Julfar was a major port town of the Persian Gulf during the fourteenth and fifteenth centuries AD. A possession of the Hormuzi empire, it was a lucrative source of taxes and pearls, and a port of trade for northern Oman, tapping into maritime trading networks connecting the Middle East with Africa, India, Southeast Asia and China. The site is found north of modern Ras Al-Khaimah, UAE. Julfar Al-Nudud was previously considered to be a late suburb of an urban core, Julfar Al-Mataf, and is located on a creek opposite the latter. However, excavations in 2010 indicated that Al-Nudud was part of the original urban core, which had grown up on either side of the creek. Moreover, re-examination of previous work in Al-Mataf, where a large mosque and fortification were excavated (by British and French teams), shows that the two areas followed different trajectories. Significant occupation in Al-Nudud and southern Al-Mataf (revealed by previous Japanese excavations) ended before the start of the sixteenth century, while use of the mosque and fort in central Al-Mataf continued into the seventeenth century, albeit discontinuously. A revised concordance of the phases derived from the work of various archaeological teams is therefore proposed.