Title 18Crimes and Criminal ProcedureRelease 119-73

§3127 Definitions for chapter

Title 18 › Part PART II— - CRIMINAL PROCEDURE › Chapter CHAPTER 206— - PEN REGISTERS AND TRAP AND TRACE DEVICES › § 3127

Last updated Apr 6, 2026|Official source

Summary

Defines key words used in this chapter. The words "wire communication," "electronic communication," "electronic communication service," and "contents" mean what section 2510 of this title says. "Court of competent jurisdiction" means either a U.S. district court (including a magistrate) or a U.S. court of appeals that has jurisdiction over the offense, or is in the district where the service provider or a landlord/custodian named in section 3124 is located, or is acting on a foreign assistance request under section 3512; or a state criminal court that state law allows to issue pen register or trap and trace orders. A "pen register" records dialing, routing, addressing, or signaling information (not the message content) and does not include provider tools used for billing or ordinary cost accounting. A "trap and trace device" captures incoming signals that identify the originating number or similar routing info (not the message content). "Attorney for the Government" has the meaning given by the Federal Rules of Criminal Procedure. "State" means any State, the District of Columbia, Puerto Rico, and any U.S. possession or territory.

Full Legal Text

Title 18, §3127

Crimes and Criminal Procedure — Source: USLM XML via OLRC

As used in this chapter—
(1)the terms “wire communication”, “electronic communication”, “electronic communication service”, and “contents” have the meanings set forth for such terms in section 2510 of this title;
(2)the term “court of competent jurisdiction” means—
(A)any district court of the United States (including a magistrate judge of such a court) or any United States court of appeals that—
(i)has jurisdiction over the offense being investigated;
(ii)is in or for a district in which the provider of a wire or electronic communication service is located;
(iii)is in or for a district in which a landlord, custodian, or other person subject to subsections (a) or (b) of section 3124 of this title is located; or
(iv)is acting on a request for foreign assistance pursuant to section 3512 of this title; or
(B)a court of general criminal jurisdiction of a State authorized by the law of that State to enter orders authorizing the use of a pen register or a trap and trace device;
(3)the term “pen register” means a device or process which records or decodes dialing, routing, addressing, or signaling information transmitted by an instrument or facility from which a wire or electronic communication is transmitted, provided, however, that such information shall not include the contents of any communication, but such term does not include any device or process used by a provider or customer of a wire or electronic communication service for billing, or recording as an incident to billing, for communications services provided by such provider or any device or process used by a provider or customer of a wire communication service for cost accounting or other like purposes in the ordinary course of its business;
(4)the term “trap and trace device” means a device or process which captures the incoming electronic or other impulses which identify the originating number or other dialing, routing, addressing, and signaling information reasonably likely to identify the source of a wire or electronic communication, provided, however, that such information shall not include the contents of any communication;
(5)the term “attorney for the Government” has the meaning given such term for the purposes of the Federal Rules of Criminal Procedure; and
(6)the term “State” means a State, the District of Columbia, Puerto Rico, and any other possession or territory of the United States.

Legislative History

Notes & Related Subsidiaries

Editorial Notes

References in Text

The Federal Rules of Criminal Procedure, referred to in par. (5), are set out in the Appendix to this title.

Amendments

2009—Par. (2)(A). Pub. L. 111–79 substituted “that—” and cls. (i) to (iv) for “having jurisdiction over the offense being investigated; or”. 2001—Par. (1). Pub. L. 107–56, § 216(c)(4), struck out “and” after “ ‘electronic communication’,” and inserted “, and ‘contents’ ” after “ ‘electronic communication service’ ”. Par. (2)(A). Pub. L. 107–56, § 216(c)(1), added subpar. (A) and struck out former subpar. (A) which read as follows: “a district court of the United States (including a magistrate judge of such a court) or a United States Court of Appeals; or”. Par. (3). Pub. L. 107–56, § 216(c)(2), substituted “dialing, routing, addressing, or signaling information transmitted by an instrument or facility from which a wire or electronic communication is transmitted, provided, however, that such information shall not include the contents of any communication” for “electronic or other impulses which identify the numbers dialed or otherwise transmitted on the telephone line to which such device is attached” and inserted “or process” after “device” wherever appearing. Par. (4). Pub. L. 107–56, § 216(c)(3), inserted “or process” after “means a device” and substituted “or other dialing, routing, addressing, and signaling information reasonably likely to identify the source of a wire or electronic communication, provided, however, that such information shall not include the contents of any communication;” for “of an instrument or device from which a wire or electronic communication was transmitted;”. 1988—Pub. L. 100–690 renumbered section 3126 of this title as this section.

Statutory Notes and Related Subsidiaries

Effective Date

Section effective 90 days after Oct. 21, 1986, and, in case of conduct pursuant to court order or extension, applicable only with respect to court orders and extensions made after such date, with special rule for State authorizations of interceptions, see section 302 of Pub. L. 99–508, set out as a note under section 3121 of this title.

Reference

Citations & Metadata

Citation

18 U.S.C. § 3127

Title 18Crimes and Criminal Procedure

Last Updated

Apr 6, 2026

Release point: 119-73