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LONG-TERM OBLIGATIONS | 3 Months Ended
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Mar. 31, 2025
Debt Disclosure [Abstract] |
LONG-TERM OBLIGATIONS | LONG-TERM OBLIGATIONS Outstanding amounts under the Company’s long-term obligations, reflecting discounts, premiums and debt issuance costs, consisted of the following:
| As of |  |
| March 31, 2025 |  | December 31, 2024 |  | Maturity Date
2021 Multicurrency Credit Facility (1) | $ | 50.0 |  |  | $ | — |  |  | January 28, 2028
2021 Term Loan (1) | 997.5 |  |  | 997.9 |  |  | January 28, 2028
2021 Credit Facility (1) | 360.0 |  |  | — |  |  | January 28, 2030
2.950% senior notes (2) | — |  |  | 650.0 |  |  | January 15, 2025
2.400% senior notes (3) | — |  |  | 749.7 |  |  | March 15, 2025
1.375% senior notes (4) (5) | 540.8 |  |  | 517.3 |  |  | April 4, 2025
4.000% senior notes | 749.8 |  |  | 749.4 |  |  | June 1, 2025
1.300% senior notes | 499.5 |  |  | 499.3 |  |  | September 15, 2025
4.400% senior notes | 499.5 |  |  | 499.3 |  |  | February 15, 2026
1.600% senior notes | 698.8 |  |  | 698.5 |  |  | April 15, 2026
1.950% senior notes (5) | 539.7 |  |  | 516.4 |  |  | May 22, 2026
1.450% senior notes | 597.8 |  |  | 597.4 |  |  | September 15, 2026
3.375% senior notes | 997.0 |  |  | 996.6 |  |  | October 15, 2026
3.125% senior notes | 399.4 |  |  | 399.3 |  |  | January 15, 2027
2.750% senior notes | 748.2 |  |  | 748.0 |  |  | January 15, 2027
0.450% senior notes (5) | 809.1 |  |  | 774.1 |  |  | January 15, 2027
0.400% senior notes (5) | 538.5 |  |  | 515.0 |  |  | February 15, 2027
3.650% senior notes | 646.8 |  |  | 646.4 |  |  | March 15, 2027
4.125% senior notes (5) | 646.6 |  |  | 618.5 |  |  | May 16, 2027
3.55% senior notes | 748.1 |  |  | 747.9 |  |  | July 15, 2027
3.600% senior notes | 697.2 |  |  | 697.0 |  |  | January 15, 2028
0.500% senior notes (5) | 807.7 |  |  | 772.6 |  |  | January 15, 2028
1.500% senior notes | 648.0 |  |  | 647.8 |  |  | January 31, 2028
5.500% senior notes | 695.4 |  |  | 695.0 |  |  | March 15, 2028
5.250% senior notes | 645.5 |  |  | 645.2 |  |  | July 15, 2028
5.800% senior notes | 744.9 |  |  | 744.6 |  |  | November 15, 2028
5.200% senior notes | 644.1 |  |  | 643.7 |  |  | February 15, 2029
3.950% senior notes | 595.1 |  |  | 594.8 |  |  | March 15, 2029
0.875% senior notes (5) | 808.0 |  |  | 773.0 |  |  | May 21, 2029
3.800% senior notes | 1,641.0 |  |  | 1,640.5 |  |  | August 15, 2029
2.900% senior notes | 745.4 |  |  | 745.1 |  |  | January 15, 2030
5.000% senior notes | 593.5 |  |  | 593.2 |  |  | January 31, 2030
4.900% senior notes | 643.9 |  |  | — |  |  | March 15, 2030
3.900% senior notes (5) | 536.2 |  |  | 512.9 |  |  | May 16, 2030
2.100% senior notes | 744.4 |  |  | 744.1 |  |  | June 15, 2030
0.950% senior notes (5) | 536.0 |  |  | 512.6 |  |  | October 5, 2030
1.875% senior notes | 794.5 |  |  | 794.3 |  |  | October 15, 2030
2.700% senior notes | 695.8 |  |  | 695.6 |  |  | April 15, 2031
4.625% senior notes (5) | 535.0 |  |  | 511.7 |  |  | May 16, 2031
2.300% senior notes | 693.8 |  |  | 693.6 |  |  | September 15, 2031
1.000% senior notes (5) | 697.9 |  |  | 667.6 |  |  | January 15, 2032
4.050% senior notes | 643.9 |  |  | 643.7 |  |  | March 15, 2032
5.650% senior notes | 791.6 |  |  | 791.4 |  |  | March 15, 2033
1.250% senior notes (5) | 535.4 |  |  | 512.1 |  |  | May 21, 2033
5.550% senior notes | 841.6 |  |  | 841.4 |  |  | July 15, 2033
5.900% senior notes | 742.3 |  |  | 742.2 |  |  | November 15, 2033
