Australia Navy keeps eyes on the two Iran warships in Pacific.

According to information published by ABC on January 3, 2022, an Australian Defence spokesperson confirmed that the Iranian vessels, IRIS Dena and IRINS Makran had been monitored by the Navy.
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AgustaBell 212ASW, Sikorsky RH-53D, Sikorsky ASH-3D Sea Kings and one second AgustaBell 212ASW on the IRINS Makran. (Picture source: marinepress)

Makran is the first and only forward base ship of the Islamic Republic of Iran Navy, in service with its Southern Fleet since 2021 and named after a coastal region in southeastern Iran.  A former crude oil tanker converted into a warship, she was known with the tentative title Khalij-e Fars before her name being changed to the current.

The ship was launched on 10 September 2009 at the Sumitomo Heavy Industries, Ltd. shipyard in Yokosuka, Kanagawa, Japan. She was completed on 8 March 2010.

She was an Aframax-rated tanker capable of transporting about 80,000–100,000 metric tons (79,000–98,000 long tons; 88,000–110,000 short tons) of oil.

Her recorded length overall was 229.6 m (753 ft), and she was 217.8 m (715 ft) long between perpendiculars, with a beam of 42.0 m (137.8 ft). The ship had a capacity of 105,319 tonnes deadweight (DWT), while her gross tonnage (GT) was 55,909.

On 12 January 2021, she was officially commissioned into the navy. A day later, she participated in a missile exercise in the Gulf of Oman[9] that included carrying commandos to the ship.

Iranian media stated that Makran displaces 121,000 metric tons (119,000 long tons; 133,000 short tons), and put her dimensions at 228 m (748 ft) long, 42 m (138 ft) wide and 21.5 m (71 ft) tall. The ship is equipped with information collection and processing gear.