UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): August 13, 2014

INTELIQUENT, INC.

(Exact name of registrant as specified in its charter)

550 West Adams Street

9th Floor

Chicago, Illinois 60661

(Address of principal executive offices, including Zip Code)

(312) 384-8000

(Registrant’s telephone number, including area code)

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

Item 8.01. Other Events.

Increase In Recurring Cash Dividend

On August 13, 2014, Inteliquent, Inc. (the “Company”) issued a press release announcing that its Board of Directors authorized and declared a regular quarterly dividend of $0.15 per outstanding share of common stock (the “Quarterly Dividend”). The payment date for the Quarterly Dividend is September 24, 2014 and the record date for the Quarterly Dividend is the close of business on September 10, 2014.

A copy of the press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference.

Item 9.01. Financial Statements and Exhibits.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: August 13, 2014

EXHIBIT INDEX

Exhibit 99.1

Analyst Contact:

Kurt Abkemeier

investorrelations@inteliquent.com

Inteliquent Declares Increased Quarterly Dividend

Chicago, August 13, 2014 – Inteliquent, Inc. (NASDAQ: IQNT), a leading provider of voice services, announced today that its Board of Directors has declared a quarterly dividend of $0.15 per outstanding share of common stock. The quarterly dividend will be paid on September 24, 2014, to shareholders of record as of the close of business on September 10, 2014.

“We are very pleased to make this substantial increase to our regular quarterly dividend,” said Ed Evans, Chief Executive Officer of Inteliquent. “As we’ve stated previously, we are committed to regularly examining our balance sheet and returning cash to shareholders when appropriate. In determining the size of the increase to our dividend, our board sought to insure that we maintained sufficient capital to allow us to continue to invest in developing and diversifying our product and service offerings. We believe that doubling our quarterly dividend achieves this objective while enabling our shareholders to realize the benefit of our solid balance sheet and our continued ability to generate cash.”

Cautionary Statement Regarding Forward-Looking Statements

This press release contains “forward-looking statements” that involve substantial risks and uncertainties. All statements, other than statements of historical fact, included in this press release are forward-looking statements. The words “anticipates,” “believes,” “efforts,” “expects,” “estimates,” “projects,” “proposed,” “plans,” “intends,” “may,” “will,” “would,” and similar expressions are intended to identify forward-looking statements, although not all forward-looking statements contain these identifying words. Actual results or events could differ materially from the plans, intentions and expectations disclosed in the forward-looking statements we make. Factors that might cause such differences include, but are not limited to: the effects of competition, including direct connects, and downward pricing pressure resulting from such competition; our regular review of strategic alternatives; the impact of current and future regulation, including intercarrier compensation reform enacted by the Federal Communications Commission; the risks associated with our ability to successfully develop and market new voice services, many of which are beyond our control and all of which could delay or negatively affect our ability to offer or market new voice services; the ability to develop and provide other new services; technological developments; the ability to obtain and protect intellectual property rights; the impact of current or future litigation; the potential impact of any future acquisitions, mergers or divestitures; natural or man-made disasters; the ability to attract, develop and retain executives and other qualified employees; changes in general economic or market conditions; matters arising out of or related to the impairment charge and financial forecasting practices that were the subject of an investigation by the Company’s Audit Committee; the possibility that the Securities and Exchange Commission may disagree with the Audit Committee’s findings and may require a restatement of financial statements or additional or different remediation; the possibility of litigation or other actions related to the impairment charge and financial forecasting practices that were subject to investigation by the Audit Committee and related matters; and other important factors included in our reports filed with the Securities and Exchange Commission, particularly in the “Risk Factors” section of our Annual Report on Form 10-K for the period ended December 31, 2013, as such Risk Factors may be updated from time to time in subsequent reports. Furthermore, such forward-looking statements speak only as of the date of this press release. We undertake no obligation to update any forward-looking statements to reflect events or circumstances after the date of such statements.

About Inteliquent

Inteliquent is a leading provider of wholesale voice services for carriers and service providers. Inteliquent is used by nearly all national and regional wireless carriers, cable companies and CLECs in the markets it serves, and its network carries approximately ten billion minutes of traffic per month. Please visit Inteliquent’s website at www.inteliquent.com and follow us on Twitter @Inteliquent.

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