Telephone lines

Footnotes:

1. Bulgarian Telecommunications Company Ltd.
2. Communications Regulation Commission.
3. Incl. ISDN lines.
4. Number of subscribers of the incumbent operator and the alternative operators, including the ISDN lines.
5. Data as of 31.12.2009. According to the revised definition the number of ISDN subscriptions is presented as voice channel equivalents. Public payphones are included.
6. Communications Regulation Commission
7. ITU estimate.