 397
(203) 401
(203) 402
(203) 406
(203) 407
(203) 416
(203) 419
(203) 420
(203) 421
(203) 425
(203) 426
(203) 431
(203) 432
(203) 436
(203) 438
(203) 445
(203) 452
(203) 453
(203) 454
(203) 457
(203) 458
(203) 459
(203) 461
(203) 462
(203) 465
(203) 466
(203) 467
(203) 468
(203) 469
(203) 479
(203) 481
(203) 483
(203) 484
(203) 486
(203) 488
(203) 492
(203) 495
(203) 497
(203) 498
(203) 499
(203) 502
(203) 503
(203) 527
(203) 534
(203) 539
(203) 541
(203) 544
(203) 553
(203) 562
(203) 563
(203) 573
(203) 574
(203) 575
(203) 576
(203) 577
(203) 578
(203) 579
(203) 581
(203) 582
(203) 585
(203) 591
(203) 595
(203) 596
(203) 597
(203) 598
(203) 602
(203) 603
(203) 609
(203) 614
(203) 615
(203) 619
(203) 624
(203) 630
(203) 634
(203) 637
(203) 639
(203) 654
(203) 655
(203) 656
(203) 662
(203) 674
(203) 677
(203) 679
(203) 680
(203) 686
(203) 688
(203) 691
(203) 694
(203) 695
(203) 696
(203) 697
(203) 698
(203) 699
(203) 703
(203) 708
(203) 709
(203) 719
(203) 720
(203) 723
(203) 728
(203) 729
(203) 730
(203) 731
(203) 732
(203) 734
(203) 735
(203) 736
(203) 737
(203) 739
(203) 740
(203) 741
(203) 743
(203) 744
(203) 746
(203) 748
(203) 749
(203) 750
(203) 751
(203) 752
(203) 753
(203) 754
(203) 755
(203) 756
(203) 757
(203) 758
(203) 759
(203) 761
(203) 762
(203) 764
(203) 765
(203) 771
(203) 772
(203) 773
(203) 775
(203) 776
(203) 777
(203) 778
(203) 781
(203) 782
(203) 783
(203) 784
(203) 785
(203) 786
(203) 787
(203) 789
(203) 790
(203) 791
(203) 792
(203) 794
(203) 795
(203) 796
(203) 797
(203) 798
(203) 799
(203) 801
(203) 812
(203) 821
(203) 825
(203) 826
(203) 830
(203) 831
(203) 834
(203) 837
(203) 838
(203) 840
(203) 845
(203) 846
(203) 847
(203) 849
(203) 851
(203) 852
(203) 853
(203) 854
(203) 855
(203) 857
(203) 865
(203) 866
(203) 867
(203) 874
(203) 876
(203) 877
(203) 878
(203) 879
(203) 881
(203) 882
(203) 888
(203) 890
(203) 891
(203) 894
(203) 899
(203) 921
(203) 922
(203) 924
(203) 925
(203) 926
(203) 928
(203) 929
(203) 931
(203) 932
(203) 933
(203) 934
(203) 936
(203) 937
(203) 938
(203) 940
(203) 944
(203) 945
(203) 946
(203) 949
(203) 961
(203) 962
(203) 963
(203) 964
(203) 965
(203) 966
(203) 967
(203) 968
(203) 969
(203) 972
(203) 973
(203) 975
(203) 977
(203) 978
(203) 985
(203) 991

New Cingular Wireless PCS - DC
Carrier

Coverage Area
Counties: , New Haven
Cities: Waterbury, Bridgeport, Meriden, New Haven, Westport, Stamford, Derby, Trumbull, Danbury, Norwalk

(203) 206
(203) 212
(203) 213
(203) 214
(203) 215
(203) 216
(203) 217
(203) 218
(203) 219
(203) 260
(203) 274
(203) 305
(203) 343
(203) 400
(203) 414
(203) 415
(203) 417
(203) 430
(203) 444
(203) 451
(203) 482
(203) 500
(203) 506
(203) 518
(203) 522
(203) 524
(203) 525
(203) 540
(203) 554
(203) 556
(203) 558
(203) 560
(203) 592
(203) 631
(203) 640
(203) 645
(203) 710
(203) 722
(203) 770
(203) 788
(203) 804
(203) 807
(203) 819
(203) 824
(203) 832
(203) 873
(203) 895
(203) 918
(203) 947
(203) 979
(203) 988

