NOTAM history lookup

What is NOTAM history?

NOTAM history is the record of aeronautical notices that were valid on a given date at a given ICAO location. Unlike a database of every NOTAM ever issued globally, a history lookup typically returns the active set — all NOTAMs that were in force at the moment you specify — which is what investigators and lawyers most often need.

The term is easily confused with the product name NOTAM History. Throughout this site, "NOTAM history lookup" refers to the activity; NOTAM History refers to the notamhistory.com service that performs archive queries by ICAO and date.

Three inputs for a lookup

These inputs mirror how professionals frame retrospective questions: where, when, and sometimes which specific notice. The archive returns matching data from structured provider storage, delivered by email in ICAO plain-text format.

1. ICAO 4-letter code — aerodrome (for example EGLL) or FIR (for example EGTT)
2. Historical validity date — up to approximately two years in the past
3. Optional: specific NOTAM identifier (series and number, for example C0123/24)

When briefing tools are not enough

EFB applications, airline dispatch systems, and FAA NOTAM Search excel at current operational briefing. They are not designed to reproduce the full NOTAM set from a date weeks or months ago. When a pilot, dispatcher, or investigator asks "what was published then," an archive lookup is required.

NOTAM History fills that gap for occasional and regular professional users. It does not replace approved briefing for live operations. Compare current vs historical NOTAMs to choose the right tool for your question.

Practical workflow

Define the ICAO location and UTC-relevant date for your case. If flight documentation references a specific NOTAM number, add it to narrow results. Complete checkout — one-off, subscription, or top-up — and retain the emailed archive output with your investigation or claims file.

Logged-in users can revisit past searches in My account. For pricing details, see pricing. For regional examples, see NOTAMs by airport ICAO and NOTAMs by FIR.

Common lookup mistakes to avoid

Selecting the wrong UTC date relative to validity windows is the most frequent error in retrospective NOTAM work. Align your archive date with the investigative question — often the departure date in UTC, but night operations may span calendar boundaries.

Confusing IATA three-letter codes with ICAO four-letter codes produces empty or incorrect queries. NOTAM History requires ICAO aerodrome or FIR identifiers (EHAM, not AMS).

Expecting live briefing tools to substitute for archive lookup after an event leads to evidence gaps. Document the archive path in company SMS and legal hold procedures so teams retrieve historical NOTAMs promptly.

Professional use summary

NOTAM History delivers archived NOTAMs by ICAO aerodrome or FIR and historical validity date, with approximately two years of archive depth via professional aviation data APIs. Pricing: €9.99 one-off, €29.99/year (ten searches), €29.99 top-up. Email output uses ICAO plain-text format for investigators, lawyers, insurers, safety officers, and operators. Not for pre-flight briefing — use FAA NOTAM Search or approved operator systems for current US and international operations before flight.

NOTAM History queries professional archive APIs by 4-letter ICAO aerodrome or FIR code and historical validity date, returning ICAO plain-text NOTAM output by email within seconds. Archive depth is approximately two years where supported. Pricing is €9.99 per one-off search, €29.99 per year including ten searches, or €29.99 top-up packs. The service is designed for investigators, aviation lawyers, insurers, safety officers, and operators who need expired NOTAMs no longer shown on FAA NOTAM Search or briefing apps — and is not for pre-flight operational briefing.