Studio code prefixes map to the label that issued a release. SNOS and SONE belong to S1 No.1 Style, IPZZ to IdeaPocket, MIDA to MOODYZ, ABF to PRESTIGE, START to SOD Create, and MFYD to Tameike Goro. Most labels own several prefixes — one currently receiving numbers, the rest retired but still valid for their back catalogue.

This page is organised by label, because that is how prefixes are actually allocated. If you have a prefix and want to look it up alphabetically instead, use the A–M and N–Z lookup tables, which cover the same material in prefix order.

How do you read this table?

Each row is a prefix; each group is a label; Status says whether that prefix is still receiving new numbers.

  • Current — new releases are still being numbered under this prefix
  • Retired — the back catalogue is intact, but no new numbers are issued
  • A blank status means we have not confirmed which, and we would rather say so

A retired prefix is not a dead code. SSNI-500 resolves exactly as well today as it did on release. What retirement means is that a serial beyond the last issued number will never exist, which is a common cause of a failed lookup — see codes from studios that no longer release.

Which prefixes belong to the major single-performer labels?

These are the labels whose lines are built around individually contracted performers, and they rotate prefixes most visibly.

Label Prefix Status
S1 No.1 Style SNOS Current
S1 No.1 Style SONE Retired
S1 No.1 Style SSIS Retired
S1 No.1 Style SSNI Retired
S1 No.1 Style SNIS Retired
S1 No.1 Style SOE Retired
S1 No.1 Style (compilations) OFJE Current
S1 No.1 Style (VR) SIVR Current
IdeaPocket IPZZ Current
IdeaPocket IPX Retired
IdeaPocket IPZ Retired
IdeaPocket IPTD Retired
IdeaPocket (compilations) IDBD Retired
MOODYZ MIDA Current
MOODYZ MIDV Retired
MOODYZ MIDE Retired
MOODYZ MIDD Retired
MOODYZ MIAB Current
MOODYZ MIAA Retired
MOODYZ MIFD Current
MOODYZ MIMK Current
MOODYZ (compilations) MIZD Current
PRESTIGE ABF Current
PRESTIGE ABW Retired
PRESTIGE ABP Retired
kawaii* CAWB Current
kawaii* CAWD Retired
kawaii* KAWD Retired
kawaii* (compilations) KWBD Current
FALENO FNS Current
FALENO FSDSS Retired

Attribution and status checked 2026-08-03 against each label's own release listing and against FANZA product records. Several of these rotated recently: SONE closed at 998 in November 2025 and S1's numbering continues under SNOS; MIDV closed at 999 in December 2024 and MOODYZ continues under MIDA; CAWD reached 999 in August 2026 with CAWB already running alongside it.

The pattern to notice: within a label, prefixes usually share letters with their predecessor (SSNI → SSIS, IPX → IPZZ, ABW → ABF). That similarity is deliberate branding and also a trap — a one-letter difference is a different line, not a variant of the same release.

Which prefixes belong to the married-woman and mature labels?

This group is unusually stable, and several of these prefixes have run for a long time without rotation.

Label Prefix Status
Madonna JUR Current
Madonna JUQ Retired
Madonna JUL Retired
Madonna JUY Retired
Madonna JUX Retired
Madonna (MONROE line) ROE Current
Madonna URE Current
Fitch JUFE Current
Fitch JUFD Retired
Tameike Goro MFYD Current
Tameike Goro MEYD Retired
Venus VENX Current
Venus VENU Retired
Nagae Style NSFS Current
Nagae Style NSPS Retired
Premium PRED Current

Checked 2026-08-03. URE and ROE are the two most often mis-filed: both are Madonna, listed on Madonna's own catalogue and carrying Madonna as the maker in FANZA's records, with ROE running as the label's MONROE line. Both were still receiving numbers in mid-2026.

The JU- family is worth memorising as a group. Seven of the prefixes above start with JU, split across two labels, which is the most common source of mis-attribution in published prefix lists.