Comcast Phone Of Connecticut
Carrier

Coverage Area
Counties: , New Haven
Cities: Branford, New Haven

(203) 208
(203) 433
(203) 535
(203) 823

Cellco Partnership DBA Verizon Wireless
Carrier

Coverage Area
Counties: , New Haven
Cities: Bridgeport, Waterbury, Derby, Danbury, Norwalk, Stamford, New Haven

(203) 209
(203) 228
(203) 231
(203) 232
(203) 233
(203) 240
(203) 241
(203) 246
(203) 247
(203) 249
(203) 253
(203) 257
(203) 258
(203) 273
(203) 308
(203) 313
(203) 314
(203) 376
(203) 450
(203) 456
(203) 464
(203) 470
(203) 494
(203) 501
(203) 505
(203) 520
(203) 521
(203) 530
(203) 536
(203) 561
(203) 584
(203) 605
(203) 623
(203) 641
(203) 644
(203) 671
(203) 707
(203) 726
(203) 733
(203) 767
(203) 803
(203) 814
(203) 815
(203) 836
(203) 856
(203) 858
(203) 885
(203) 893
(203) 906
(203) 909
(203) 910
(203) 912
(203) 913
(203) 915
(203) 917
(203) 927
(203) 980
(203) 984
(203) 993

Sprint Spectrum
Carrier

Coverage Area
Counties: , New Haven
Cities: Stamford, New Haven, Bridgeport, Danbury, Greenwich, Waterbury, Norwalk, Meriden

(203) 223
(203) 309
(203) 395
(203) 410
(203) 424
(203) 449
(203) 496
(203) 507
(203) 509
(203) 510
(203) 515
(203) 519
(203) 526
(203) 537
(203) 545
(203) 565
(203) 572
(203) 589
(203) 613
(203) 617
(203) 627
(203) 650
(203) 667
(203) 668
(203) 675
(203) 676
(203) 727
(203) 800
(203) 820
(203) 829
(203) 864
(203) 887
(203) 901
(203) 904
(203) 942
(203) 943
(203) 948
(203) 952
(203) 953
(203) 981
(203) 982
(203) 994
(203) 996
(203) 999

Omnipoint Communications
Carrier

Coverage Area
Counties: , New Haven
Cities: Bridgeport, Derby, Danbury, Norwalk, New Haven, Stamford, Meriden, Waterbury

(203) 243
(203) 278
(203) 290
(203) 300
(203) 434
(203) 435
(203) 512
(203) 543
(203) 550
(203) 570
(203) 606
(203) 685
(203) 690
(203) 715
(203) 768
(203) 808
(203) 809
(203) 892
(203) 908
(203) 919
(203) 997

Brooks Fiber Communications Of Connecticut Inc-ct
Carrier

Coverage Area
Counties: , Fairfield, New Haven
Cities: Old Greenwich, Darien, Stamford, Bridgeport, Danbury, Fairfield, New Canaan, Waterbury, Meriden, Greenwich, Norwalk, New Haven

(203) 277
(203) 280
(203) 293
(203) 295
(203) 296
(203) 297
(203) 307
(203) 310
(203) 320
(203) 369
(203) 388
(203) 391
(203) 399
(203) 428
(203) 429
(203) 437
(203) 443
(203) 448
(203) 455
(203) 480
(203) 566
(203) 607
(203) 620
(203) 636
(203) 642
(203) 705
(203) 742
(203) 818
(203) 827
(203) 844
(203) 859
(203) 897
(203) 898
(203) 920
(203) 923
(203) 955
(203) 986
(203) 990
(203) 995

Conversent Communications Of Connecticut
Carrier

Coverage Area
Counties: , New Haven
Cities: Norwalk, Bridgeport, New Haven, Greenwich

