# 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: 2,263
- Reports across sources: 87.7K
- Active last 30 days: 1,009
- Latest activity: 2026-11-15
- Aggregates refreshed: 2026-11-15

## Recently active numbers (24 shown)

| Number | Trust | Category | Reports | Sources | Last activity | Lookup |
|---|---|---|---|---|---|---|
| +815055272963 | Low (30/100) | Survey | 34 | 2 | 2026-11-15 | https://numbers.online/md/lookup/815055272963 |
| +817075865458 | Low (21/100) | Phishing / smishing | 8 | 2 | 2026-11-15 | https://numbers.online/md/lookup/817075865458 |
| +81120938976 | Very risky (15/100) | Phishing / smishing | 58 | 2 | 2026-11-15 | https://numbers.online/md/lookup/81120938976 |
| +81331010107 | Fair (40/100) | Phishing / smishing | 66 | 1 | 2026-11-15 | https://numbers.online/md/lookup/81331010107 |
| +81368432229 | Fair (40/100) | Ping call | 7 | 1 | 2026-11-15 | https://numbers.online/md/lookup/81368432229 |
| +815068690242 | Very risky (10/100) | Robocall | 1 | 1 | 2026-11-15 | https://numbers.online/md/lookup/815068690242 |
| +81662105920 | Fair (40/100) | Phishing / smishing | 25 | 1 | 2026-11-15 | https://numbers.online/md/lookup/81662105920 |
| +817013429441 | Fair (40/100) | Robocall | 28 | 1 | 2026-11-15 | https://numbers.online/md/lookup/817013429441 |
| +817020234448 | Very risky (10/100) | Phishing / smishing | 3 | 1 | 2026-11-15 | https://numbers.online/md/lookup/817020234448 |
| +817022431505 | Very risky (10/100) | Phishing / smishing | 8 | 1 | 2026-11-15 | https://numbers.online/md/lookup/817022431505 |
| +817022903707 | Very risky (10/100) | Phishing / smishing | 6 | 1 | 2026-11-15 | https://numbers.online/md/lookup/817022903707 |
| +817022936328 | Very risky (10/100) | Robocall | 1 | 1 | 2026-11-15 | https://numbers.online/md/lookup/817022936328 |
| +817032547097 | Fair (40/100) | IRS / tax scam | 1 | 1 | 2026-11-15 | https://numbers.online/md/lookup/817032547097 |
| +817038639850 | Low (30/100) | Reported activity | 5 | 1 | 2026-11-15 | https://numbers.online/md/lookup/817038639850 |
| +817065625375 | Very risky (10/100) | Phishing / smishing | 3 | 1 | 2026-11-15 | https://numbers.online/md/lookup/817065625375 |
| +818005006061 | Very risky (10/100) | Phishing / smishing | 21 | 1 | 2026-11-15 | https://numbers.online/md/lookup/818005006061 |
| +818007776774 | Very risky (10/100) | Phishing / smishing | 55 | 1 | 2026-11-15 | https://numbers.online/md/lookup/818007776774 |
| +818020590830 | Fair (40/100) | Robocall | 27 | 1 | 2026-11-15 | https://numbers.online/md/lookup/818020590830 |
| +818020591378 | Fair (40/100) | Robocall | 18 | 1 | 2026-11-15 | https://numbers.online/md/lookup/818020591378 |
| +818040006285 | Very risky (10/100) | Phishing / smishing | 4 | 1 | 2026-11-15 | https://numbers.online/md/lookup/818040006285 |
| +818060157154 | Very risky (10/100) | Phishing / smishing | 10 | 1 | 2026-11-15 | https://numbers.online/md/lookup/818060157154 |
| +818060675876 | Very risky (10/100) | Phishing / smishing | 6 | 1 | 2026-11-15 | https://numbers.online/md/lookup/818060675876 |
| +818060832019 | Low (21/100) | Phishing / smishing | 11 | 2 | 2026-11-15 | https://numbers.online/md/lookup/818060832019 |
| +818080479302 | Fair (40/100) | Robocall | 11 | 1 | 2026-11-15 | https://numbers.online/md/lookup/818080479302 |

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 — 816
- Telemarketing — 561
- Robocall — 249
- Survey — 164
- Silent / hang-up — 133
- Reported activity — 118
- Ping call — 105
- Debt collection — 73

## Most-reported prefixes

- +81 800 — 194
- +81 503 — 186
- +81 505 — 176
- +81 120 — 166
- +81 808 — 87
- +81 703 — 82
- +81 802 — 79
- +81 801 — 76

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) — 3.2M numbers with signals
- [Poland](https://numbers.online/md/browse/pl) — 129.8K numbers with signals
- [Germany](https://numbers.online/md/browse/de) — 36.3K numbers with signals
- [Lithuania](https://numbers.online/md/browse/lt) — 25.9K numbers with signals
- [United Kingdom](https://numbers.online/md/browse/gb) — 19K numbers with signals
- [Romania](https://numbers.online/md/browse/ro) — 5,082 numbers with signals
- [Italy](https://numbers.online/md/browse/it) — 4,590 numbers with signals
- [Spain](https://numbers.online/md/browse/es) — 4,571 numbers with signals
- [Denmark](https://numbers.online/md/browse/dk) — 3,790 numbers with signals
- [Portugal](https://numbers.online/md/browse/pt) — 3,438 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