XO 200$B in Corning fiber optic cable implies $4-7B in total cost. Verizon April 21 commitment to the huge fiber buy implies a much larger network build.  The actual fiber is almost always less than 30% of the total cost and sometimes < 10%. This should cover more than 100,000 miles of network. 

Verizon just spent $1.8B to purchase XO and 20,000 miles of fiber around the country (map on left and larger below.) They have massive amounts of fiber in place in their territory, ~25% of the U.S. They also have extensive fiber to support their nationwide and international long distance network.

This fiber will reduce the annual cost of their 25,000-40,000 wireless towers out of district. It will also give VZ a great deal of leverage with the tower companies. Verizon intends at least some Massive MIMO and mmWave from existing towers, which normally involves an expensive amendment to the lease. With fiber in place, the cost of supporting their own towers will come down, both through negotiations and savings in backhaul.  They can credibly threaten to replace purchased services with their own facilities along the fiber route. There's also no reason they couldn't pick up lucrative backhaul contracts from other wireless carriers. 

Verizon earns $3B in annual revenues from businesses. XO brings them 4,000 buildings on net. The new fiber will pass 10,000's of thousands more. Business revenue has been falling as cable jumps in to the market. Having more fiber can change that. 

Despite those savings, spending that much on new fiber wouldn't make sense unless the 5G mmWave build is on.

Here's the XO map and then the press release with Corning.

XO 650

Verizon agrees to $1.05 billion three-year minimum purchase agreement with Corning for next-generation optical solutions

NEW YORK – Verizon Communications Inc. (NYSE, Nasdaq: VZ) today announced a three-year minimum purchase agreement with Corning Incorporated (NYSE: GLW) to provide fiber optic cable and associated hardware for Verizon to ensure critical coverage and capacity for its nationwide wireless broadband network.

The agreement calls for Corning to provide and Verizon to purchase up to 20 million kilometers (12.4 million miles) of optical fiber each year from 2018 through 2020, with a minimum purchase commitment of $1.05 billion.

Verizon has been reinventing its network architecture around a next-generation fiber platform that will support all of the company’s businesses. This new architecture is designed to improve Verizon’s 4G LTE coverage, speed the deployment of 5G, and deliver high-speed broadband to homes and businesses of all sizes.

Roger Gurnani, Verizon’s chief information and technology architect, commented, “Corning’s unique combination of capabilities delivers solutions that provide us with performance and cost advantages as we continue to expand our network coverage and capacity.”

In an initial deployment, Verizon launched One Fiber in Boston in 2016 and plans to invest $300 million over six years to deploy it throughout the city.

Viju Menon, Verizon’s chief supply chain officer, said: “Our plans identified a shortfall in fiber supply, and Verizon has been working with business teams to forecast demand and fill supply gaps with existing suppliers. Securing the required volume of optical fiber and hardware solutions with Corning will ensure we meet our planned rollout schedules.”

Clark Kinlin, executive vice president, Corning Incorporated, said: “We are pleased that Verizon recognizes the value of Corning’s innovative solutions in deploying next-generation converged optical infrastructure, such as One Fiber, more quickly and cost effectively. Verizon’s purchase commitment supports necessary capacity investments across our manufacturing footprint.”

Over the past several months, Corning has announced plans to expand capacity and to invest more than $250 million in its optical fiber, cable and solutions manufacturing facilities to help meet the demand of its global carrier and enterprise customers. Corning expects these capacity expansions to begin to come online in 2017 and become fully operational in 2018.

dave ask

Newsfeed

The 3.3-4.2 spectrum should be shared, not exclusively used by one company, concludes an important U.S. Defense Innovation Board report. If more wireless broadband is important, sharing is of course right because shared networks can yield far more

It does work! Verizon's mmWave tests over a gigabit in the real world. 
The $669 OnePlus 7 Pro outclasses the best Apples and probably the new Galaxy 10 or Huawei P30 Pro. Optical zoom, three cameras, liquid cooling, Qualcomm 855 and more.
Korea at 400,000 5G May 15. Chinese "pre-commercial" signing customers, 60,000-120,000 base stations in 2019, million+ remarkable soon. 
5G phones Huawei Mate 20, Samsung Galaxy 10, ZTE Nubia, LG V50, and OPPO are all on sale at China Unicom. All cost US$1,000 to 1,500 before subsidy. Xiaomi promises US$600.
Natural monopoly? Vodafone & Telecom Italia to share 5G, invite all other companies to join.
Huawei predicts 5G phones for US$200 in 2021, $300 even earlier
NY Times says "5G is dangerous" is a Russian plot. Really.
Althiostar raised US$114 million for a virtual RAN system in the cloud. Rakuten, Japan's new #4, is using it and invested.
Ireland is proposing a US$3 billion subsidy for rural fibre that will be much too expensive. Politics.
Telefonica Brazil has 9M FTTH homes passed and will add 6M more within two years. Adjusted for population, that's more than the U.S. The CEO publicly urged other carriers to raise prices together.
CableLabs and Cisco have developed Low Latency XHaul (LLX) with 5-15 ms latency for 5G backhaul,  U.S. cable is soon to come in very strong in wireless. Details 
Korea Telecom won 100,000 5G customers in the first month. SK & LG added 150,000 more. KT has 37,500 cells. planning 90% of the country by yearend. 
The Chinese giants expect 60,000 to 90,000 5G cells by the end of 2019.
China Telecom's Yang Xin warns, "Real large-scale deployment of operators' edge computing may be after 2021." Customers are hard to find.
Reliance Jio registered 97.5% 4G availability across India in Open Signal testing. Best in world.

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Welcome On Oct 1, 2019 Verizon turned on the first $20B 5G mmWave network with extraordinary hopes. The actual early results have been dismal. Good engineers tell me that will change. Meanwhile, the hype is unreal. Time for reporting closer to the truth.

The estimates you hear about 5G costs are wildly exaggerated. Verizon is building the most advanced wireless network while reducing capex. Deutsche Telekom and Orange/France Telecom also confirm they won't raise capex.

Massive MIMO in either 4G or "5G" can increase capacity 3X to 7X, including putting 2.3 GHz to 4.2 GHz to use. Carrier Aggregation, 256 QAM, and other tools double and triple that. Verizon sees cost/bit dropping 40% per year.

Cisco & others see traffic growth slowing to 30%/year or less.  I infer overcapacity almost everywhere.  

Believe it or not, 80% of 5G (mid-band) for several years will be slower than good 4G, which is more developed.