5.450% senior notes | 640.8 |  |  | 640.6 |  |  | February 15, 2034
4.100% senior notes (5) | 533.8 |  |  | 510.5 |  |  | May 16, 2034
5.400% senior notes | 592.0 |  |  | 591.9 |  |  | January 31, 2035
5.350% senior notes | 346.1 |  |  | — |  |  | March 15, 2035
3.700% senior notes | 592.6 |  |  | 592.6 |  |  | October 15, 2049
3.100% senior notes | 1,038.9 |  |  | 1,038.8 |  |  | June 15, 2050
2.950% senior notes | 1,024.0 |  |  | 1,023.8 |  |  | January 15, 2051
Total American Tower Corporation debt | 34,533.4 |  |  | 34,174.9 |  |  |
Series 2015-2 notes (6) | 524.9 |  |  | 524.7 |  |  | June 16, 2025
Series 2018-1A securities (7) | 497.8 |  |  | 497.6 |  |  | March 15, 2028
Series 2023-1A securities (8) | 1,288.9 |  |  | 1,288.0 |  |  | March 15, 2028
Other subsidiary debt (9) | 1.2 |  |  | — |  |  | March 24, 2033
Total American Tower subsidiary debt | 2,312.8 |  |  | 2,310.3 |  |  |
Finance lease obligations | 16.1 |  |  | 16.6 |  |  |
Total | 36,862.3 |  |  | 36,501.8 |  |  |
Less current portion of long-term obligations | (2,816.9) |  |  | (3,693.0) |  |  |
Long-term obligations | $ | 34,045.4 |  |  | $ | 32,808.8 |  |  |
_______________ (1)Accrues interest at a variable rate. (2)Repaid in full on January 14, 2025 using cash on hand and borrowings under the 2021 Multicurrency Credit Facility (as defined below). (3)Repaid in full on March 14, 2025 using proceeds from the issuance of the 4.900% Notes and 5.350% Notes (each as defined below). (4)Repaid in full on April 3, 2025 using borrowings under the 2021 Multicurrency Credit Facility and cash on hand. (5)Notes are denominated in EUR. (6)Maturity date reflects the anticipated repayment date; final legal maturity is June 15, 2050. (7)Maturity date reflects the anticipated repayment date; final legal maturity is March 15, 2048. (8)Maturity date reflects the anticipated repayment date; final legal maturity is March 15, 2053. (9)As of March 31, 2025, includes the Bangladesh Term Loan (as defined below). Current portion of long-term obligations—The Company’s current portion of long-term obligations primarily includes (i) 500.0 million EUR aggregate principal amount of the Company’s 1.375% senior unsecured notes due April 4, 2025 (the “1.375% Notes”), (ii) $750.0 million aggregate principal amount of the Company’s 4.000% senior unsecured notes due June 1, 2025, (iii) $500.0 million aggregate principal amount of the Company’s 1.300% senior unsecured notes due September 15, 2025, (iv) $500.0 million aggregate principal amount of the Company’s 4.400% senior unsecured notes due February 15, 2026 and (v) $525.0 million aggregate principal amount of the Company’s Secured Tower Revenue Notes, Series 2015-2, Class A due June 16, 2025. Securitized Debt—Cash flows generated by the communications sites that secure the securitized debt of the Company are only available for payment of such debt and are not available to pay the Company’s other obligations or the claims of its creditors. However, subject to certain restrictions, the Company holds the right to receive the excess cash flows not needed to service the securitized debt and other obligations arising out of the securitizations. The securitized debt is the obligation of the issuers thereof or borrowers thereunder, as applicable, and their subsidiaries, and not of the Company or its other subsidiaries. Repayments of Senior Notes Repayment of 2.950% Senior Notes—On January 14, 2025, the Company repaid $650.0 million aggregate principal amount of the Company’s 2.950% senior unsecured notes due 2025 (the “2.950% Notes”) upon their