District of Iraq
The West Syriac or Syriac Orthodox communities in Iraq had three major centers that played their own role in preserving the Syriac heritage. These centers were Tikrit where the Maphrian of the East resided until the end of 12th century, Mosul, and Dayro Mor Mattai. This is a partial list of the centers and their towns and villages that were under the jurisdiction of the Maphrianate of the East. I only included the communitties in current day Iraq
Alqush: A town located 30 km north of Mosul
'Anah: a town in Iraq, west of the Euphrates and southeast of Dayr al-Zur.
'Aqr: a citadel two days journey north of Mosul. It is known as 'Aqr al-Humaydiyya.
Aqula: Near Kufa in southern Iraq; no longer in existence.
Arbil or Beth Nuhadra: a town about two day journey southeast of Mosul.
Bahzani
Bajabbara: a village north of Mosul on the Khuser Creek, ruined in the middle of the thirteenth century.
Balad: an ancient town above Mosul on the western bank of the Tigris, ruined in the fourteenth century. It is now called Eski Mosul.
Baghdad
Bahrain
Bänuhadrä: A town north of Mosul, now called Duhuk.
Bani Taghlib
Baremmän, Beth Remmän (Barumma): a village on the Tigris, now in ruins, five hours journey northeast of Mosul.
Bartille: a large village in the province of Nineveh, north of Mosul.
Barumana (or Rumana): an ancient town in Karkar (in Iraq).
Basekhrä: a small village east of Bartelli (in Iraq).
Ba'shiqa: a village north of Mosul.
Beth Arbaya: a small territory between Nisibin and Sinjar.
Beth Arsham: an extinct town south of Baghdad, near Ctesiphon. Its exact location is unknown.
Beth Khudayda (Qaraqosh): a large village in the province of Nineveh, north of Mosul
Beth Saida
Beth Shähäq: an ancient town in the province of Mosul.
Beth Taklitho
Beth Takshbar
Beth Waziq
Gumal or Marga (Marj): a place northeast of Mosul, formerly a big province.
Hassasa: an ancient village in southern Iraq, near Qasr Ibn Hubayra, in the vicinity of al-Kufa.
Herat (Afganistan)
Hira: an ancient city, three miles from Kufa and east of al-Najaf.
Karamlis
Karma
Kurum
Ma'ltha
Mashhad Kuhayl: Kuhayl was a big city on the Tigris between the two Zabs, above Takrit, going southwards but it doesn't exist anymore. Kuhayl was the birthplace of the Syriac learned man Moses Bar Kepha (d. 903).
Narsibad: perhaps Naryan or al-Nars, or possibly another location, a territory between al-Kufa and Wasit in southern Iraq.
Mosul and Nineveh
Peroz-Shapur or Fishkhabor
Qronta: an ancient town on the east bank of the Tigris, near the Great Zab.
Seleucia-Ctesiphon: two connected cities. They were the capital of the Sassanids, situated about six hours journey south of Baghdad. Both these cities were destroyed at the beginning of the Arab conquest. Near their site is the present village of Salman Pak.
Sinjar: a town situated at the foot of the Sinjar mountain, three days' journey from Mosul.
Shahrzur
Tahal: an ancient village in the province of Bajermi (Beth Garmai), near Kirkuk, Iraq.
Takrit: an ancient city west of the Tigris, between Baghdad and Mosul. In the golden age of the Syriacs, it was the seat of the Maphryonos of the East from 628 until the end of the twelfth century.
Terhan