Alaska Stat. § 25.25.204
(a) A tribunal of this state may exercise jurisdiction to establish a support order if the complaint or comparable pleading is filed after a complaint or comparable pleading is filed in another state or a foreign country only if
(b) A tribunal of this state may not exercise jurisdiction to establish a support order if the complaint or comparable pleading is filed before a complaint or comparable pleading is filed in another state or a foreign country if