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InterXion Holding N.V. Announces Private Offering of €1,000,000,000 of Senior Notes Due 2025

Not for distribution to any person located or resident in any jurisdiction where it is unlawful to distribute this announcement.

5 June 2018

AMSTERDAM-Jun. 5, 2018- InterXion Holding N.V. (“InterXion”, “we, “us”, or the “Company”) (NYSE: INXN) today announced that it intends to offer, subject to market and other conditions, €1,000,000,000 aggregate principal amount of senior notes due 2025 (the “Notes”) and that it expects to enter into a new €200,000,000 senior unsecured revolving credit facility (the “Revolving Credit Facility”) upon completion of the offering of the Notes. The Notes and the Revolving Credit Facility will be guaranteed by certain subsidiaries of the Company.

The Company expects to use proceeds from the offering of the Notes (i) to redeem the entire outstanding principal amount of its €625 million 6.00% senior secured notes due 2020, (ii) to repay €100 million in amounts drawn under its €100 million super senior revolving credit facility, €100 million in amounts drawn under its €100 million senior secured revolving facility, €50 million in amounts drawn under its €225 million unsecured subordinated revolving credit facility and to terminate each of these facilities, (iii) for general corporate purposes and (iv) to pay fees and expenses incurred in connection with the offering and the refinancing.

The Notes and the guarantees thereof have not been registered under the Securities Act of 1933, as amended (the “Securities Act”), or applicable state securities laws. Accordingly, the Notes will be offered only to qualified institutional buyers and to persons outside the United States in reliance on Rule 144A and Regulation S under the Securities Act, respectively. Unless so registered, the Notes may not be offered or sold in the United States except pursuant to an exemption from the registration requirements of the Securities Act and applicable state securities laws. Prospective purchasers that are qualified institutional buyers are hereby notified that the seller of the Notes may be relying on the exemption from the provisions of Section 5 of the Securities Act provided by Rule 144A.

This news release shall not constitute an offer to sell or the solicitation of an offer to buy these securities, nor shall there be any sale of these securities in any state or jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state.

Neither the content of InterXion’s website nor any website accessible by hyperlinks on InterXion’s website is incorporated in, or forms part of, this announcement. The distribution of this announcement into certain jurisdictions may be restricted by law. Persons into whose possession this announcement comes should inform themselves about and observe any such restrictions. Any failure to comply with these restrictions may constitute a violation of the securities laws of any such jurisdiction.

Forward-looking Statements

This communication contains forward-looking statements that involve risks and uncertainties. There can be no assurance that such statements will prove to be accurate and actual results and future events could differ materially from those anticipated in such forward-looking statements. Factors that could cause actual results and future events to differ materially from Interxion’s expectations include, but are not limited to, the difficulty of reducing operating expenses in the short term, the inability to utilise the capacity of newly planned data centres and data centre expansions, significant competition, the cost and supply of electrical power, data centre industry over-capacity, performance under service level agreements, certain other risks detailed herein and other risks described from time to time in Interxion’s filings with the United States Securities and Exchange Commission.

Interxion does not assume any obligation to update the forward-looking information contained in this report.

About Interxion

Interxion (NYSE: INXN) is a leading provider of carrier and cloud-neutral colocation data centre services in Europe, serving a wide range of customers through more than 50 data centres in 11 European countries. Interxion’s uniformly designed, energy efficient data centres offer customers extensive security and uptime for their mission-critical applications.

With over 700 connectivity providers, 21 European Internet exchanges, and most leading cloud and digital media platforms across its footprint, Interxion has created connectivity, cloud, content and finance hubs that foster growing customer communities of interest.  For more information, please visit www.interxion.com.