(1)	The most recent borrowings under the Revolving Loan Facility occurred in January 2019 and the most recent amendment on the Revolving Loan Facility was April 2019.

(2)	The earliest possible maturity under the Extension Amendment No. 1 entered into on April 3, 2019 is July 2020 and as a result, the Revolving Loan Facility is classified as current. See below for further details.

Term Loan Facility and Revolving Credit Facility

On May 6, 2015, ZGL and Zayo Capital, Inc. (“Zayo Capital”) entered into an Amendment and Restatement Agreement whereby the Credit Agreement (the “Credit Agreement”) governing their senior secured term loan facility (the “Term Loan Facility”) and $450.0 million senior secured revolving credit facility (the “Revolver”) was amended and restated in its entirety. The amended and restated Credit Agreement extended the maturity date of a portion of the outstanding term loans under the Term Loan Facility from July 2, 2019 to May 6, 2021, which was subsequently revised to January 19, 2021 in Incremental Amendment No. 2 (as defined and discussed below). The terms of the Term Loan Facility require the Company to make quarterly principal payments of 25 basis points per quarter of the original loan amount (unless reduced by any prepayments), plus an annual payment of up to 50% of excess cash flow, as determined in accordance with the Credit Agreement (no such annual payment was required during Fiscal 2020 or Fiscal 2019).

On January 19, 2017, ZGL and Zayo Capital entered into an Incremental Amendment No. 2 (the “Incremental Amendment”) to the Company’s Credit Agreement. Per the terms of the Incremental Amendment, the existing $1.85 billion of term loans under the Credit Agreement were repriced at 99.75% with one $500.0 million tranche that bears interest at a rate of LIBOR plus 2.0%, with a minimum LIBOR rate of 0.0% and a maturity date of four years from incurrence (January 19, 2021), which represents a downward adjustment of 75 basis points along with the lowering of the previous LIBOR floor, and a second $1.35 billion tranche (the “B-2 Term Loan” and along with the $500.0 million tranche, the “Refinancing Term Loans”) that bears interest at a rate of LIBOR plus 2.5%, with a minimum LIBOR rate of 1.0% and a maturity of seven years from incurrence, which represents a downward adjustment of 25 basis points. In addition, per the terms of the Incremental Amendment, ZGL and Zayo Capital added a new $650.0 million term loan tranche under the Credit Agreement (the “Electric Lightwave Incremental Term Loan”) that bears interest at LIBOR plus 2.5%, with a minimum LIBOR rate of 1.0%, with a maturity of seven years from the closing date of the Incremental Amendment. In connection with the Incremental Amendment, the full $2,500.0 million Term Loan Facility, including the Refinancing Term Loans and the Electric Lightwave Incremental Term Loan, was re-issued at a price of 99.75%. No other material terms of the Credit Agreement with respect to the Refinancing Term Loans and the Electric Lightwave Incremental Term Loan were amended. On April 10, 2017, $570.1 million of the B-2 Term Loan and the Electric Lightwave Incremental Term Loan was repaid from proceeds of issuance of senior unsecured notes as further discussed

below. Additionally, in July 2017, $310.7 million of the B-2 Term Loan was repaid from the proceeds of issuance of senior unsecured notes as further discussed below.

On July 20, 2017, ZGL and Zayo Capital entered into a second repricing (the “Repricing Amendment No. 2”) to the Credit Agreement. Per the terms of the Repricing Amendment No. 2, the outstanding balances of the B-2 Term Loan and Electric Lightwave Incremental Term Loan were repriced at par to bear interest at a rate of LIBOR plus 2.25%, with a minimum LIBOR rate of 1.0%, which represented a downward adjustment of 25 basis points. No other terms of the Credit Agreement were amended.

On December 22, 2017, ZGL and Zayo Capital entered into a third repricing amendment (the “Repricing Amendment No. 3”) to the Credit Agreement. Per the terms of the Repricing Amendment No. 3, the Revolver under the Credit Agreement was repriced to bear interest at a rate of LIBOR plus 1.00% to LIBOR plus 1.75% per annum based on the Company’s leverage ratio, which represented a downward adjustment of 100 basis points. No other terms of the Credit Agreement were amended. The Revolver matures on April 17, 2020, which was subsequently extended on April 3, 2019. Refer below for more information on the extension. The Credit Agreement also allows for letter of credit commitments of up to $50.0 million. The Revolver is subject to a fee per annum of 0.25% to 0.375% (based on ZGL’s current leverage ratio) of the weighted-average unused capacity, and the undrawn amount of outstanding letters of credit backed by the Revolver are subject to a 0.25% fee per annum. Outstanding letters of credit backed by the Revolver are subject to a fee of 1.00% to 1.75% per annum based upon ZGL’s leverage ratio.

