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Area code 410

Area code 410 serves Maryland, including Baltimore, Towson and Annapolis (Eastern time). It has been in service since October 6, 1991 and shares its area with 443 and 667.

Numbers starting with 410 drew 1,643 reports to the FTC from Aug 14, 2026 to Nov 11, 2026 and 648 complaints to the FCC since November 2023. The number on your screen can be faked, so a 410 number proves nothing about where a call came from.

Location
Maryland(washington-Arlington-Alexandria, DC-VA-MD-WV Metroploitan Statistical Area) and Baltimore-Columbia-Towson, MD Metropolitan Statistical Area
Time zone
Eastern
In service since
October 6, 1991Created from 301
Overlay
Same area as 443, 667
Local calls
Dial 10 digitsArea code needed, even next door
Exchanges in use
783 of 792held by 27 carriers
Projected to run out
4Q 2036NANPA forecast 2026.2

Complaints about 410 numbers

Reports where the number on the consumer's caller ID (or, for the FCC, the number the caller asked them to call back) starts with 410. These are counts of what people reported; the agencies do not verify them.

FTC reports, Aug 14, 2026 to Nov 11, 2026

1,643

FCC complaints since November 2023

648

Different 410 numbers reported

1,899

FCC complaints naming a 410 number, by month

November 2023 to October 2026. Source: FCC Consumer Complaints Data.

Show as a table
MonthComplaints
November 202319
December 202321
January 202423
February 20245
March 202418
April 202413
May 202414
June 202436
July 202424
August 202421
September 202413
October 202424
November 202433
December 202410
January 202525
February 202510
March 202514
April 202516
May 202524
June 202514
July 202525
August 202517
September 202510
October 20252
November 20259
December 202520
January 202616
February 202615
March 202636
April 202623
May 202620
June 202618
July 202616
August 202610
September 202610
October 202618

What people said 410 calls were about

Subjects picked in FTC reports, August 14, 2026 to November 11, 2026. 1,176 of 1,643 reports were robocalls.

Show as a table
SubjectReports
Other667
Dropped call or no message387
Reducing your debt (credit cards, mortgage, student loans)140
Calls pretending to be government, businesses, or family and friends105
Medical and prescriptions89
Home improvement and cleaning59

Most reported 410 numbers

Numbers with at least five reports from three or more places in the last twelve months. Many of them are likely spoofed.

Places served by 410

NANPA lists 102 rate centers for 410. A rate center is the town or district a block of numbers is tied to for billing; sorted here by how many exchanges each holds.
  • Baltimore189
  • Towson53
  • Annapolis36
  • Catonsville35
  • Glen Burnie29
  • Salisbury24
  • Waterloo 23623
  • Columbia20
  • Elkridge20
  • Pikesville19
  • Severna Park18
  • Cockeysville16
  • Ellicott City16
  • Fork16
  • Easton14
  • Parkville14
  • Woodlawn12
  • Arbutus10
  • Bel Air10
  • Essex10
  • Severn9
  • Edgewood8
  • Westminster8
  • Elkton7
Show all 102 rate centers

Ocean City, Reisterstown, Odenton, Prince Frederick, Sykesville, Aberdeen, Armiger-Gibson Island, Berlin, Brooklyn Park Linthicum, Dundalk, Fallston, Randallstown, Cambridge, Chestertown, Solomons, Centreville, Chase, Crofton, Sparrows Point, West River, Churchville, Havre De Grace, Jarrettsville, Millersville, North Beach, North East, Perryville, Princess Anne, Queenstown, Rising Sun, Sherwood Forest, Sparks Glencoe, Stevensville, Trappe, Waterloo 238, Bishopville, Cardiff, Cecilton, Chesapeake City, Church Hill, Crisfield, Darlington, Deal Island, Delmar, Denton, Federalsburg, Galena, Glenwood, Greensboro, Hampstead, Hillsboro, Hurlock, Marion, Millington, Nanticoke, New Windsor, Oxford, Parkton, Pocomoke, Port Deposit, Preston, Ridgely, Rock Hall, Saint Michaels, Sharptown, Silver Run, Smith Island, Snow Hill, Still Pond, Sudlersville, Taneytown, Tilghman, Union Bridge, Vienna, Warwick, Willards, Wingate, Worthington.

Phone companies holding 410 exchanges

Each exchange (the three digits after the area code) is assigned to one carrier. 48% of these exchanges are pooled: their numbers are handed out in blocks of 1,000 to other carriers, so the holder below is not always the company serving a given number.

Exchanges held, top 8 of 27 carriers

NANPA central office code assignments, file of November 11, 2026.

Show as a table
Carrier (legal name)Exchanges
Verizon Maryland, Inc.507
Cellco Partnership dba Verizon Wireless - MD53
New Cingular Wireless PCS, LLC - DC51
Mcimetro Access Transmission Services LLC - MD45
Spok, Inc.28
Omnipoint Communications Cap Operations, LLC22
Teleport Communications America, LLC - MD15
Paetec Itel, LLC12

When today's 410 exchanges were assigned

Exchanges still assigned, by year of assignment. Exchanges returned since are not counted.

Show as a table
YearExchanges
20012
20024
20032
20045
20058
20064
20071
20082
20092
20102
20118
20121
20151
20191
20201
20232

Check a 410 number

A check shows the carrier and rate center of the number's exchange and every FTC and FCC report about that exact number. Why the number on screen can be fake.

Other area codes in Maryland

NANPA area code database and central office code file of November 11, 2026; FCC complaints November 1, 2023 to November 11, 2026; FTC reports August 14, 2026 to November 11, 2026. How the data is used.

Official sources (7)Show