Which prefixes belong to the drama and specialist labels?

Label Prefix Status
Attackers ADN Current
Attackers ATID Current
Attackers RBK Current
Attackers JBD Current
Attackers SHKD Retired
Attackers RBD Retired
Attackers SSPD
E-BODY EBWH Current
E-BODY EBOD Retired
OPPAI PPPE Current
OPPAI PPPD Retired
Das! DSOD Current
Das! DASS Retired
Das! DASD Retired
Honnaka HMN Current
Honnaka HND Retired
Deep's DVMM Current
Deep's DVDMS Retired
Deep's DVDES Retired
Natural High NHDTC Current
Natural High NHDTB Retired
Natural High NHDTA Retired
ROCKET RCTD Current
ROCKET RCT Retired

Checked 2026-08-03. HMN is Honnaka's: it sits on Honnaka's own catalogue and picks up exactly where HND stopped — HND-999 and HMN-001 carry the same release date in June 2021. SSPD is an Attackers prefix, but we could not establish whether it is still receiving numbers, so its status stays blank.

Which prefixes belong to SOD?

SOD Create runs several parallel lines rather than one rotating line, so its prefixes coexist instead of succeeding one another.

Line character Prefix Status
Performer-led line (SOD star) START Current
Performer-led line, earlier STARS Retired
Planning line SDMUA Current
Planning line, earlier SDMU Retired
Youth-themed line SDAB Current
SENZ line SDDE Current
SOD female employees SDJS Current
Married-woman debut line SDNM Current
Magic Mirror van line SDMM Current

Checked 2026-08-03 against SOD's own new-release listing and FANZA product records. START is a straight succession rather than a parallel line: STARS closed at 999 in February 2024 and START-001 shipped the following month under the same SOD star label.

The SD cluster is large and internally differentiated by concept rather than by era, which is why several SD prefixes are active simultaneously.

Where can you read more about an individual label?

Several of the labels above have their own write-up covering house style and line history rather than just the prefix list: S1 No.1 Style, IdeaPocket, MOODYZ, PRESTIGE, SOD Create, Madonna, Attackers, kawaii* and E-BODY.

Use those when you already know the label and want context. Use this page when you have a prefix and need to know whose it is.

Which prefixes are we deliberately not listing?

Prefixes we cannot attribute with confidence, and per-prefix release counts.

Two omissions are intentional:

Uncertain attributions. Published prefix lists circulate widely and copy each other, including their errors. Where we could not confirm which label owns a prefix, the row is absent or carries a visible verification marker rather than a plausible guess. A wrong attribution in a reference table propagates.

Release counts. You will sometimes see tables claiming "this label has released N titles". We will not publish that number, because we cannot measure it. Our index stores faces, not catalogue records — there is no maker field and no release date in it. What we could measure is how many titles carrying a given prefix appear on the sites we index, and that is a measure of aggregator coverage, not of studio output.

Boundary worth stating: our index spans 106 sites, but only around a dozen of them carry Japanese-style codes at all, and 2,246 of our 2,333 representative images come from a single source (our index, 2026-08 snapshot). Any per-prefix count derived from that would say more about one aggregator's catalogue than about any studio.

What should you do with a prefix that is not in this table?

Work out which numbering family it belongs to before assuming it is a studio prefix.

  1. Check the alphabetical lookups — A–M and N–Z include prefixes not grouped here
  2. Check the shape. Leading digits mean an amateur or planning series (259LUXU-1234); a date-shaped number means an uncensored subscription site; FC2-PPV- means an individual-seller platform
  3. Check the serial length. Four or five digits under an unfamiliar prefix points to a long-running series rather than a studio line
  4. Check for a padded internal ID. 1sdab00123 contains SDAB-123

If the prefix survives all four checks and still resolves nowhere, it is likely either a very small label or a transcription error — the character-confusion table in JAV code not found covers the second case.

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