Vorwahlbereich B
| Nummer | Name Land | Ländervorwahl | Zeitverschiebung |
| 1 | Bahamas | 001242 | -6h |
| 2 | Bahrain | 00973 | +2h |
| 3 | Bangladesch | 00880 | +4h |
| 4 | Barbados | 001246 | -5h |
| 5 | Belarus | 00375 | +/0h |
| 6 | Belgien | 0032 | +/-0 |
| 7 | Belize | 00501 | -7h |
| 8 | Benin | 00229 | +/-0h |
| 9 | Bermuda | 001441 | -5h |
| 10 | Bhutan | 00975 | +5h |
| 11 | Bolivien | 00591 | -5h |
| 12 | Bosnien-Herzegowina | 00387 | +/-0h |
| 13 | Botswana | 00267 | +1 |
| 14 | Brasilien | 0055 | -5h |
| 15 | Brunei | 00673 | +8h |
| 16 | Bulgarien | 00359 | +1h |
| 17 | Burkina Faso | 00226 | -1h |
| 18 | Burundi | 00257 | +1h |