3G2 Metadata Viewer
Inspect GPS tags, device identifiers, and encoder/carrier notes from 3G2 videos.
Drag & drop a file here, or click to select
Max file size: 100 MB
Looking to remove metadata instead? Go to the Metadata Remover.
Why view 3G2 metadata?
Checking 3G2 metadata helps you protect privacy, verify authenticity, and understand how the file was created.
Protect privacy
Spot GPS, author, or device fingerprints in your 3G2 before sharing.
Verify authenticity
Check timestamps, software, and edit trails to see if a 3G2 is original or altered.
Work faster
Grab technical details at a glance so you can export and deliver your 3G2 with confidence.
Preview the report layout
See how we surface EXIF, PDF, and video metadata before you upload your own file.
Example Metadata Report
After uploading, you'll get a detailed breakdown of your file's hidden data, similar to the example below.
Want to check your own file's metadata? Upload it above - no signup required.
Our secure process
We show you exactly what happens when you upload a file, so you know where your data goes and what stays untouched.
Upload over HTTPS
Pick or drop your 3G2. Transfers are secure.
Parse metadata only
We read headers and metadata blocks; the file content is not changed or recompressed.
Highlight key signals
We group timestamps, authorship, location, and technical fields so you can spot what matters quickly.
Display readable results
You see structured metadata grouped by sections for fast review with no downloads required.
Delete temporary copy
The transient server copy is purged right after processing completes.
Want to try it out? Upload your file above, no signup required.
What 3G2 metadata can you view?
Here are the fields you can inspect before you share or archive the file. Use them to verify provenance, quality, and privacy.
- GPS and timestamp tags plus device/carrier identifiers
- Codec, bitrate, and resolution from CDMA phone recordings
- Encoder/software hints from messaging and MMS workflows
What metadata lives inside a 3G2
3G2 is the CDMA counterpart to 3GP — defined by 3GPP2 for CDMA2000 networks used by Verizon, Sprint, US Cellular, and Korean/Japanese CDMA operators in the 2000s. The file structure is nearly identical to 3GP (ISO Base Media) but uses the `3g2a`, `3g2b`, `3g2c` brands instead of `3gp*`, and adds CDMA-specific codec support (notably QCELP and EVRC voice codecs that 3GP does not use).
CDMA carriers were notorious for injecting carrier-specific metadata. Verizon's V-CAST pipeline wrote udta entries identifying the DRM policy and carrier ID. Sprint and US Cellular pipelines often embedded a customer handset ID in meta/ilst. Korean carriers (SK Telecom, KT) frequently wrote user-facing Korean title strings into udta/tnam. These signals are invisible to most modern tools but survive in archived files and forensic evidence. The viewer surfaces them with atom paths so you can tell whether a file came from a specific carrier's MMS pipeline.
Technical metadata follows the same mvhd/trak/stsd pattern as 3GP. QCELP (`sqcp`) and EVRC (`sevr`) are the defining audio codec FourCCs — if you see them, the file is almost certainly from a CDMA handset. Video is typically H.263 or MPEG-4 Part 2 at small resolutions. The viewer decodes the stsd sample entry, shows the codec name, and flags when DRM metadata is present so you know before downstream processing.
3G2 metadata FAQs
How is 3G2 different from 3GP?
3G2 is the CDMA variant (3GPP2) and 3GP is the GSM variant (3GPP). The container is the same but 3G2 adds CDMA-specific audio codecs (QCELP, EVRC) and carrier-specific udta vocabulary.
What is QCELP and why does it matter?
QCELP is a CDMA voice codec. Its presence in an audio stream (FourCC `sqcp`) almost always identifies the file as coming from a CDMA handset or MMS pipeline. The viewer decodes the codec FourCC so you can spot this without specialized tools.
Can 3G2 store GPS?
Yes — the same udta/loci atom used by 3GP carries GPS in 3G2. CDMA handsets from circa 2008 onward commonly wrote GPS when location services were enabled.
How do I identify the carrier of a 3G2 file?
meta/ilst often has carrier-specific entries (Verizon V-CAST DRM flags, Sprint handset IDs). The viewer surfaces the atom path and the decoded string so you can match against known carrier patterns.
Can modern players still handle 3G2?
VLC and FFmpeg handle 3G2 with QCELP support compiled in. Browser players do not. The viewer lists the codecs in use so you can tell whether a conversion is straightforward or needs a custom FFmpeg build.