A summary of outstanding indebtedness of the Operating Partnership as of March 31, 2019 and December 31, 2018 is as follows (in thousands):



Indebtedness	Interest Rate at March 31, 2019		Maturity Date		Principal Outstanding at March 31, 2019				Principal Outstanding at December 31, 2018
Global revolving credit facilities	Various	(1)(4)	Jan 24, 2023	(1)	$	857,211		(2)	$	1,663,156		(2)
Deferred financing costs, net					(14,236		)		(15,421		)
Global revolving credit facilities, net					842,975				1,647,735
Unsecured Term Loans
2019 Term Loan	Base Rate + 1.000%		Jan 19, 2019		—				375,000
2023 Term Loan	Various	(3)(4)	Jan 15, 2023		300,000			(5)	300,000			(5)
2024 Term Loan	Various	(3)(4)	Jan 24, 2023	(3)	511,654			(5)	508,120			(5)
Deferred financing costs, net					(3,928		)		(4,216		)
Unsecured term loans, net					807,726				1,178,904
Floating rate notes due 2019	EURIBOR + 0.500%		May 22, 2019		140,225			(6)	143,338			(6)
5.875% notes due 2020	5.875%		Feb 1, 2020		—			(8)	500,000
3.400% notes due 2020	3.400%		Oct 1, 2020		500,000				500,000
5.250% notes due 2021	5.250%		Mar 15, 2021		400,000				400,000
3.950% notes due 2022	3.950%		Jul 1, 2022		500,000				500,000
3.625% notes due 2022	3.625%		Oct 1, 2022		300,000				300,000
2.750% notes due 2023	2.750%		Feb 1, 2023		350,000				350,000
4.750% notes due 2023	4.750%		Oct 13, 2023		391,050			(7)	382,620			(7)
2.625% notes due 2024	2.625%		Apr 15, 2024		673,080			(6)	688,020			(6)
2.750% notes due 2024	2.750%		Jul 19, 2024		325,875			(7)	318,850			(7)
4.250% notes due 2025	4.250%		Jan 17, 2025		521,400			(7)	510,160			(7)
4.750% notes due 2025	4.750%		Oct 1, 2025		450,000				450,000
2.500% notes due 2026	2.500%		Jan 16, 2026		1,205,935			(6)	—
3.700% notes due 2027	3.700%		Aug 15, 2027		1,000,000				1,000,000
4.450% notes due 2028	4.450%		Jul 15, 2028		650,000				650,000
3.300% notes due 2029	3.300%		Jul 19, 2029		456,225			(7)	446,390			(7)
3.750% notes due 2030	3.750%		Oct 17, 2030		$	716,925		(7)(9)	$	510,160		(7)
Unamortized discounts, net of premiums					(11,520		)		(19,859		)
Total senior notes, net of discount					8,569,195				7,629,679
Deferred financing costs, net					(45,733		)		(40,553		)
Total unsecured senior notes, net of discount and deferred financing costs					8,523,462				7,589,126



Indebtedness	Interest Rate at March 31, 2019		Maturity Date	Principal Outstanding March 31, 2019				Principal Outstanding December 31, 2018
Secured Debt:
731 East Trade Street	8.22%		Jul 1, 2020	$	1,621			$	1,776
Secured note due March 2023	LIBOR + 1.100%	(4)	Mar 1, 2023	104,000				104,000
Secured note due December 2023	Base Rate + 4.250%		Dec 20, 2023	—			(10)	600,000
Unamortized net premiums				124				148
Total mortgage loans, including premiums				105,745				705,924
Deferred financing costs, net				(252		)		(20,210		)
Total secured debt, including premiums and net of deferred financing costs				105,493				685,714
Total indebtedness				$	10,279,656			$	11,101,479

_________________________________

(1)

The interest rate for borrowings under the global revolving credit facility equals the applicable index plus a margin of 90 basis points, which is based on the current credit rating of our long-term debt. An annual facility fee of 20 basis points, which is based on the credit rating of our long-term debt, is due and payable quarterly on the total commitment amount of the facility. Two six-month extensions are available, which we may exercise if certain conditions are met. The interest rate for borrowings under the Yen revolving credit facility equals the applicable index plus a margin of 50 basis points, which is based on the current credit rating of our long-term debt.


(2)	Balances as of March 31, 2019 and December 31, 2018 are as follows (balances, in thousands):



Denomination of Draw	Balance as of March 31, 2019			Weighted-average interest rate		Balance as of December 31, 2018			Weighted-average interest rate
Floating Rate Borrowing (a)(d)
U.S. dollar ($)	$	290,000		3.39	%	$	890,000		3.37	%
British pound sterling (£)	—			—	%	8,290		(c)	1.61	%
Euro (€)	203,046		(b)	0.90	%	451,800		(c)	0.90	%
Australian dollar (AUD)	31,648		(b)	2.74	%	27,632		(c)	2.82	%
Hong Kong dollar (HKD)	10,051		(b)	2.43	%	8,797		(c)	3.14	%
Japanese yen (JPY)	4,059		(b)	0.90	%	4,105		(c)	0.90	%
Singapore dollar (SGD)	77,680		(b)	2.83	%	77,112		(c)	2.79	%
Canadian dollar (CAD)	67,794		(b)	2.81	%	60,856		(c)	3.16	%
Total	$	684,278		2.47	%	$	1,528,592		2.57	%

Yen Revolving Credit Facility	$	172,933	(b)	0.50	%	$	134,564	(c)	0.50	%

Total borrowings	$	857,211		2.07	%	$	1,663,156		2.41	%


(a)	The interest rates for floating rate borrowings under the global revolving credit facility currently equal the applicable index plus a margin of 90 basis points, which is based on the credit rating of our long-term debt.


