Live auction
🇬🇧 +44 · Ofcom drama range
7700 900 000
- Current bid
- 1.25 ETH ≈ $4,078
- Ends in
- 04:11:58
- Bids
- 37
- Title
- ERC-721 #0x4c…9af1
Open marketplace
Six numbers people already remember
Every listing carries its numbering plan, its carrier of record, and the traits our grader found in it. These nine are drawn from the blocks regulators hold back for film and television — Ofcom's 07700 900xxx range and the North American 555-01xx range — so no listing here is anyone's real line. Live inventory arrives with the carrier connection.
🇬🇧 +44 · Ofcom drama rangePrime
7700 900 900
Buy now0.42 ETH
🇬🇧 +44 · London drama rangeSovereign
20 7946 0000
Buy now0.68 ETH
🇺🇸 +1 · NPA 415 fictionPrime
(415) 555-0123
Buy now0.35 ETH
🇬🇧 +44 · Ofcom drama rangeSovereign
7700 900 888
Top bid0.55 ETH
🇺🇸 +1 · Toll-free fictionRare
(800) 555-0100
Buy now0.12 ETH
🇺🇸 +1 · NPA 212 fictionPrime
(212) 555-0111
Buy now0.48 ETH
🇬🇧 +44 · Drama rangeRare
1632 960 000
Buy now0.18 ETH
🇺🇸 +1 · NPA 310 fictionRare
(310) 555-0199
Buy now0.26 ETH
🇬🇧 +44 · Ofcom drama rangePrime
7700 900 123
Top bid0.40 ETH
No listings with that trait right now — try another filter.
Pattern grader
Type a number. See what it's worth.
The same grader that scores every listing. It reads the national significant number, finds repeats, ladders, mirrors and zero-blocks, then prices against the carrier floor.
Digits only — country code is set by the carrier block you list under.
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Estimated floor
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From SIM to title
Four steps, one of them irreversible
Ownership only means something if the number can actually leave. Every Phonex title ends where it started: at a carrier, in your name.
STEP 01
Verify
You prove control of the MSISDN with a one-time code. Phonex reads the number's carrier of record and its numbering plan.
STEP 02
Escrow
A licensed carrier partner places a portability lock on the line. The number can't be ported out except by the title holder.
STEP 03
Mint
The title is issued as an ERC-721 on Robinhood Chain. Metadata records the E.164 string, country code, graded traits and escrow agent.
STEP 04
Trade or port
Sell, bid, or burn the title to release the lock and port the number to any carrier with a signed LOA. Burning is final.
Trait taxonomy
What makes a number expensive
Multiples are against the carrier floor — what an ordinary number in the same block sells for. Traits stack, but the strongest one dominates the grade.
| Trait | Definition | Example | Floor multiple |
|---|---|---|---|
| Hexa-repeat | Six or more identical digits in a run | 58 888 8888 | 40× |
| Short code | Six digits or fewer, nationally dialable | 12 34 56 | 25× |
| Golden-8 | Four or more eights, no fours anywhere | 8888 0000 | 15× |
| Ladder | Run of five or more consecutive digits | 90 1234 5678 | 12× |
| Zero-block | Three or more trailing or interior zeros | (212) 000-0001 | 10× |
| Quad | Four identical digits in a run | 22 22 22 22 | 8× |
| Mirror | Last six digits read the same in reverse | 9 177 1719 | 6× |
| Vanity | Keypad-maps to a word of five letters or more | (888) 4-CRYPTO | 5× |
Blocks reserved by regulators never reach the market: Ofcom's 07700 900xxx range and the North American 555-01xx range exist for film and television, and Phonex rejects them at verification. Numbers carrying tetraphobic digits are graded down in markets where a four reads as unlucky.
Title, not tenancy
What you actually own
The title
A transferable token that names one E.164 number and one escrow agent. Transfer the token and the right to the number moves with it — no support ticket, no account transfer form.
The exit
The right to port out on demand. Burn the title, sign the LOA, and the number lands at the carrier of your choice. Nobody at Phonex can hold it back.
The upside
Resale at whatever the market pays, with a 2% royalty routed back to whoever first put the number on-chain. Rented numbers never paid anyone but the carrier.
Your Number.
Your Asset.
Bring the number you already have, or take one nobody forgets.