On February 26, 2018, ZGL and Zayo Capital entered into an amendment to the Credit Agreement and the Company added a new $150 million term loan tranche under the Credit Agreement (the “Incremental $150 Million Term Loan”). The Incremental $150 Million Term Loan bears interest at LIBOR plus 2.25%, with a minimum LIBOR rate of 1.0%, with a maturity date of January 19, 2024, which is coterminous with the B-2 Term Loan. The Company used the proceeds of the Incremental $150 Million Term Loan for general corporate purposes, including the funding of acquisitions permitted under the Credit Agreement. No other terms of the Credit Agreement were amended.

On April 3, 2019, ZGL and Zayo Capital entered into Extension Amendment No. 1 to the Credit Agreement (the “Extension Amendment”) with respect to the Revolver. Under the terms of the Extension Amendment, the maturity date of the revolving credit facility was extended from April 17, 2020 to the earliest of (i) April 17, 2023, (ii) six months prior to the maturity date of the $500.0 million term loan tranche, which matures on January 19, 2021, subject to the refinancing thereof with debt having a maturity date no earlier than April 17, 2023 or repayment in full, and (iii) six months prior to the maturity date of the 2023 Unsecured Notes, which mature on April 1, 2023, subject to the refinancing thereof with debt having a maturity date no earlier than April 17, 2023 or repayment in full. As of September 30, 2019, the Company has reclassified the Revolver to current portion of long-term debt because July 2020 is the earliest possible maturity date under the Extension Amendment.

The weighted average interest rates (including margin) on the Term Loan Facility were approximately 4.2% and 4.6% at September 30, 2019 and June 30, 2019, respectively. The weighted average interest rates on the Revolver were approximately 3.8% and 4.2% at September 30, 2019 and June 30, 2019, respectively.

The Company had no borrowings under the Revolver during the three months ended September 30, 2019 and 2018. As of September 30, 2019, $125.0 million was outstanding under the Revolver and $1,756.8 million in aggregate principal amount was outstanding under the Term Loan Facility. Standby letters of credit were outstanding in the amount of $8.6 million as of September 30, 2019, leaving $316.4 million available under the Revolver, subject to certain conditions.

Senior Unsecured Notes

6.00% Senior Unsecured Notes due 2023

On January 23, 2015 and March 9, 2015, ZGL and Zayo Capital completed private offerings of aggregate principal amounts of $700.0 million and $730.0 million, respectively, of 6.00% senior unsecured notes due in 2023 (the “2023 Unsecured Notes”).

6.375% Senior Unsecured Notes due 2025

On April 14, 2016, ZGL and Zayo Capital completed a private offering of $550.0 million aggregate principal amount of 2025 Unsecured Notes (the “Incremental 2025 Notes”). The Incremental 2025 Notes were priced at 97.76% and were an additional issuance of the $350.0 million 6.375% senior unsecured notes due in 2025 that were originally issued on May 6, 2015 (the “2025 Notes” and together with the Incremental 2025 Notes, the “2025 Unsecured Notes”). The net proceeds from the Incremental 2025 Notes, plus cash on hand, were used to (i) redeem the then outstanding $325.6 million 10.125% senior unsecured notes due 2020, including the required $20.3 million make-whole premium and accrued interest, and (ii) repay $196.0 million of borrowings under the then outstanding secured Term Loan Facility.

5.75% Senior Unsecured Notes due 2027

On January 27, 2017, ZGL and Zayo Capital completed a private offering of $800.0 million aggregate principal amount of 5.75% senior unsecured notes due 2027 (the “January 2027 Notes”), which were issued at par. The net proceeds from the offering, along with the Electric Lightwave Incremental Term Loan discussed above, were used to fund the Electric Lightwave acquisition.

