The Short Answer: Yes, *67 Still Blocks Caller ID — Technically

Yes, the *67 code still blocks caller ID on a per-call basis as of 2025-2026, but the practical reality for outbound campaigns has shifted. Major carriers and tech outlets confirm the feature remains technically functional, yet recipient-side filtering tools increasingly neutralize its usefulness for legitimate business outreach.

Verizon's support documentation states that dialing 67 before a number temporarily blocks Caller ID for that specific call, with the recipient seeing "Private," "Anonymous," or a similar indicator instead of the mobile number. Ting's VoIP documentation specifies that 67+ blocks caller ID for "the current call only," and USA TODAY's 2025 reporting confirms this only blocks the call you're making at that moment, not any future calls. Consumer Cellular notes the method works on both mobile phones and landlines for one-time calls.

• Per-call only — the block never carries forward to subsequent calls
• Toll-free numbers (800, 888, 877) and emergency services (911) ignore the code entirely
• Carrier support varies; some providers do not offer the feature at all
• Recipient-side tools like "Silence Unknown Callers" and carrier spam filters often send blocked calls straight to voicemail

The FCC's call-blocking guidance reinforces why this matters for compliance-focused operations: "Never set a phone number to display in caller ID unless it is yours" and "Always use a valid outgoing number" are explicit best practices to avoid false-positive blocking. At My AI Call Center, we structure every campaign around verified, business-associated numbers and approved, permissioned contact lists — because deliverability and trust depend on transparency, not suppression. Billions of unwanted calls are blocked each year at the network level, and calls showing "Private" or "Anonymous" increasingly join them.

Why a Blocked Caller ID Actually Hurts Your Contact Rates

So your call goes through with "Private Number" flashing on the screen — but what happens on the other end? Hiding your caller ID doesn't just hide it from strangers. It hides it from everyone, including the customers who already have your business saved in their contacts.

As USA TODAY's tech guidance points out, concealing your number means "friends, family, and coworkers who have your number saved on their device" can't recognize you either. There is a real chance the call goes unanswered. For a business running appointment reminders or renewal calls, that's the exact opposite of what you want.

The problem gets worse when you look at what recipients have on their phones. Modern devices and carrier tools actively filter calls that arrive without identifying information:

• iPhone "Silence Unknown Callers" — a built-in Apple feature that silences calls from numbers not in the recipient's contacts
• Android spam filters — "Filter spam calls" settings that screen out suspicious incoming calls
• Carrier apps like AT&T ActiveArmor and Verizon Call Filter
• Third-party blockers such as Hiya, Nomorobo, and Robokiller

All of these tools, as documented in the same USA TODAY report, can send blocked or unknown calls straight to voicemail. A call that never rings is a call that never connects.

The scale of filtering matters. The FCC's call-blocking guidance notes that billions of unwanted calls to American consumers are being blocked each year. A blocked caller ID looks, to these systems, exactly like the unwanted traffic they're designed to stop.

The FCC also warns that "false-positive blocking may occur if a legitimate caller uses a pattern similar to those associated with unwanted or illegal robocalls." Suppressing your caller ID is one of those patterns. Their best practices are blunt: always use a valid outgoing number, and never display a number that isn't yours.

For structured outbound campaigns, the math is simple. Caller ID blocking trades a small privacy gain for a large contact-rate loss — and it sidesteps the real issue, which is consent. The FCC requires written consent before prerecorded telemarketing calls, and that consent is what makes a call legitimate, not a hidden number.

That's why My AI Call Center runs campaigns only against approved, permissioned, or reviewed contact lists, with consent records checked before any call is placed. A recognizable business number plus proper consent outperforms *67 on every metric that matters: answered calls, completed conversations, and calls that don't end up in a spam folder nobody checks.

The Compliance Angle: What the FCC Says About Caller ID

The 67 code continues to function as a per-call caller ID blocking method where carrier support exists, but its use raises significant compliance concerns for outbound calling campaigns. While Consumer Cellular confirms 67 remains "a functional and widely applicable method for blocking caller ID on both mobile phones and landlines for one-time calls" (their guidance), the FCC's call-blocking guidance establishes clear boundaries for compliant caller ID practices. The agency explicitly states that displaying inaccurate or spoofed caller ID information violates regulations, emphasizing that businesses should "always use a valid outgoing number" and "never set a phone number to display in caller ID unless it is yours" (FCC guidance). This position aligns with TCPA requirements, where the compliant path relies on proper prior express consent and accurate caller identification—not attempts to hide or manipulate the displayed number.

