Summary

  • A registered IPv4 block is transferable, but only to a recipient that satisfies ARIN's demonstration-of-need conditions, so its value cannot be separated from an operating network that can justify the addresses.
  • Zayo Group, LLC has a distinct ARIN organisation handle and a 2020 take-private financed with senior secured notes and a term loan B facility; no public transfer listing naming the company as recipient and no published Zayo-specific address count appears in the record reviewed here.

Every distressed-asset argument for internet addresses begins with the same move: multiply the blocks by a price and declare the result an overlooked line item. That move is wrong for a specific, written, checkable reason. The American Registry for Internet Numbers does not let an address block move to whoever pays the most. It lets the block move to whoever can prove they will use it. A buyer without traffic has nothing to prove, and therefore nothing to buy.

The consequence for a leveraged fibre operator is not a valuation nuance. It is the difference between an asset and a permission. Permissions can be exercised, and they can be lost. They do not go in a borrowing base.

What ARIN actually wrote down

ARIN's transfer page is unusually direct about who qualifies. In the section covering specified-recipient transfers inside the ARIN region, the registry states the rule in one sentence: "The recipients must meet the transfer requirements as defined in NRPM Section 8.5. The resources transferred will be subject to current ARIN policies." (https://www.arin.net/resources/registry/transfers/)

That sentence is short, and it carries the whole structure of the market. Section 8 of the Number Resource Policy Manual sets out the channels through which a registered block can change hands: Section 8.2 for transfers connected with mergers and acquisitions, Section 8.3 for specified-recipient transfers within the ARIN region, and Section 8.5 for what a recipient must demonstrate. The channels matter because they are the only doors. A block that does not fit a channel does not move, no matter what a spreadsheet says it is worth.

Then come the conditions, and they are quantitative. The minimum IPv4 transfer size is a /24. A recipient without existing allocations may qualify for an initial /24. Anything larger requires documentation showing that fifty percent of the requested IPv4 addresses will be in use within twenty-four months, and that fifty percent of the sum of all previous IPv4 allocations the recipient holds is efficiently used. (https://www.arin.net/resources/registry/transfers/)

Read that again as a financier rather than as a network engineer. The floor is small, which means the instrument is not sized for a fund. The use test is a deadline, which means an unused block is a depreciating permission. The efficiency test reaches backwards across every earlier allocation the buyer holds, which means the buyer's own history is collateral for the next purchase. None of these conditions is a price discovery mechanism. All of them are a filter on who is allowed to bid.

A permission is not a warehouse receipt

The instinct behind address-count arithmetic is that a registered block behaves like a warehouse receipt: someone holds it, someone else can take delivery, and the intervening party's balance sheet is irrelevant. ARIN's conditions break that chain at the point of delivery. Delivery requires a recipient with demonstrated need, documented utilisation, and a credible plan to light up half the block inside two years.

That changes the shape of the value. A warehouse receipt is worth what the commodity is worth, full stop. An address block is worth what it is worth to a network that can absorb it — a network whose growth, customer base and routing already require the addresses. The buyer set is therefore not "everyone with dollars". It is the much smaller set of operators whose own traffic justifies the request, and whose prior allocation history is clean enough to survive the efficiency test.

This is why the scarcity story and the asset story are not the same story. Scarcity explains why blocks fetch real money in transfers between operating networks. Scarcity does not convert a block into a liquid instrument, because liquidity needs a buyer who can appear on demand, and the policy requires a buyer who can prove need on demand. When need is the entry ticket, the price is set inside the industry rather than outside it.

Where Zayo sits in that structure

Zayo's registry identity is concrete and public. The ARIN RDAP registry carries the organisation handle ZAYOG-1 for Zayo Group, LLC, registered at 1805 29th Street, Suite 2050, Boulder, Colorado 80301. (https://rdap.arin.net/registry/entity/ZAYOG-1) That record establishes something narrow and important: a named legal entity holds a distinct registry identity. It does not establish how many addresses hang beneath that handle, and no honest reading of an RDAP entity record will tell you.

This is the point at which most commentary substitutes a number for a mechanism. A handle exists; therefore a portfolio exists; therefore a value exists. The registry supports the first clause only. Blocks are registered to organisations, and the transfer rules are administered against those organisations, which means the relevant unit of analysis is the entity that can appear as a recipient — not the marketing footprint, not the press release, not the route map.