maturity. The 2.950% Notes were repaid using cash on hand and borrowings under the 2021 Multicurrency Credit Facility. Upon completion of the repayment, none of the 2.950% Notes remained outstanding. Repayment of 2.400% Senior Notes—On March 14, 2025, the Company repaid $750.0 million aggregate principal amount of the Company’s 2.400% senior unsecured notes due 2025 (the “2.400% Notes”) upon their maturity. The 2.400% Notes were repaid using proceeds from the issuance of the 4.900% Notes and the 5.350% Notes. Upon completion of the repayment, none of the 2.400% Notes remained outstanding. Offerings of Senior Notes 4.900% Senior Notes and 5.350% Senior Notes Offering—On March 14, 2025, the Company completed a registered public offering of $650.0 million aggregate principal amount of 4.900% senior unsecured notes due 2030 (the “4.900% Notes”) and $350.0 million aggregate principal amount of 5.350% senior unsecured notes due 2035 (the “5.350% Notes,” and, together with the 4.900% Notes, the “Notes”). The net proceeds from this offering were approximately $988.9 million, after deducting commissions and estimated expenses. The Company used the net proceeds to repay the 2.400% Notes, to repay existing indebtedness under the 2021 Multicurrency Credit Facility and for general corporate purposes. The key terms of the Notes are as follows:
Senior Notes |  | Aggregate Principal Amount (in millions) |  | Issue Date and Interest Accrual Date |  | Maturity Date |  | Contractual Interest Rate |  | First Interest Payment |  | Interest Payments Due (1) |  | Par Call Date (2)
4.900% Notes |  | $ | 650.0 |  |  | March 14, 2025 |  | March 15, 2030 |  | 4.900% |  | September 15, 2025 |  | March 15 and September 15 |  | February 15, 2030
5.350% Notes |  | $ | 350.0 |  |  | March 14, 2025 |  | March 15, 2035 |  | 5.350% |  | September 15, 2025 |  | March 15 and September 15 |  | December 15, 2034
___________ (1)Accrued and unpaid interest on U.S. Dollar (“USD”) denominated notes is payable in USD semi-annually in arrears and will be computed from the issue date on the basis of a 360-day year comprised of twelve 30-day months. (2)The Company may redeem the Notes at any time, in whole or in part, at a redemption price equal to 100% of the principal amount of the Notes plus a make-whole premium, together with accrued interest to the redemption date. If the Company redeems the Notes on or after the par call date, the Company will not be required to pay a make-whole premium. If the Company undergoes a change of control and corresponding ratings decline, each as defined in the supplemental indenture for the Notes, the Company may be required to repurchase all of the Notes at a purchase price equal to 101% of the aggregate principal amount of the Notes repurchased, plus accrued and unpaid interest (including additional interest, if any), up to but not including the repurchase date. The Notes rank equally in right of payment with all of the Company’s other senior unsecured debt obligations and are structurally subordinated to all existing and future indebtedness and other obligations of its subsidiaries. The supplemental indenture contains certain covenants that restrict the Company’s ability to merge, consolidate or sell assets and its (together with its subsidiaries’) ability to incur liens. These covenants are subject to a number of exceptions, including that the Company and its subsidiaries may incur certain liens on assets, mortgages or other liens securing indebtedness if the aggregate amount of indebtedness secured by such liens does