90 Id.; see also National Ass’n of Regulatory Utility Commissioners v. FCC, 746 F.2d 1492, 1501 (D.C. Cir. 1984) (“[W]e have concluded that the FCC has broad power to regulate physically intrastate facilities where they are used for interstate communication.”). To be sure, Core Communications concerned dial-up internet access, but because broadband involves a similar mix of local facilities and interstate information networks, we see no meaningful distinction between the interpretation approved in Core Communications and the one the Commission offered here. Nor do we see any reason to obligate the Commission to determine the legal status of each underlying “hypothetical regulatory obligation[]” that could result from any particular Communications Act provision prior to undertaking the section 10 forbearance analysis. AT & T Inc. v. FCC, 452 F.3d 830, 836–37 (D.C. Cir. 2006). Full Service Network’s final argument is not especially clear. It appears to claim that the Commission provided inadequate support for its forbearance decision. Pointing out that in prior proceedings the Commission had found that mandatory unbundling in the telephone context would promote competition and emphasizing that Congress passed section 251 to foster competition, Full Service Network argues that “[section 10] surely requires more to support forbearance than an assertion by the FCC that ‘other authorities’ are adequate and the public interest will be better served by enhancing the agency’s discretion.” Full Service Network Pet’rs’ Br. 20. In evaluating Full Service Network’s argument that the Commission failed to provide adequate justification for its forbearance decision, we are guided by “the traditional ‘arbitrary and capricious’ standard,” Cellular Telecommunications & Internet Ass’n v. FCC, 330 F.3d 502,