Collins Chinese Dictionary Plus (3rd edition), 2011:
phone number n [c] 电(電)话(話)号(號)码(碼) diànhuà hàomǎ [个 gè]
在这些条目还发现'phone number':
在英文解释里:
0 - 911 - area code - callback number - contact number - extension - listed - mob - redial - toll free - toll-free number - unlisted - zero