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noun

NOC

nok
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NOC (noun) means Network operations centre: the room or team that monitors a company's networks and servers around the clock and responds to outages. Example: “The NOC paged the on-call engineer when latency spiked.”

noun
1
technical Network operations centre: the room or team that monitors a company's networks and servers around the clock and responds to outages.
"The NOC paged the on-call engineer when latency spiked."
"She works night shifts in the NOC."
2
National Olympic Committee: the body in each country that selects and sends a team to the Olympic Games.
"Each NOC may enter a maximum of three athletes per event."
3
espionage Non-official cover: an intelligence officer working abroad without diplomatic protection, and so without immunity if caught.
"Agents under non-official cover, or NOCs, carry no diplomatic passport."
abbreviation
1
No objection certificate: a document from an employer, bank or authority stating that it has no objection to something the holder wishes to do. Widely used in India, Pakistan and the Gulf.
"The buyer needed an NOC from the housing society before the transfer."

How to use NOC

Learner’s notes

In plain EnglishThe team that watches a company's network day and night — or, elsewhere, a letter saying nobody objects.

When to use it

Written in capitals in all senses. Pronounced as a word, "nok", in IT and espionage use; spelled out in Olympic contexts.

Memory tip

In an IT job advert, NOC always means the network operations centre; if the topic is paperwork in India or the UAE, it means a no objection certificate.

Trace the full origin ↓
Easily confused with
SOC → NIC → NOCC
Common pairings
NOC engineer 24/7 NOC NOC and SOC apply for an NOC
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Fill the gap

Can you complete this real example?

The _____ paged the on-call engineer when latency spiked.

Etymology

An initialism whose expansion depends on field: network operations centre, National Olympic Committee, non-official cover, or no objection certificate.

Origin: English

Synonyms

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network operations centre operations centre

Frequently asked questions

What is the difference between a NOC and a SOC?
A network operations centre watches availability and performance — outages, latency, failing hardware. A security operations centre watches for threats: intrusions, malware and suspicious activity. Large organisations run both, sometimes in the same room.
What does a NOC engineer do?
They monitor dashboards and alerts for network and server health, triage incidents as they appear, carry out first-line fixes, and escalate anything they cannot resolve to specialist teams. The work is usually shift-based because the centre runs continuously.
What is an NOC letter?
A no objection certificate is a short signed statement that the issuer does not object to a specific action — an employee taking another job, a tenant subletting, a property being sold. It is a routine document in South Asian and Gulf paperwork and is often required before an application can proceed.
What is the meaning of NOC?
"NOC" (noun) means network operations centre: the room or team that monitors a company's networks and servers around the clock and responds to outages.