The country code and area code of Sistan-Baluchestan, Iran is 98, (0)541.

The population of Tang-e Sistan is 136.

Fars. Tehran. Isfahan. Central. East Azarbaijan. West Azarbaijan. Razavi Khorasan. North Khorasan. South Khorasan. Hormozgan. Bushehr. Yazd. Kurdistan. Kohgiluyeh Boyer Ahmad. Sistan and Baluchestan. Khuzestan. Gilan. Mazandaran. Alborz. Hamedan. Lorestan. Kerman. Qom. Chahar Mahal and Bakhtiari. Zanjan. Qazvin. Semnan. Kermanshah.

It is unclear what is being asked here.

If what is meant to is to ask about the COUNTRIES (note the "r") to the east of Iran, those would be, from north to south: Turkmenistan, Afghanistan, and Pakistan.

If what is meant is to ask what are the easternmost counties (shahrestan in Farsi) of Iran, they are from north to south: Sarakhs, Torbat-e-Jam, Taybad, Khaf (all in Razavi Khorasan Province), Zirkuh, Darmis, Sarbisheh, Nehbandan (all in South Khorasan Province), Zabol, Zahedan, Khash, Saravan, Sarbaz, and Chahbahar (all in Sistan and Baluchestan Province).

Hassni tribe. Hassani tribe is entered in the Gazetteers of Balochistan published in Urdu virsion and the hassani tribe has been mentioned in Chapter of Loralai District (BARIKHAN) it has been mentioned that Hassani was a powerfull Baloch tribe in Sistan. Hassni tribe. Hassani tribe is entered in the Gazetteers of Balochistan published in Urdu virsion and the hassani tribe has been mentioned in Chapter of Loralai District (BARIKHAN) it has been mentioned that Hassani was a powerfull Baloch tribe in Sistan.