Texas The main article for this category is N11 code. Pages in category "N11 codes" The following 12 pages are in this category, out of 12 total. This list may not reflect recent changes. 0–9 5-1-1 6-1-1 8-1-1 211 (telephone number) 311 (telephone number) 411 (telephone number) 911 (emergency telephone number)A Abbreviated dialingE Emergency response system Enhanced 911N N11 code Next Generation 9-1-1