(203) 286
(203) 610
(203) 848
(203) 983

Teleport Communications Group - NY
Carrier

Coverage Area
Cities: Greenwich

(203) 302
(203) 813

Choice One Communications
Carrier

Coverage Area
Counties: , New Haven
Cities: Milford, Huntington, Bridgeport, Naugatuck, Branford, Cheshire, Stamford, Guilford, Wallingford, Madison, Waterbury, Meriden, New Haven, Derby

(203) 306
(203) 538
(203) 549
(203) 632
(203) 643
(203) 651
(203) 724
(203) 738
(203) 774
(203) 779
(203) 841
(203) 886
(203) 907
(203) 954

Level 3 Communications
Carrier

Coverage Area
Counties: , New Haven
Cities: Greenwich, New Haven, Redding, Stamford, Waterbury, Guilford, Bridgeport, Trumbull, Wolcott, Danbury, Fairfield, Norwalk

(203) 347
(203) 361
(203) 493
(203) 517
(203) 528
(203) 533
(203) 583
(203) 590
(203) 633
(203) 635
(203) 648
(203) 666
(203) 687
(203) 763
(203) 883
(203) 903
(203) 916
(203) 987
(203) 989
(203) 998

Metro PCS
Carrier

Coverage Area
Counties: , New Haven
Cities: Bridgeport, Meriden, New Haven, Waterbury

(203) 360
(203) 600
(203) 684
(203) 802
(203) 850

American Messaging (am)
Carrier

Coverage Area
Counties: New Haven,
Cities: New Haven, Waterbury

(203) 370
(203) 412
(203) 657
(203) 670
(203) 766

Broadwing Communications
Carrier

Coverage Area
Counties: New Haven,
Cities: New Haven, Stamford, Wolcott

(203) 404
(203) 548
(203) 604
(203) 704

Paetec Communications
Carrier

Coverage Area
Counties: Litchfield, , Fairfield, New Haven
Cities: Woodbury, Huntington, Waterbury, Meriden, Darien, Trumbull, Milford, Cheshire, Stamford, Fairfield, New Haven, Wallingford, Bridgeport, Danbury

(203) 405
(203) 567
(203) 568
(203) 608
(203) 621
(203) 638
(203) 647
(203) 649
(203) 652
(203) 653
(203) 659
(203) 663
(203) 665
(203) 672
(203) 678
(203) 682
(203) 683
(203) 702

AT&T Local
Carrier

Coverage Area
Counties: , New Haven, Fairfield
Cities: Redding, Danbury, New Haven, Wilton, Greenwich, Stamford, Westport, Meriden, Bridgeport, Waterbury, Norwalk, Darien

(203) 408
(203) 460
(203) 513
(203) 529
(203) 542
(203) 564
(203) 571
(203) 599
(203) 626
(203) 673
(203) 689
(203) 701
(203) 721
(203) 822
(203) 843
(203) 868
(203) 872
(203) 875

Paetec Communications - NY
Carrier

Coverage Area
Cities: Greenwich

(203) 413

Verizon New York
Carrier

Coverage Area
Cities: Greenwich

(203) 422
(203) 531
(203) 532
(203) 552
(203) 618
(203) 622
(203) 625
(203) 629
(203) 661
(203) 681
(203) 769
(203) 861
(203) 862
(203) 863
(203) 869

Mcimetro Access Transmission Services LLC
Carrier

Coverage Area
Cities: Meriden

(203) 427

Cox Connecticut Telecom
Carrier

Coverage Area
Cities: Cheshire, Meriden, Waterbury

(203) 439
(203) 440
(203) 725

Global Crossing Local Services-ct
Carrier

Coverage Area
Counties: , Fairfield, New Haven
Cities: Stamford, Derby, Bridgeport, Danbury, Branford, Greenwich, Darien, Fairfield, Huntington, Milford, Naugatuck, Cheshire, Wallingford, Trumbull, Seymour, Guilford, New Haven, Madison, Meriden

