Baltimore Inbound International Dialing

Procedure to Dial Baltimore, MD from Any Country

Follow this basic dialing procedure to place an international long-distance call from any country worldwide to a landline or mobile phone number in Baltimore, Maryland.

The procedure outlined below is for direct international dialing from a landline or mobile phone in the home or office.

Additional or different dialing steps may be required when calling Baltimore using calling card or VoIP service.

1. Dial international access code / IDD:   ddd 

Dial your country's international access code (aka international direct dial code or IDD) to initiate a phone call to Baltimore.

Lookup your international access code here.

Note that some mobile operators do not require dialing an IDD and/or allow use of substitute characters (such as '+') in lieu of dialing an IDD. As well, in many cases you don't dial an IDD when using a calling card or VoIP service.

2. Dial United States country code: + 1 

Dial country code +1 to reach any location in United States, including Baltimore. Country codes are also known as ISDs or international subscriber dialing codes.

If your Baltimore phone number starts with a ' 1 ' - e.g., 1 410 224 1800, don't add a second ' 1 '. Dial just a single ' 1 ' after the international access code.

3. Dial a 10-digit Baltimore phone number

All Baltimore phone numbers are 10-digits long with two parts:

a. Dial a 3-digit Baltimore area code:  aaa 

b. Dial a 7-digit local subscriber number: nnn nnnn

The main Baltimore area codes are 410, 443 - more Baltimore area codes

Lookup a Baltimore phone number

Steps to Dial Baltimore from a Specific Country

Follow the links below for country-specific dialing instructions for calling Baltimore landline and mobile phones. These pages include originating country access codes and other information.