MEMORANDUM *
Michael Aaron Jayne appeals from the district court’s summary judgment in his 42 U.S.C. § 1988 action alleging that Defendants Steve Blunk, Regina Collier, and the Anderson Police Department violated his rights by seeking to obtain his cell phone location data without a warrant. We review the district court’s decision de novo, Snow v. McDaniel, 681 F.3d 978, 985 (9th Cir.2012), and affirm.
1. With respect to Jayne’s Fourth Amendment claim, it is undisputed that the Anderson Police Department submitted a request to Sprint Nextel for Jayne’s cell phone location data without first obtaining a warrant. But that request was withdrawn hours later, before any contemporaneous GPS location information was collected and before any historical data indicative of location were received. Although Sprint Nextel sent Defendants some records after the request was rescinded, Defendants attest that the records were immediately destroyed. Moreover, there is no evidence that Sprint Nextel included location data in those records, in disregard of the -withdrawal of the request for such data.
Even if the records had contained location data, there was still no search by a governmental entity, subject to the Fourth Amendment, as the government did not acquiesce in the continuation of GPS location surveillance or transmission of the historical cell phone location data that Sprint Nextel already had. See Coolidge v. New Hampshire, 403 U.S. 443, 487, 91 S.Ct. 2022, 29 L.Ed.2d 564 (1971) (stating that Fourth Amendment interests are implicated where a private party acts as an “ ‘instrument’ or agent of the state” in effecting a search or seizure); United States v. Cleaveland, 38 F.3d 1092, 1093 (9th Cir.1994) (explaining that unless the government acquiesces in a private party’s search, the search does not implicate the Fourth Amendment); United States v. Sherwin, 539 F.2d 1, 6 (9th Cir.1976) (en banc) (“A private person cannot act unilaterally as an agent or instrument of the state; there must be some degree of governmental knowledge and acquiescence. In the absence of such official involvement, a search is not governmental.”).
Jayne attests that he saw a document listing telephone numbers obtained from his call records. But there is no reasonable expectation of privacy in the phone numbers dialed or from which calls are received, so the acquisition of such information does not constitute a search under the Fourth Amendment. See Smith v. Maryland, 442 U.S. 735, 745-46, 99 S.Ct. 2577, 61 L.Ed.2d 220 (1979).
2. In absence of evidence that Defendants obtained cell phone location records, there is no basis for claiming that the government violated the Stored Communi*643cations Act (“SCA”), 18 U.S.C. §§ 2701-2712, with respect to such records. Thus, even if a claim against the government based on the SCA were cognizable under § 1988 — which we do not decide — Defendants are entitled to summary judgment on Jayne’s claim for § 1988 relief arising from purported violations of his statutory rights.
Finally, Jayne’s First Amendment retaliation claim cannot survive summary judgment because he has presented no evidence from which a reasonable jury could conclude that the named defendants caused any retaliation suffered. See Skoog v. Cnty. of Clackamas, 469 F.3d 1221, 1232 & nn. 28-29 (9th Cir.2006) (citing Mendocino Envtl. Ctr. v. Mendocino Cnty., 192 F.3d 1283, 1300 (9th Cir.1999) (“In order to demonstrate a First Amendment violation, a plaintiff must provide evidence showing that ‘by his actions [the defendant] deterred or chilled [the plaintiffs protected] speech and such deterrence was a substantial or motivating factor in [the defendant’s] conduct.’ ”) (alterations in original)). The individual defendants were not the officers responsible for the allegedly violative action — the warrantless request for Jayne’s cell phone records. Nor is there any evidence that they were aware of Jayne’s past disputes with, or grievances against, parole agent Randy Abney, or had been prompted by Abney to act.
Furthermore, the Anderson Police Department cannot be held liable under § 1983 absent evidence that the purported violation of Jayne’s rights was effected pursuant to a policy or custom of the Department. See Monell v. Dep’t of Soc. Servs., 436 U.S. 658, 98 S.Ct. 2018, 56 L.Ed.2d 611 (1978). Jayne has not shown that it was Department policy or custom to obtain cell phone location data without a warrant, and he cannot “prove the existence of a municipal policy or custom based solely on the occurrence of a single incident of [purportedly] unconstitutional action by a non-policymaking employee.” Davis v. City of Ellensburg, 869 F.2d 1230, 1233-34 (9th Cir.1989) (citing City of Oklahoma City v. Tuttle, 471 U.S. 808, 823-24, 105 S.Ct. 2427, 85 L.Ed.2d 791 (1985) (plurality opinion)).
AFFIRMED.