(b)	Based on exchange rates of $1.12 to €1.00, $0.71 to 1.00 AUD, $0.13 to 1.00 HKD, $0.01 to 1.00 JPY, $0.74 to 1.00 SGD and $0.75 to 1.00 CAD, respectively, as of March 31, 2019.


(c)	Based on exchange rates of $1.28 to £1.00, $1.15 to €1.00, $0.70 to 1.00 AUD, $0.13 to 1.00 HKD, $0.01 to 1.00 JPY, $0.73 to 1.00 SGD and $0.73 to 1.00 CAD, respectively, as of December 31, 2018.


(d)	As of March 31, 2019, approximately $45.0 million of letters of credit were issued.


(3)	Interest rates are based on our current senior unsecured debt ratings and is currently 100 basis points over the applicable index for floating rate advances for the 2023 Term Loan and the 2024 Term Loan. Two six-month extensions are available for the 2024 Term Loan, which we may exercise if certain conditions are met.


(4)	We have entered into interest rate swap agreements as a cash flow hedge for interest generated by the U.S. dollar and Canadian dollar borrowings under the global revolving credit facility, the 2023 Term Loan and 2024 Term Loan and the secured note due March 2023. See Note 15 "Derivative Instruments" for further information.


(5)	Balances as of March 31, 2019 and December 31, 2018 are as follows (balances, in thousands):



Denomination of Draw	Balance as of March 31, 2019			Weighted-average interest rate			Balance as of December 31, 2018			Weighted-average interest rate
U.S. dollar ($)	$	300,000		3.48	%	(b)	$	300,000		3.46	%	(d)
Singapore dollar (SGD)	146,876		(a)	2.80	%		146,080		(c)	2.76	%
Australian dollar (AUD)	205,997		(a)	2.85	%		204,632		(c)	2.94	%
Hong Kong dollar (HKD)	84,995		(a)	2.55	%		85,188		(c)	3.32	%
Canadian dollar (CAD)	73,786		(a)	2.98	%	(b)	72,220		(c)	3.24	%	(d)
Total	$	811,654		3.05	%	(b)	$	808,120		3.17	%	(d)


(a)	Based on exchange rates of $0.74 to 1.00 SGD, $0.71 to 1.00 AUD, $0.13 to 1.00 HKD and $0.75 to 1.00 CAD, respectively, as of March 31, 2019.


(b)	As of March 31, 2019, the weighted-average interest rate reflecting interest rate swaps was 2.44% (U.S. dollar), 1.78% (Canadian dollar) and 2.56% (Total). See Note 15 "Derivative Instruments" for further discussion on interest rate swaps.


(c)	Based on exchange rates of $0.73 to 1.00 SGD, $0.70 to 1.00 AUD, $0.13 to 1.00 HKD and $0.73 to 1.00 CAD, respectively, as of December 31, 2018.


(d)	As of December 31, 2018, the weighted-average interest rate reflecting interest rate swaps was 2.44% (U.S. dollar), 1.78% (Canadian dollar) and 2.66% (Total).


(6)	Based on exchange rates of $1.12 to €1.00 as of March 31, 2019 and $1.15 to €1.00 as of December 31, 2018.


(7)	Based on exchange rates of $1.30 to £1.00 as of March 31, 2019 and $1.28 to £1.00 as of December 31, 2018.


(8)	The 5.875% 2020 Notes were paid in full in January 2019 (by tender offer) and February 2019 (by redemption of remaining balance after the tender offer). The tender offer and redemption resulted in an early extinguishment charge of approximately $12.9 million during the three months ended March 31, 2019.

(9)

On March 5, 2019, Digital Stout Holding, LLC, a wholly owned subsidiary of the Operating Partnership, issued and sold an additional £150.0 million aggregate principal amount of 2030 Notes. The terms of the 2030 Notes are governed by an indenture, dated as of October 17, 2018, among Digital Stout Holding, LLC, Digital Realty Trust, Inc., the Operating Partnership, Deutsche Trustee Company Limited, as trustee, Deutsche Bank AG, London Branch, as paying agent and a transfer agent, and Deutsche Bank Luxembourg S.A., as registrar and a transfer agent (the “GBP Notes Indenture”), pursuant to which Digital Stout Holding, LLC previously issued £400.0 million in aggregate principal amount of its 2030 Notes. The 2030 Notes will be treated as a single series with the notes previously issued under such GBP Notes Indenture.


(10)	The debt was deconsolidated as a result of the Ascenty joint venture formed with Brookfield.