B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
42.9%
42.9% -- phone number change rate for B2B business phone numbers (2026)
42.9% of business phone numbers change within a year.
Attribution:
View source
Lighthouse Research Team
Last verified:
·
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Source verified
Evidence graded
Value
42.9%
Unit
Percentage
Data Vintage
2026
Entity
Evidence Quality
B
Strong, reliable evidence
Sourced from a well-regarded research firm or industry leader with transparent methodology and a reasonably large sample.
Single source - not yet corroborated
Score breakdown
Extraction
50
Source Trust
60
Citation Chain
60
Independence
30
Methodology
45
Freshness
95
Source
IndustrySelect
Primary
Tier C
https://www.industryselect.com/blog/measuring-the-high-cost-of-bad-contact-data ↗
Source Article
3 Signs Outbound Reps Waste Time on Stale Data (2026)
Disclosure: This article is published by Datamagnet. Vendor claims are self-reported unless otherwise noted.
Stale Contact Data: 3 Signs It's Wasting Sales Time
By Elena Cho, Sales Intelligence Lead at Datamagnet, 8+ years building outbound data workflows for B2B revenue teams. Reviewed by the Datam…
Original Research
IndustrySelect
· Original study ↗
Methodology
IndustrySelect 2026 analysis
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
B2B business phone numbers: 42.9% phone number change rate. Source: IndustrySelect (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/b2b-phone-number-churn-2026
HTML Embed
<blockquote cite="https://lighthousedata.io/data/b2b-phone-number-churn-2026" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>42.9%</strong> -- phone number change rate for B2B business phone numbers<br><small>Source: IndustrySelect (2026) · <a href="https://lighthousedata.io/data/b2b-phone-number-churn-2026" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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