(203) 487
(203) 516
(203) 612
(203) 616
(203) 646
(203) 660
(203) 669
(203) 692
(203) 712
(203) 713
(203) 714
(203) 716
(203) 718
(203) 793
(203) 816
(203) 828
(203) 842
(203) 884
(203) 889
(203) 896
(203) 930
(203) 935

Ctc Communications Corp.
Carrier

Coverage Area
Counties: , New Haven
Cities: Stamford, New Haven, Waterbury

(203) 504
(203) 508
(203) 706

Global Naps
Carrier

Coverage Area
Counties: , New Haven
Cities: Stamford, New Haven

(203) 547
(203) 902

Peerless Network Of Connecticut
Carrier

Coverage Area
Cities: Greenwich, Bridgeport, Waterbury

(203) 580
(203) 760
(203) 780

Sbc Internet Services
Carrier

Coverage Area
Counties: New Haven
Cities: New Haven

(203) 745
The 203 area code is located in New Haven, Connecticut including Darien, Guilford and was originally put into service on February 4th 1994. Find whose number this is.

Recently Reported Numbers

(203) 806-7409Unknown

Message started before the call was even answered; all that could be made out was "PRESS 9 TO OPT-OUT" to which I would never do such a foolish thing as press any key other than that which ends a the call.

(203) 344-7751Unknown

I got a called today too. Saying I need to get a lawyer. I got case filed under my name

(203) 902-0795Unknown

We've been getting calls from this number and several other CT numbers with what seems like the same woman's voice. I think she says she's from OBM. Think that's Oxford Benefit Managers, part of United Healthcare. All of the numbers come up on a Yahoo search as Medicare scam.

(203) 590-8081Neutral

Numerous calls my carrier stops it as Robocall still annoying!

(203) 379-6237Unknown

Any ideas who calls from this number?

(203) 909-9016Unknown

They called my cell today and did not leave a message.

(203) 433-3461Unknown

I heard the phone ring and saw the number, so I let the phone answer it . A gal said: “Hello? Are you there? Ok, sorry I couldn’t help you today.” At first, there was a Monet of silence and I could her that this was a room full of people making calls.

(203) 433-3461Unknown

P.S. I’m so VERY glad to see (800notes). Where have you been ? We need you !

(203) 433-3461Unknown

Quote:a Monet of silence I have never heard of that painting. Is it very valuable?

(203) 632-9161Unknown

Called 2x in last 2 days. No message left for me. Unsure.

Recently Searched Numbers

No additional information reported for these searched numbers. Received a call from any phone number listed below? Please consider helping the community by reporting your experience.

203-475-3465
ReportUNKNOWN
203-971-5807
ReportCablevision Lightpath
203-345-2629
ReportCablevision Lightpath
203-641-4055
ReportCellco Partnership DBA Verizon Wireless
203-452-2123
ReportSouthern New England Telephone Co.
203-423-5921
ReportTeleport Communications America
203-173-3066
ReportUNKNOWN
203-925-7903
ReportSouthern New England Telephone Co.
203-219-8677
ReportNew Cingular Wireless PCS - DC
203-657-4031
ReportAmerican Messaging (am)
203-646-6897
ReportGlobal Crossing Local Services-ct
203-840-2256
ReportSouthern New England Telephone Co.
203-306-9989
ReportChoice One Communications
203-444-2880
ReportNew Cingular Wireless PCS - DC
203-509-4256
ReportSprint Spectrum
203-455-3105
ReportBrooks Fiber Communications Of Connecticut Inc-ct
203-148-8674
ReportUNKNOWN
203-562-9540
ReportSouthern New England Telephone Co.
203-972-6416
ReportSouthern New England Telephone Co.

Most searched numbers

Cell
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203-909-1237First seen 2021-10-11203-481-7299First seen 2014-07-31
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Cities With coverage

CITY LIST
Ansonia
Branford
Bridgeport
Cheshire
Danbury
Darien
Derby
Fairfield
Greenwich
Guilford
Huntington
Madison
Meriden
Milford
Naugatuck
New Canaan
New Haven
Newtown
Northford
Norwalk
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Waterbury
Westport
Wilton
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