The 2020 structure, and why it matters here

Zayo Group Holdings, Inc. was taken private by Digital Colony and EQT Infrastructure, and the transaction closed in March 2020. (https://www.zayo.com/newsroom/digital-colony-and-eqt-infrastructure-complete-acquisition-of-zayo/) The financing used in connection with that take-private included senior secured notes and a term loan B facility. (https://www.sec.gov/Archives/edgar/data/1640090/000119312520063255/d874558dex991.htm) Two distinct legal persons sit behind those statements, and the difference is not administrative trivia: Zayo Group, LLC is the entity carrying the ARIN handle ZAYOG-1, while Zayo Group Holdings, Inc. is the entity that was acquired and financed in 2020, with Digital Colony and EQT Infrastructure as the acquiring owners.

The significance is structural. A leveraged take-private puts a specific claim in front of every asset conversation: does this thing help service the notes, or does it not? Senior secured notes and a term loan are secured on what the borrower can pledge, and the lenders' recovery analysis runs through assets that can be sold or assigned to a buyer who will pay cash. An address block passes that test only if a buyer can exist. ARIN's conditions say the buyer must be an operator with demonstrated need and efficient prior use.

The pool of such buyers is real, but it is not a market that clears on a Tuesday afternoon, and it is not available to a creditor executing a remedy.

The limit in the record

One evidentiary boundary belongs beside the claim rather than at the end of the article. No public ARIN transfer listing naming Zayo Group, LLC as a recipient, and no published Zayo-specific IPv4 holding count, appears in the record reviewed for this piece. That absence is not evidence that Zayo holds nothing or has transferred nothing. It means the size of the position cannot be established from what is publicly readable, which is itself the finding to carry forward.

Because of that, no figure appears anywhere in this article. There is no block count, no address total, no implied price, and no debt number beyond the instrument types the 2020 filing identifies. Anyone quoting a specific Zayo address count against a specific market price is quoting an arithmetic that the registry's own rules do not support — not because the count is wrong, but because multiplication is the wrong operation.

Why the omission from leverage metrics is correct

Here is the uncomfortable part for the people who want the position to be a hidden asset. A credit analyst who leaves registered addresses out of a fibre operator's leverage discussion is not being lazy. They are reading the instrument correctly.

An asset enters a leverage conversation when it can do one of a short list of things: generate cash, be pledged as collateral, or be sold in a resolution scenario. Under ARIN's rules a block can do the first only through the network that uses it, can be pledged only to the extent a lender could realise it, and can be sold only to a recipient that can satisfy Section 8.5. Each path runs back through the operating business. The block's value is therefore already reflected, obliquely, in the thing everyone does measure: whether the network is filling up with traffic and customers who justify the addresses it holds.

That is the inversion worth stating plainly. Address holdings are not an asset that the fibre metrics omit; they are a derivative of the fibre metrics. Where the network grows and utilisation rises, the permission becomes more valuable because the demonstration of need becomes easier to make. Where utilisation stalls, the permission becomes harder to renew and harder to transfer, because the efficiency test now works against the holder. A block is not a store of value. It is a claim on future justification.

What would change the answer

Three observable developments would move this from a mechanism argument to a specific valuation argument, and each is publicly checkable.

A dated ARIN transfer listing or approval entry naming Zayo Group, LLC or a named Zayo subsidiary as recipient would show the company actively exercising the permission — using the transfer market to consolidate or reshape its registry position. That is a state difference, and it would justify a fresh valuation discussion.

A published Zayo-specific address count would replace inference with measurement, and would let the Section 8.5 utilisation conditions be tested against a real denominator rather than asserted.

A change to the Section 8.5 conditions themselves — a revised use test, a different floor, a changed efficiency standard — would reprice every permission in the registry at once, in the same direction for every holder. Policy changes at ARIN run through a public process, so that signal arrives with notice.

Until one of those appears, the correct reading of a large fibre operator's registry position is that it is a governance-conditional entitlement attached to an operating network. Valuable, yes. Separable, no. And in a capital structure built on notes and a term loan, separability is the only property that pays.

The conclusion that survives the arithmetic

Zayo's address position is not a hidden asset waiting to be found by an analyst with a price feed. It is a permission held by an operating company, granted and administered on the condition that the company keeps using it. The 2020 take-private, with its senior secured notes and term loan B, put that permission inside a leveraged structure where only separable assets improve recovery. The registry's own rules keep it inseparable.

That is a less exciting story than an overlooked balance-sheet line. It is also the one the policy text supports. The next person who wants to add a fibre company's IP count to its enterprise value should first read Section 8.5, then explain who the buyer would be, what need that buyer would document, and how half the block would be in use within twenty-four months. If those three answers are not available, the arithmetic was never the analysis. https://btw.media/en/directory/zayo-group-llc-us