|Easton's Bible Dictionary|
Blast, a city of Moab which was occupied by the Amorites (Numbers 21:30).
Int. Standard Bible Encyclopedia
no'-fa (nophach; the Septuagint does not transliterate): A city mentioned only in Numbers 21:30 (see NOBAH). Septuagint reads: kai hai gunaikes eti prosexekausan pur epi Moab, "and the women besides (yet) kindled a fire at (against) Moab." The text has evidently suffered corruption.
Nophah (1 Occurrence)
Numbers 21:30 We have shot at them. Heshbon has perished even to Dibon. We have laid waste even to Nophah, Which reaches to Medeba." (WEB KJV JPS ASV BBE DBY WBS YLT NAS NIV)