CCI Crown Castle Inc

Crown Castle International Corp. (NYSE: CCI) (“Crown Castle”) announced today certain year-end tax reporting information for its 2018 distributions.

The following tables summarize, for income tax purposes, the nature of distributions paid to holders of Crown Castle Common Stock, par value $.01 per share (“Common Stock”), and holders of Crown Castle 6.875% Mandatory Convertible Preferred Stock (“Preferred Stock”), presented on a per share basis, during the calendar year ended December 31, 2018.  Stockholders are encouraged to consult with their tax advisors as to their specific tax treatment of Crown Castle’s distributions.

Crown Castle Common StockTicker Symbol: CCI

Record  Date	Payable Date	CashDistribution(per share)		OrdinaryTaxableDividend(per share)		QualifiedTaxableDividend(per share)*		Section 199ADividend(per share)*		Non-TaxableDistribution(per share)
3/16/2018	3/30/2018	$1.05		$0.689		$0.005		$0.684		$0.361
6/15/2018	6/29/2018	$1.05		$0.689		$0.005		$0.684		$0.361
9/14/2018	9/28/2018	$1.05		$0.689		$0.005		$0.684		$0.361
12/14/2018	12/31/2018	$1.125		$0.738		$0.005		$0.733		$0.387

*Qualified taxable dividend and section 199A dividend amounts included in ordinary taxable dividend amount.

Notes:

• During the calendar year ended December 31, 2018, there was no Unrecaptured Section 1250 Gain with respect to the common stock, or no long-term capital gain.
• IRS Form 8937, Report of Organizational Actions Affecting Basis of Securities, disclosing additional information relating to the non-taxable distributions attributable to Crown Castle Common Stock has been posted to the Investors section of the Company’s website: www.crowncastle.com/investors/shareholder-services.

Crown Castle 6.875% Mandatory Convertible Preferred StockTicker Symbol: CCI-PRA

Record  Date	Payable Date	CashDistribution(per share)		OrdinaryTaxableDividend(per share)		QualifiedTaxableDividend(per share)*		Section 199ADividend(per share)*		Non-TaxableDistribution(per share)
1/15/2018	2/1/2018	$17.1875		$17.1875		$0.1269		$17.0606		$0.00
4/15/2018	5/1/2018	$17.1875		$17.1875		$0.1269		$17.0606		$0.00
7/15/2018	8/1/2018	$17.1875		$17.1875		$0.1269		$17.0606		$0.00
10/15/2018	11/1/2018	$17.1875		$17.1875		$0.1269		$17.0606		$0.00

*Qualified taxable dividend and section 199A dividend amounts included in ordinary taxable dividend amount.

Notes:

• During the calendar year ended December 31, 2018, there was no Unrecaptured Section 1250 Gain with respect to the 6.875% Mandatory Convertible Preferred Stock, or no long-term capital gain or non-taxable distributions.

ABOUT CROWN CASTLE

Crown Castle owns, operates and leases more than 40,000 cell towers and approximately 65,000 route miles of fiber supporting small cells and fiber solutions across every major U.S. market. This nationwide portfolio of communications infrastructure connects cities and communities to essential data, technology and wireless service – bringing information, ideas and innovations to the people and businesses that need them. For more information on Crown Castle, please visit www.crowncastle.com.

CONTACTSDan Schlanger, CFOBen Lowe, VP & TreasurerCrown Castle International Corp.713-570-3050