Spam Calls Are a Global Problem
Japan is far from alone. According to Truecaller's annual Global Spam Call Report, over 160 billion spam calls were placed worldwide in 2024 - an average of 6-7 per person per month.
Yet the volume and nature of spam calls vary enormously by country. The rise of international spam calls reflects cross-border criminal networks, but domestic factors also shape each nation's spam landscape.
Global Spam Call Ranking
Based on Truecaller's 2024 report, ranked by spam calls received per person per month:
- 1st: Brazil - 32.9/month. Lax telemarketing regulation; banks and telecom companies blast massive volumes of sales calls.
- 2nd: Peru - 18.2/month. Financial services telemarketing is the primary driver.
- 3rd: Indonesia - 16.5/month. Carrier promotional calls dominate.
- 4th: India - 14.3/month. A massive call center industry generates enormous outbound volume.
- 5th: Mexico - 12.1/month. Political robocalls surge during election season.
Latin America and South Asia dominate the top spots. Common threads: weak or poorly enforced telemarketing regulation, rapidly rising mobile penetration, and large call center industries.
Where Japan Stands
Japan doesn't even crack the top 20. At roughly 2-3 spam calls per person per month, it's classified globally as a "low spam" country.
Reasons include:
- Tokushoho regulation: The Act on Specified Commercial Transactions imposes strict rules on telemarketing.
- Do Not Call mechanisms: Telemarketing refusal systems are in place.
- Carrier countermeasures: NTT and major carriers offer spam filtering services.
- Cultural factors: Japanese society has a strong aversion to phone-based sales.
However, Japan has a distinctive profile: "low volume, high damage per incident." As explained in Why Phone Scams Thrive in Japan, annual losses from special fraud (tokushu sagi) exceed 30 billion yen, with per-incident losses among the highest in the world.
Unique Countermeasures Around the World
India: TRAI's Regulatory Push
India's TRAI operates a DND (Do Not Disturb) registry. Registered users are off-limits for sales calls, and violators face fines. From 2024, all sales calls must display the caller's name.
United States: STIR/SHAKEN
The FCC mandated STIR/SHAKEN - a caller ID authentication protocol that cryptographically verifies the caller's identity, targeting caller ID spoofing. Robocall volume dropped roughly 20% after deployment.
United Kingdom: Ofcom's Fine Regime
Ofcom can fine companies up to 2 million pounds (roughly 360 million yen) for illegal marketing calls. Over 5 million pounds in fines were levied in 2023 alone.
Australia: Scam Watch
The Australian government runs Scam Watch, a platform where citizens easily report scam calls and messages. Data is shared with carriers for number blocking.
What Japan Can Learn
STIR/SHAKEN-style caller authentication would curb spoofed scam calls. A UK-style high-fine regime would deter aggressive telemarketers. Active reporting by individuals will also accelerate domestic progress. On a personal level, call blocking remains essential. World map poster It's interesting to reflect on each country's phone culture while looking at a world map.
The Economic Toll of Spam Calls
Spam calls inflict serious economic damage worldwide. Hiya's 2024 report estimates global losses at roughly $65 billion (about 9.8 trillion yen) per year, encompassing direct fraud losses, opportunity costs of time spent handling spam, corporate productivity drops, and telecom infrastructure strain.
Corporate Productivity Loss
For businesses, spam calls are a serious productivity drain. Workplace nuisance call surveys show about 40% of calls to corporate main lines are sales-related, costing receptionists 2-3 minutes each. In Japan alone, hundreds of millions of labor hours per year are consumed by spam call handling - translating to hundreds of billions of yen in wage costs. Indirect losses from workflow interruptions multiply the figure further.
Telecom Infrastructure Strain
Mass auto-dialing by auto-dialer systems consumes network capacity, potentially degrading call quality for legitimate users. Carriers invest heavily in filtering and authentication infrastructure, and those costs are ultimately passed on to consumers through phone bills. In effect, everyone who uses a phone subsidizes the fight against spam.
Individual Impact
On a personal level, the costs add up: spam filter app subscriptions (200-400 yen/month), carrier blocking services (220-330 yen/month), and anti-scam phone hardware (5,000-15,000 yen). Direct fraud losses in Japan alone total roughly 44.1 billion yen per year. Understanding why phone scams thrive in Japan and strengthening defenses at both the individual and societal level is the key to reducing this economic toll. Budgets for spam call countermeasures are growing worldwide, and coordinated efforts among carriers, regulators, and security firms are essential.