Area code
Area code 443 — Baltimore, MD
Maryland · in service since June 1, 1997
Area code 443 covers Baltimore, MD. It is an overlay: 410, 667 serve the same area, so neighbors can have different area codes.
Local time in Baltimore
Spam reports from Sep 23 – Oct 22, 2026
High #105 of 461 codes
704 FTC complaints
Consumer reports, not verified by the FTC.
See the reports- Time zoneEastern Time
- Local calls10 digits
- Prefixes800 assigned
- Runs out~1Q 2036
- Unwanted call?Block & report
Spam call reports about 443 numbers
Complaints by week
Sep 11 – Oct 22, 2026Show as table
| Week starting | Complaints |
|---|---|
| Sep 7 (3 days) | 26 |
| Sep 14 | 125 |
| Sep 21 | 132 |
| Sep 28 | 135 |
| Oct 5 | 183 |
| Oct 12 | 186 |
| Oct 19 (4 days) | 116 |
Compared with all codes
- Robocalls
- 75%all codes 75%
- Callers with the same code
- 32%all codes 35%
- Rank by complaints
- #105of 461 · top quarter
- FCC complaints, Oct 2025 – Sep 2026
- 12819 about text messages
What the calls were about
Sep 11 – Oct 22, 2026
| Subject | Complaints | |
|---|---|---|
| Reducing your debt (credit cards, mortgage, student loans) | 148 16% | |
| Calls pretending to be government, businesses, or family and friends | 105 12% | |
| Dropped call or no message | 78 9% | |
| Home improvement & cleaning | 46 5% | |
| Medical & prescriptions | 15 2% | |
| Warranties & protection plans | 9 1% |
Where the people who complained live
Sep 11 – Oct 22, 2026
| State | Complaints | |
|---|---|---|
| Maryland | 474 52% | |
| California | 34 4% | |
| Florida | 33 4% | |
| Texas | 32 4% | |
| Pennsylvania | 25 3% |
October 2026 (partial) report · most reported
Consumer reports, not verified by the FTC · source
Source: FTC Do Not Call complaints created Sep 11 – Oct 22, 2026. They are reported by consumers and are not verified by the FTC; caller ID can be spoofed (how we count).
Source: FCC Consumer Complaints data, unwanted calls filed Oct 1, 2025 – Sep 30, 2026, by caller ID; not verified by the FCC.
Area code 443 location and prefixes
| Exchange (NANPA) | Place | County | Prefixes |
|---|---|---|---|
| BALTIMORE | Baltimore | Baltimore city | 186 |
| ANNAPOLIS | Annapolis | Anne Arundel County | 39 |
| TOWSON | Towson | Baltimore County | 33 |
| COLUMBIA | Columbia | Howard County | 31 |
| GLENBURNIE | Glen Burnie | Anne Arundel County | 26 |
| CATONSVL | Catonsville | Baltimore County | 22 |
| PIKESVILLE | Pikesville | Baltimore County | 21 |
| SALISBURY | Salisbury | Wicomico County | 20 |
| BEL AIR | Bel Air | Allegany County | 19 |
| ABERDEEN | Aberdeen | Harford County | 15 |
Plus 71 smaller exchange areas.
Source: NANPA CO codes of Oct 23, 2026; places: U.S. Census Bureau, matched by DialWhere (how).
NANPA record
- Location
- Maryland
- Assigned by NANPA
- June 21, 1996
- Local dialing
- 10 digits (NANPA: 10D)
- NANPA planning letters
- PL-427, PL-299, PL-266
Source: NANPA, NPA database of Oct 24, 2026.
Is 443 running out of numbers?
Previous forecast (October 2025): 2035, moved later by 1 year.
Forecast exhaust year by edition
Source: NANPA NRUF forecast, April 2026 edition.
Who holds 443 prefixes
The five largest of 27 original holders
As listed by NANPA, not today’s carrier.
| Holder (as listed) | Prefixes | |
|---|---|---|
| Paetec Itel, LLC | 153 19% | |
| Verizon Wireless | 121 15% | |
| Omnipoint Communications Cap Operations, LLC | 94 12% | |
| New Cingular Wireless PCS, LLC | 71 9% | |
| Level 3 Communications, LLC | 69 9% |
Source: NANPA CO codes of Oct 23, 2026.
Questions about area code 443
What area code is 443?
A Maryland area code, in service since June 1, 1997.
Where is 443 area code, and what time zone is it in?
Baltimore, MD; Eastern Time.
Why am I getting spam calls from 443?
704 FTC complaints from Sep 23 – Oct 22, 2026, most often about debt reduction (not verified by the FTC; caller ID can be spoofed).
Will 443 get a new area code?
NANPA forecasts exhaust in 1Q 2036; no relief planning listed.