Mainstream Fiber Networks' EIN is 20-2035890.
Download the official 2024 Form 5500 (PDF) for Mainstream Fiber Networks from the U.S. Department of Labor's EFAST2 system.
Download the official 2024 Form 5500 (PDF)Mainstream Fiber Networks' plan includes life insurance.
The Schedule of Assets is filed as a free-form PDF attachment on EFAST2; we parse these offline and coverage is partial (priority is the largest plans by EOY assets). This plan also reports no pooled (Schedule D) interests, so its holdings aren’t hidden on a master-trust filing. The line-item data lives on DOL EFAST2 under the same ACK_ID.
See Methodology > Data linkages for how Form 5500 / Schedule H / Schedule D / Schedule of Assets fit together.
