# Reported phone numbers in Japan (+81)

> Phone numbers with spam or scam signals observed in Japan, aggregated from independent
> complaint sources and the Numbers Online community. Everything on this page is a
> supplementary signal — advisory, not a verdict — and personal numbers are never listed.

- Numbers with signals: 1,176
- Reports across sources: 62.5K
- Active last 30 days: 0
- Latest activity: 2026-07-14
- Aggregates refreshed: 2026-09-14

## Recently active numbers (24 shown)

| Number | Trust | Category | Reports | Sources | Last activity | Lookup |
|---|---|---|---|---|---|---|
| +819069041281 | Low (30/100) | Robocall | 5 | 1 | 2026-07-14 | https://numbers.online/md/lookup/819069041281 |
| +818049347682 | Fair (40/100) | Telemarketing | 3 | 1 | 2026-07-14 | https://numbers.online/md/lookup/818049347682 |
| +818056577689 | Very risky (10/100) | Phishing / smishing | 14 | 1 | 2026-07-14 | https://numbers.online/md/lookup/818056577689 |
| +818063158532 | Very risky (10/100) | Phishing / smishing | 3 | 1 | 2026-07-14 | https://numbers.online/md/lookup/818063158532 |
| +818071927507 | Low (30/100) | Telemarketing | 5 | 1 | 2026-07-14 | https://numbers.online/md/lookup/818071927507 |
| +818092083043 | Low (30/100) | Telemarketing | 34 | 1 | 2026-07-14 | https://numbers.online/md/lookup/818092083043 |
| +81120062498 | Very risky (10/100) | Ping call | 3 | 1 | 2026-07-14 | https://numbers.online/md/lookup/81120062498 |
| +81120608078 | Low (30/100) | Telemarketing | 15 | 1 | 2026-07-14 | https://numbers.online/md/lookup/81120608078 |
| +81120663623 | Low (30/100) | Ping call | 37 | 1 | 2026-07-14 | https://numbers.online/md/lookup/81120663623 |
| +81342188786 | Low (30/100) | Phishing / smishing | 8 | 1 | 2026-07-14 | https://numbers.online/md/lookup/81342188786 |
| +81363721925 | Fair (40/100) | Telemarketing | 73 | 1 | 2026-07-14 | https://numbers.online/md/lookup/81363721925 |
| +815017910591 | Fair (40/100) | Telemarketing | 7 | 1 | 2026-07-14 | https://numbers.online/md/lookup/815017910591 |
| +815031450969 | Low (30/100) | Robocall | 20 | 1 | 2026-07-14 | https://numbers.online/md/lookup/815031450969 |
| +815031660276 | Very risky (10/100) | Phishing / smishing | 26 | 1 | 2026-07-14 | https://numbers.online/md/lookup/815031660276 |
| +815050503275 | Fair (40/100) | Phishing / smishing | 24 | 1 | 2026-07-14 | https://numbers.online/md/lookup/815050503275 |
| +815054822327 | Low (30/100) | Telemarketing | 21 | 1 | 2026-07-14 | https://numbers.online/md/lookup/815054822327 |
| +815068607929 | Low (30/100) | Phishing / smishing | 5 | 1 | 2026-07-14 | https://numbers.online/md/lookup/815068607929 |
| +817022805029 | Low (30/100) | Telemarketing | 5 | 1 | 2026-07-14 | https://numbers.online/md/lookup/817022805029 |
| +817036187453 | Very risky (10/100) | Phishing / smishing | 7 | 1 | 2026-07-14 | https://numbers.online/md/lookup/817036187453 |
| +817037815999 | Very risky (10/100) | Phishing / smishing | 5 | 1 | 2026-07-14 | https://numbers.online/md/lookup/817037815999 |
| +817039380058 | Fair (40/100) | Debt collection | 2 | 1 | 2026-07-14 | https://numbers.online/md/lookup/817039380058 |
| +818007003411 | Fair (40/100) | Silent / hang-up | 150 | 1 | 2026-07-14 | https://numbers.online/md/lookup/818007003411 |
| +818007770961 | Low (30/100) | Survey | 26 | 1 | 2026-07-14 | https://numbers.online/md/lookup/818007770961 |
| +818020591191 | Fair (40/100) | Survey | 16 | 1 | 2026-07-14 | https://numbers.online/md/lookup/818020591191 |

Freshness reflects when a source last observed activity — never when we crawled it.
Full history and scoring on each number's lookup page. Trust is 0–100, higher = better.

## What gets reported

- Phishing / smishing — 419
- Telemarketing — 291
- Survey — 123
- Silent / hang-up — 84
- Ping call — 74
- Reported activity — 68
- Robocall — 64
- Debt collection — 37

## Most-reported prefixes

- +81 800 — 126
- +81 505 — 99
- +81 120 — 97
- +81 503 — 95
- +81 501 — 46
- +81 802 — 41
- +81 801 — 40
- +81 703 — 37

Number ranges where signal numbers cluster. A prefix itself is never bad — plenty of
legitimate numbers share it.

## Other countries

- [United States](https://numbers.online/md/browse/us) — 3M numbers with signals
- [Poland](https://numbers.online/md/browse/pl) — 87K numbers with signals
- [Germany](https://numbers.online/md/browse/de) — 34.8K numbers with signals
- [Lithuania](https://numbers.online/md/browse/lt) — 25.6K numbers with signals
- [United Kingdom](https://numbers.online/md/browse/gb) — 14.6K numbers with signals
- [Romania](https://numbers.online/md/browse/ro) — 4,911 numbers with signals
- [Italy](https://numbers.online/md/browse/it) — 3,373 numbers with signals
- [Denmark](https://numbers.online/md/browse/dk) — 3,292 numbers with signals
- [Morocco](https://numbers.online/md/browse/ma) — 3,255 numbers with signals
- [Tunisia](https://numbers.online/md/browse/tn) — 2,424 numbers with signals

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Numbers Online — community-powered phone-number trust signals. Every figure on this
page is a supplementary, low-confidence signal — advisory, not a verdict on any number
or its owner.

- Canonical page (HTML): https://numbers.online/browse/jp
- Report a call: https://numbers.online/report · Listed in error? Request removal: https://numbers.online/opt-out
- Machine guide to the phone-intelligence API: https://numbers.online/llms.txt · OpenAPI: https://numbers.online/api/spec