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Financial research concept

Tower Core Leasing Activity

measures recurring site-rental growth from tenant additions and renewals or extensions while excluding selected accounting and non-recurring items.

By Lee BaileyPublished Sep 29, 2026
Research context

See what supports this page, how current it is, and where comparable or historical context is available.

Research date
Sep 29, 2026Use the dated article and cited sources for the definition, examples, and stated limitations.
Operating-model context
10 connected conceptsPart of the reviewed Wireless Tower Leasing Economics; issuer definitions remain distinct where disclosed.
Company examples
1 reviewed companyRelationships reflect supported examples, not a normalized cross-company KPI ranking.
  1. Core leasing isolates the commercial work being done
  2. It is issuer-defined, not an industry standard
  3. Part of the Wireless Tower Leasing Economics
  4. See It in Company Research
  5. Continue Research

Tower core leasing activity is Crown Castle's measure of site-rental revenue growth from tenant additions and renewals or extensions of tenant contracts after excluding selected accounting and non-recurring items.

Crown Castle reported $15M of core leasing activity in the second quarter of 2026, equal to 1.7% of the relevant prior-period site rental billings.

Core leasing isolates the commercial work being done

The measure excludes straight-line revenue, prepaid-rent amortization, other revenues, and specified DISH termination amounts. That leaves a cleaner view of new tenant additions plus renewals and extensions.

It therefore complements contractual rent escalators, which Crown Castle reports separately.

It is issuer-defined, not an industry standard

American Tower uses a colocations/amendments bridge rather than Crown Castle's exact label. SBA describes organic leasing through new leases and amendments but does not publish the same reconciliation.

Investors should not rename every peer's leasing activity "core leasing" and combine it mechanically. Use the issuer definition, then compare the economic role inside organic tenant billings growth and against tenant churn.

Primary sources: Crown Castle second-quarter 2026 results and Crown Castle 2025 Form 10-K.

Part of the Wireless Tower Leasing Economics

Connects recurring tower tenant billings with existing-site leasing, contract escalators, churn, new-site contribution, accounting normalization, site-level cash margins, and recurring maintenance intensity.

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Where this concept fits
  • Existing-site leasing, escalators, and churnCurrent relationship
    Colocations and amendments add recurring billings to existing towers, contractual escalators lift rates on leases already in place, and churn removes billings through cancellations, non-renewals, or repricing. Core leasing activity and organic tenant billings growth summarize different issuer-defined views of that same operating engine.
    Colocation & Amendment BillingsTower Rent EscalatorsTower Core Leasing ActivityCurrent conceptOrganic Tower Billings GrowthTower Tenant Churn
  • Recurring billings, new sites, and accounting presentation
    Tenant billings capture recurring contractual lease economics, new-site tenant billings isolate the day-one contribution from constructed or acquired sites, and site-rental billings versus GAAP revenue separates the operating lease base from straight-line and other accounting effects.
    New-Site Tenant BillingsTower Billings vs. GAAP RevenueTower Tenant Billings
  • Site-level cash economics and reinvestment
    Tower cash flow margin shows the high site-level profitability of the leasing model after direct tower operating costs, while maintenance capex shows the recurring physical reinvestment needed to keep the installed infrastructure productive.
    Tower Cash Flow MarginTower Maintenance Capex

See It in Company Research

These companies are examples of how the concept is reported or discussed in public filings. Definitions can differ by issuer; these links open company research rather than a normalized metric comparison.

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Compare core tower leasing

Compare tenant additions and renewals using issuer-defined recurring leasing measures rather than forcing unlike peer KPIs into one series.

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