On April 10, 2017, the Company completed a private offering of $550.0 million aggregate principal amount of 5.75% senior unsecured notes due 2027 (the “Incremental 2027 Notes”). The Incremental 2027 Notes were an additional issuance of the January 2027 Notes and were priced at 104.0%. The net proceeds from the Incremental 2027 Notes were used to repay certain outstanding balances on the Company’s B-2 Term Loan.

On July 5, 2017, the Company completed a private offering of $300.0 million aggregate principal amount of 5.75% senior notes due 2027 (the “July Incremental 2027 Notes” and together with the Incremental 2027 Notes and the January 2027 Notes, the “2027 Unsecured Notes”). The July Incremental 2027 Notes were an additional issuance of the January 2027 Notes and Incremental 2027 Notes and were priced at 104.25%. The net proceeds of $310.7 million from the offering were used to further repay certain outstanding balances on the Company’s B-2 Term Loan.

Debt covenants

The indentures (the “Indentures”) governing the 2023 Unsecured Notes, the 2025 Unsecured Notes and the 2027 Unsecured Notes (collectively the “Notes”) contain covenants that, among other things, restrict the ability of ZGL and its subsidiaries to incur additional indebtedness and issue preferred stock, pay dividends or make other distributions with respect to any equity interests, make certain investments or other restricted payments, create liens, sell assets, incur restrictions on the ability of ZGL’s restricted subsidiaries to pay dividends or make other payments to ZGL, consolidate or merge with or into other companies or transfer all or substantially all of their assets, engage in transactions with affiliates, and enter into sale and leaseback transactions. The terms of the Indentures include customary events of default.

The Credit Agreement contains customary events of default, including among others, non-payment of principal, interest, or other amounts when due, inaccuracy of representations and warranties, breach of covenants, cross default to certain other indebtedness, insolvency or inability to pay debts, bankruptcy, or a change of control. The Credit Agreement also contains a covenant, applicable only to the Revolver, that ZGL maintain a senior secured leverage ratio below or equal to 5.25:1.00 at any time when the aggregate principal amount of loans outstanding under the Revolver is greater than 35% of the commitments under the Revolver. The Credit Agreement also requires ZGL and its subsidiaries to comply with customary affirmative and negative covenants, including covenants restricting the ability of ZGL and its subsidiaries, subject to specified exceptions, to incur additional indebtedness, make additional guaranties, incur additional liens on assets, or dispose of assets, pay dividends, or make other distributions, voluntarily prepay certain other indebtedness, enter into transactions with affiliated persons, make investments and amend the terms of certain other indebtedness.

The Indentures limit any increase in ZGL’s secured indebtedness (other than certain forms of secured indebtedness expressly permitted under the Indentures) to a pro forma secured debt ratio of 4.50 times ZGL’s previous quarter’s annualized modified EBITDA (as defined in the Indentures), and limit ZGL’s incurrence of additional indebtedness to a total indebtedness ratio of 6.00 times the previous quarter’s annualized modified EBITDA.

The Company was in compliance with all covenants associated with its debt agreements as of September 30, 2019.

Guarantees

The Notes are fully and unconditionally guaranteed, jointly and severally, on a senior unsecured basis by all of ZGL’s current and future domestic restricted subsidiaries. The Notes were co-issued with Zayo Capital, which does not have independent assets or operations.

The Term Loan Facility and Revolver are fully and unconditionally guaranteed, jointly and severally, on a senior secured basis by all of ZGL’s current and future domestic restricted subsidiaries.

Debt issuance costs

In connection with the Credit Agreement (and subsequent amendments thereto), and the various Notes offerings, the Company incurred debt issuance costs of $114.8 million (net of extinguishments). These costs are being amortized to interest expense over the respective terms of the underlying debt instruments using the effective interest method, unless extinguished earlier, at which time the related unamortized costs are to be immediately expensed.

The balance of debt issuance costs as of September 30, 2019 and June 30, 2019 was $47.6 million and $50.2 million, net of accumulated amortization of $67.3 million and $64.6 million, respectively. The amortization of debt issuance costs is included on the condensed consolidated statements of cash flows within non-cash interest expense along with the amortization or accretion of the premium and discount on the Company’s indebtedness. Interest expense associated with the amortization of debt issuance costs of $2.7 million and $2.5 million for the three months ended September 30, 2019 and 2018, respectively.

Debt issuance costs are presented in the condensed consolidated balance sheets as a reduction to long-term debt, non-current.