Ellicott City, Maryland Area Codes & Phone Number Distribution

Estimated Number of Assigned Phone Numbers in Ellicott City, Maryland

206,000

In Ellicott City, Maryland, wireless numbers account for 10.7% of assigned numbers, below the statewide average of 37.2%. Ellicott City's wireline and VoIP share is 21.0 percentage points higher than the statewide average. Compared with the state overall, Ellicott City has a more concentrated wireline and VoIP assignment mix. Ellicott City is served by 3 area codes in an overlay area, meaning multiple area codes cover the same geographic region.

Area Codes Used by Ellicott City, Maryland

410 443 667

Estimated Service-Type Mix of Assigned Phone Numbers in Ellicott City, Maryland

Total assigned 206,000

Wireline and VoIP

150,000 assigned numbers

72.82%

Other / Unclassified

34,000 assigned numbers

16.50%

Wireless

22,000 assigned numbers

10.68%

Estimated Share of Wireless Numbers Originally Assigned to Each Carrier in Ellicott City, Maryland

Estimated assigned wireless phone numbers: 22,000

Numbers may later be ported to another carrier, but this chart reflects original number assignment, not current subscriber share.

T-Mobile 13,000 (59.09%)

AT&T Wireless 9,000 (40.91%)

Estimated Share of Wireline and VoIP Numbers Originally Assigned to Each Carrier in Ellicott City, Maryland

Estimated assigned wireline and VoIP phone numbers: 150,000

VERIZON MARYLAND, INC. 71,000 (47.33%)

Onvoy 19,000 (12.67%)

Bandwidth 16,000 (10.67%)

Lumen 9,000 (6.00%)

YMAX COMMUNICATIONS CORP. - MD 8,000 (5.33%)

Spectrum 6,000 (4.00%)

Comcast Business 5,000 (3.33%)

Peerless Network 5,000 (3.33%)

MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 2,000 (1.33%)

PAETEC ITEL, LLC 2,000 (1.33%)

Vonage 2,000 (1.33%)

BALTIMORE-WASHINGTON TELEPHONE (BWT) 1,000 (0.67%)

Other / Unclassified Assigned Numbering in Ellicott City, Maryland

Estimated assigned other or unclassified phone numbers: 34,000

CORE COMMUNICATIONS, INC.- MD 10,000 (29.41%)

GLOBAL NAPS SOUTH, INC. - MD 10,000 (29.41%)

SPOK, INC. 10,000 (29.41%)

IP HORIZON LLC 2,000 (5.88%)

BARR TELL USA, INC. 1,000 (2.94%)

VDL, INC. DBA GLOBAL TELECOM BROKERS - MD 1,000 (2.94%)

How These Figures Were Built

These figures are estimates based on public phone-number assignment records. They are meant to show the likely mix of assigned phone numbers associated with Ellicott City, Maryland, not live customer counts.

Some providers may have assigned phone numbers tied to this locality even if they do not actively market or sell service locally. These figures reflect public number-assignment records, not confirmed local service availability.

They also do not reflect number portability at the individual phone-number level, so some numbers may now be used on a different network or by a different provider than the original assignment records suggest.