not exceed 3.5x Adjusted EBITDA, as defined in the supplemental indenture. Bank Facilities Amendments to Bank Facilities—On January 28, 2025, the Company amended its (i) $6.0 billion senior unsecured multicurrency revolving credit facility, as amended and restated in December 2021, as further amended (the “2021 Multicurrency Credit Facility”) (ii) $4.0 billion senior unsecured revolving credit facility, as amended and restated in December 2021, as further amended (the “2021 Credit Facility”) and (iii) $1.0 billion unsecured term loan, as amended and restated in December 2021, as further amended (the “2021 Term Loan”). These amendments, among other things, i.extend the maturity dates of the 2021 Multicurrency Credit Facility and the 2021 Credit Facility to January 28, 2028 and January 28, 2030, respectively; ii.extend the maturity date of the 2021 Term Loan to January 28, 2028; and iii.update the Applicable Margins (as defined in the loan agreements). 2021 Multicurrency Credit Facility—During the three months ended March 31, 2025, the Company borrowed an aggregate of $240.0 million and repaid an aggregate of $190.0 million of revolving indebtedness under the 2021 Multicurrency Credit Facility. The Company used the borrowings to repay outstanding indebtedness, including the 2.950% Notes. 2021 Credit Facility—During the three months ended March 31, 2025, the Company borrowed an aggregate of $610.0 million and repaid an aggregate of $250.0 million of revolving indebtedness under the 2021 Credit Facility. The Company used the borrowings for general corporate purposes. As of March 31, 2025, the key terms under the 2021 Multicurrency Credit Facility, the 2021 Credit Facility and the 2021 Term Loan were as follows:
| Outstanding Principal Balance (in millions) |  | Undrawn letters of credit (in millions) |  | Maturity Date |  | Current margin over SOFR or EURIBOR (1) |  | Current commitment fee (2)
2021 Multicurrency Credit Facility | $ | 50.0 |  |  | $ | 5.2 |  |  | January 28, 2028 | (3) | 1.000 | % |  | 0.110 | %
2021 Credit Facility | 360.0 |  |  | 30.3 |  |  | January 28, 2030 | (3) | 1.000 | % |  | 0.110 | %
2021 Term Loan | 1,000.0 |  |  | N/A |  | January 28, 2028 |  | 1.000 | % |  | N/A
_______________ (1)Secured Overnight Financing Rate (“SOFR”) applies to the USD denominated borrowings under the 2021 Multicurrency Credit Facility, the 2021 Credit Facility and the 2021 Term Loan. Euro Interbank Offer Rate (“EURIBOR”) applies for EURIBOR based borrowings. (2)Fee on undrawn portion of each credit facility. (3)Subject to two optional renewal periods. Bangladesh Term Loan—In March 2025, the Company entered into a 400.0 million Bangladeshi Taka (“BDT”) (approximately $3.3 million) term loan with a maturity date that is eight years from the date of the first draw thereunder (the “Bangladesh Term Loan”). On March 24, 2025, the Company borrowed 150.0 million BDT (approximately $1.2 million) under the Bangladesh Term Loan. The Bangladesh Term Loan bears interest at 13.50% per annum, subject to quarterly resets. Interest is payable quarterly. Any outstanding principal and accrued but unpaid interest will be due and payable in full at maturity. The Bangladesh Term Loan does not require amortization of principal and may be paid prior to maturity in whole or in part at the Company’s option without penalty or premium.

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- Definition The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481544/470-10-50-6 Reference 2: 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