Disclaimer

Last updated 7 October 2026

General

Number Buffet is operated by Blue Skua LLC ("we", "us", "our") and is provided for education, design, software testing and entertainment. We make a genuine effort to be accurate and we cite our sources, but we give no warranty that any output or statement is correct, complete or current. Verify independently before relying on anything here.

Test identifiers

The test-data generators produce deliberately non-functional values for software development and QA:

• Phone numbers come only from ranges that national regulators — Ofcom in the UK, ACMA in Australia, NANPA and ATIS in North America — reserve for drama and testing. They are not connected to anyone. Never present them as a real contact number.
• Card numbers are the published test values that payment processors accept in sandbox mode only. They are structurally valid and will be declined by any real acquirer. They are not accounts and have no funds.
• IBANs, IMEIs, barcodes, ISBNs and serial numbers are format-valid with correct check digits, but correspond to no real account, device, product or publication.
• IP addresses default to the documentation ranges reserved by RFC 5737 and RFC 3849, and MAC addresses use the locally-administered bit so they cannot collide with a real vendor allocation.

Using any of these to deceive a person or a system may be a criminal offence. That is your responsibility, not ours.

Random numbers

Random generators are seeded and therefore reproducible, which is a feature for sharing and testing and a disqualification for anything security-sensitive. Do not use them for cryptographic keys, passwords, tokens, session identifiers or production unique IDs. Use your platform's cryptographic random source — crypto.getRandomValues() or crypto.randomUUID() in a browser — instead.

Lottery numbers

Lottery pickers produce combinations that conform to a draw's format. Every combination is equally likely and no picker, system or strategy improves your odds. Nothing here predicts a draw. If gambling is affecting you or someone you know, support is available in most countries — in the UK, BeGambleAware.

Numerology, angel numbers and lucky numbers

These pages document cultural and historical beliefs. Numerology has no scientific or empirical support, and nothing on those pages is a prediction or a statement of fact about your life. They are presented as cultural material, not guidance.

Not professional advice

Nothing on this site constitutes financial, investment, legal, medical, tax or other professional advice. The Fibonacci page mentions "Fibonacci retracement" because traders use it; that is a description of a convention, not an endorsement of it. Consult a qualified professional for decisions that matter.

External links and advertising

We link to third-party sources for verification and we display third-party advertising. We do not control and are not responsible for their content, accuracy or practices.

Questions

Found something wrong? Tell us — corrections are the fastest-moving item in our inbox.