Muslim Mindanao Autonomy Act No. 106 “An Act creating the Municipality of Lumbaca-Unayan in the Province of Lanao del Sur, appropriating funds thereof, and for other purposes” issued on November 22, 2000 created the new municipality Lumbaca-Unayan and transferred to it nine (9) barangays from the municipality of Lumbatan, Lanao del Sur, ARMM.

In addition, the following updates on the Philippine Standard Geographic Code were made during the period October to December 2005:

1. Transferred the following barangays from the municipality of Lumbatan to the newly created municipality of Lumbaca-Unayan in Lanao del Sur, ARMM:
   • Bangon
   • Beta
   • Calalon
   • Calipapa
   • Dilausan
   • Dimpaok
   • Lumbaca-Dilausan
   • Oriental Beta
   • Tringun
     
     
2. The following barangays were created:
   • Bgy. Lumbac-Dimarao , Maguing, Lanao del Sur
   • Bgy. Pindolonan , Maguing, Lanao del Sur
   • Bgy. Crossing , Kitcharao, Agusan del Norte
   • Bgy. Songkoy , Kitcharao, Agusan del Norte
     
     
3. The merging of Barangays Calabuso South and Calabuso North into one barangay to be called Barangay Calabuso, in Tagaytay City per City Resolution No. 96-540 dated Nov. 8, 1996 was put on hold pending the conduct of plebiscite.

As of December 31, 2005, the Philippines had 17 regions, 79 provinces, 117 cities, 1,501 municipalities and 41,980 barangays.

As the largest island in the country, Luzon now has 8 regions, 37 provinces, 57 cities, 690 municipalities and 20,056 barangays. Visayas has 3 regions, 17 provinces, 33 cities, 399 municipalities and 11,875 barangays while Mindanao has 6 regions, 25 provinces, 27 cities, 412 municipalities and 10,049 barangays.

Number of Regions and Local Government Units (LGUs), by Island Group
(As of December 31, 2005 and September 30, 2005)

Source: National Barangay Operations Office of the
Department of Interior and Local Government (NBOO/DILG)

PSGC Interactive Database