Planning For Your Success


$20.4 billion in funding over a ten-year period to support broadband networks in rural communities across the country.

Interested in learning how many locations in your service area are RDOF eligible and how much money could be available to you?


The Federal Communications Commission’s (FCC) Rural Digital Opportunity Fund (RDOF) is a federal funding program expected to allocate $20.4 billion over 10 years toward subsidizing rural broadband networks

The program is planned for implementation upon expiration of the Connect America Fund phase II (CAF-2) program in 2021, hence RDOF is also informally known as CAF-3.

Delivering Competitive Broadband

The RDOF seeks to encourage the deployment of networks that will stand the test of time, placing the highest value on those providing gigabit connections. It requires winning bidders in Phase I to offer the supported broadband and voice service to all eligible homes and small businesses within the awarded areas.

Structure and Schedule

The RDOF will target areas that lack access to 25/3 Mbps broadband services in two phases. During Phase 1 up to $16B will be auctioned for high-cost areas (census blocks) where there is no 25/3 Mbps service at all according to the Form 477 data. The Phase 1 auction will occur in 2020, with the subsidies commencing in 2021.


Interested in learning how many locations in your service area are RDOF eligible and how much money could be available to you? Contact us below for more info.

RDOF At-a-Glance

Reverse auction based, four performance tiers
[weighting on speed and latency]

6-Year Broadband Build Requirements

    40% 40% completion by end of year three of funding

    20% 20% for each subsequent year

    100% 100% complete by end of year six**

** Some additional time for construction is provided if the actual number of locations exceeds the FCC model’s number.

$20.4B over 10 years
in two Phases

Phase 1

$16B for census blocks unserved by 25/3 Mbps

Phase 2

$4.4B for unserved locations in partially served census blocks plus areas not won in Phase 1*

*The FCC indicated that it may revisit the Phase 2 budget after it has additional information gained from Phase 1.

Location Eligibility and Evaluating Bids

The FCC’s initial estimate is that approximately 6 million locations would be eligible for bidding in Phase 1 of the RDOF.

The map below provides an overview of bid-eligible locations for the 48 qualifying states, with over half having more than 100,000 locations eligible for Phase 1 funding.

RDOF Phase 1 Bid-Eligible Locations


Performance Tier Speed Monthly Usage Allowance Weight
Minimum ≥ 25/3 Mbps ≥ 250 GB or U.S. average, whichever is higher 50
Baseline ≥ 50/5 Mbps ≥ 250 GB or U.S. average, whichever is higher 35
Above Baseline ≥ 100/20 Mbps ≥ 2 TB 20
Gigabit ≥ 1 Gbps/500 Mbps ≥ 2 TB 0

Latency Requirement Weight
Low Latency ≤ 100 ms 0
High Latency ≤ 750 ms & MOS ≥ 4 40

ADTRAN Solutions for RDOF



Rapidly deploy broadband services at distances exceeding one mile, over existing copper infrastructure, with Vectored VDSL2 Super-Vectoring, and sealed Fiber-to-the-Node / Fiber-to-the-Cabinet (FTTN/FTTCab) solutions.




Fiber to the Home (FTTH) or Fiber to the Premises (FTTP) provide the highest levels of application access capacity by delivering fiber optics the entire way to the living unit.



Fixed Wireless Access

Compared to just a few years ago, microwave and mmWave solutions are so much more capable of supporting next generation residential broadband, premium enterprise and 5G mobile services delivery.


Global Services

Global Services

Complete, custom, turnkey system integration--planning, engineering, product, material, labor and project management for Inside Plant (ISP) and Outside Plant (OSP). ADTRAN leads the industry in CAF deployments with 10,000+ access nodes (over 1M homes passed).



ADTRAN is committed to helping every step of the way in pursuing RDOF support, beginning with technical assistance for the short-form application.

To ensure successful project planning and network rollouts, we have partnered with leading experts in bid strategy and project development, application preparation, network design planning, and countless other areas that provide the complete ecosystem of products and services needed to build a broadband network.