SNMP OID lookup & decoder

Paste a dotted OID and get a plain-English, arc-by-arc breakdown of the MIB tree — which object it is, what it means, and which vendor owns it. Everything runs in your browser; nothing is sent to us.

Decode

What an OID actually is

An OID (object identifier) is a dotted path through a global tree, used by SNMP to name every readable value on a device. Each number is an arc; reading left to right walks from the root (1 = iso) down to a specific managed object — for example 1.3.6.1.2.1.1.5.0 is sysName.0, the device's hostname. A trailing .0 means a scalar (one value); other trailing numbers are table indexes (e.g. the interface number).

• 1.3.6.1.2.1 (mib-2) — the standard, vendor-neutral objects every SNMP device should support: system info, interfaces, IP, TCP, UDP.
• 1.3.6.1.4.1 (enterprises) — the vendor branch. The next number is an IANA Private Enterprise Number that identifies the manufacturer; everything below it is vendor-specific.

FAQ

What does this OID decoder do?
Paste a dotted OID like 1.3.6.1.2.1.1.5.0 and it walks the MIB tree arc by arc in plain English, naming the object (here sysName), what it means, and which vendor branch it falls under.

Can it identify the vendor from an enterprise OID?
Yes. For OIDs under 1.3.6.1.4.1 (enterprises) it reads the IANA Private Enterprise Number and names the manufacturer for the bundled vendors (Cisco, Juniper, Palo Alto, Fortinet, MikroTik and others).

What if my OID isn't in the bundled dictionary?
The decoder resolves the standard MIB-2 tree and common interfaces objects offline. For anything deeper or vendor-specific, it links straight out to full resolvers at oidref.com and oid-base.com.

Is this free and private?
Yes. It's free, needs no sign-up, and runs entirely in your browser from a bundled dictionary. The OID you enter is not sent to us or stored.

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