For businesses operating under strict compliance frameworks like My AI Call Center, relying on 67 introduces multiple operational and regulatory risks beyond mere technical limitations. The code fails entirely for toll-free numbers (800, 888, 877) and emergency services (911), as confirmed by both Consumer Cellular and Verizon (Consumer Cellular, Verizon). Furthermore, recipient-side technologies such as iOS's "Silence Unknown Callers" and Android's spam filters frequently route calls with blocked caller ID directly to voicemail, undermining contact rates even when 67 technically functions. USA TODAY notes that hiding your number "conceals it from everyone, including friends, family, and coworkers who have your number saved on their device, so there is a chance the call might go unanswered" (their analysis), and third-party apps like Hiya or Nomorobo can further suppress these calls.

Ultimately, the FCC's framework prioritizes transparency and consent over obfuscation, making accurate caller ID a cornerstone of compliant outreach rather than a detail to circumvent. For organizations managing permissioned lists and structured campaigns, displaying a verified business number builds trust and reduces the likelihood of false-positive blocking by carrier-level spam filters. This approach not only satisfies regulatory expectations but also supports higher answer rates by ensuring recipients recognize the caller as legitimate. When combined with proper consent procedures and adherence to calling hour restrictions, accurate caller ID becomes an asset—not a liability—in maintaining both compliance and campaign effectiveness. For My AI Call Center, this means every outbound interaction begins with a number recipients can verify, reinforcing the permission-based foundation of each campaign while avoiding the pitfalls associated with caller ID suppression techniques.

What to Do Instead: Show a Real Number, Use Real Consent

While the 67 code still technically blocks caller ID on a per-call basis for supported carriers, relying on it for business outreach undermines contact rates and compliance efforts. Recipients using features like "Silence Unknown Callers" or spam filters often send blocked calls directly to voicemail, meaning even when 67 functions as intended, the call may go unanswered. This is especially problematic for time-sensitive campaigns like appointment reminders or lead follow-ups where timely connection is critical.

Instead of masking caller ID, businesses should use verified, business-associated numbers that recipients can recognize and call back. Displaying a legitimate outgoing number aligns with FCC best practices, which advise always using a valid outgoing number and never displaying a number that isn’t yours to avoid false-positive blocking. My AI Call Center ensures every campaign uses approved, permissioned lists with clear consent records, and only launches after verifying list quality and consent status—never relying on caller ID suppression to bypass compliance.

• Use verified business numbers recipients can recognize and trust for callback
• Maintain detailed consent records tied to each contact list
• Honor opt-outs immediately and log all DNC requests
• Include AI disclosure on every call as required by TCPA
• Run campaigns only against approved, permissioned, or reviewed lists

This structured approach supports compliance while improving answer rates and recipient trust. By focusing on transparency—showing a real number, obtaining real consent, and respecting preferences—businesses run more useful calls without risking regulatory penalties or damaging customer relationships. My AI Call Center builds every campaign around these principles, ensuring outcomes are accurate, traceable, and aligned with both TCPA requirements and customer experience goals.

How a Managed Campaign Handles Caller ID the Right Way

Businesses running outbound campaigns often wonder if caller ID blocking techniques like 67 still serve a practical purpose today. While the code remains technically functional for per-call blocking on many networks, its effectiveness in professional outreach is increasingly limited by modern call-filtering technologies. Research confirms that 67 still works to hide caller ID on individual calls across providers like Verizon and Ting, displaying "Private" or "Anonymous" to recipients. However, USA TODAY notes this only applies to the current call and does not persist for future dialing attempts.

Using *67 for campaign calls risks triggering recipient-side defenses that send blocked numbers straight to voicemail. Features like "Silence Unknown Callers" on iPhone or Android spam filters can automatically suppress calls with hidden caller ID, reducing contact rates significantly. USA TODAY highlights that hiding your number may cause even familiar contacts to ignore the call, as it conceals your identity from everyone — including those who have your number saved. This undermines the goal of legitimate business outreach, where recognition and trust drive engagement.

For compliant and effective campaigns, accurate caller ID is not just a best practice — it’s a regulatory expectation. The FCC advises always using a valid outgoing number and never displaying a number that isn’t yours, directly relevant to TCPA/DNC adherence. My AI Call Center ensures every campaign uses verified business numbers within approved calling windows, with outcomes routed back to your CRM. This approach supports transparency, improves answer rates, and aligns with compliance standards.

• *67 blocks caller ID only for the current call, not future attempts
• Calls to toll-free (800) and emergency (911) numbers cannot use *67 blocking
• Recipient-side tools like spam filters may send blocked calls directly to voicemail

Instead of relying on caller ID suppression, successful campaigns depend on proper consent, list quality, and clear business identification. My AI Call Center’s managed process begins with a free campaign review via 'Plan My Campaign,' where goals are defined, lists are vetted for permission, and pricing is locked at 9¢ per connected minute before launch. This structured approach ensures calls are useful, compliant, and integrated directly into your workflow — without the guesswork or risks of outdated tactics like *67.

Ready to see how a compliant campaign could work for your list? Start with a free review — no platform fees, no minimums, and full transparency from quote to outcome.