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ZelNum VS Code Poster

Compare ZelNum VS Code Poster and see what are their differences

Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.
Contents:
  1. ยป Base Details
  2. ยป Reviews
  3. ยป Alternatives

ZelNum logo ZelNum

Turn CSV/TXT lists into actionable segments with phone validation, carrier and HLR intelligence, messaging-app, social-account, and crypto-exchange checks, plus API workflows.

Code Poster logo Code Poster

Show off your creations with a beautiful poster
  • ZelNum
    Image date //
    2026-07-27
  • ZelNum
    Image date //
    2026-07-27
  • ZelNum
    Image date //
    2026-07-27
  • ZelNum
    Image date //
    2026-07-27

ZelNum is a self-service bulk verification and data-quality platform for phone intelligence, messaging apps, social and consumer accounts, and crypto exchanges.

Upload CSV or TXT lists to check phone status, live activity, carrier and line type, HLR-style network signals, phone model, and duplicate or invalid records.

Run phone- and email-based account-signal checks across WhatsApp, Telegram, Facebook, TikTok, iMessage, RCS, Zalo, LINE, Viber, Instagram, LinkedIn, Snapchat, Signal, BAND, Amazon, Apple ID, and Microsoft, together with supported crypto exchanges such as Binance, KuCoin, CoinW, and HTX.

Depending on the product, workflows can include activity, account-age, username, and selected profile signals. Export structured segments for list cleaning, CRM preparation, messaging operations, community management, and data workflows.

Developers can use task-based APIs for batch submission, status monitoring, and result retrieval.

  • Code Poster Landing page
    Landing page //
    2022-12-17

ZelNum

Website
zelnum.com
Pricing URL
Official ZelNum Pricing
$ Details
freemium $1 (10,000 WhatsApp number checks)
Platforms
Web REST API SaaS
Release Date
2026 May
Edit details

Code Poster

Website
codeposter.net
Pricing URL
-
$ Details
-
Platforms
-
Release Date
-
Categories -
Edit details

ZelNum features and specs

  • Bulk Phone Validation
    Validate, normalize and segment phone numbers from CSV or TXT files.
  • Messaging App Checks
    Check selected phone-number and account signals across WhatsApp, Telegram, Facebook, iMessage, RCS, Zalo, LINE, and Viber.
  • Carrier and HLR Lookup
    Identify carrier, country, line type, and HLR-style network signals.
  • Phone Status and Activity Checksใ€‚
    Identify active, inactive, risky, and recently active numbers where supported.
  • Social Account Checks
    Check phone- and email-based account signals across Instagram, TikTok, LinkedIn, Snapchat, Signal, BAND, Amazon, Apple ID, and Microsoft.
  • Crypto Exchange Account Checks
    Check supported phone and email account signals across Binance, KuCoin, CoinW, and HTX.
  • Email Account Checks
    Check email-based account signals across supported platforms and services.
  • Phone Model Detection
    Detect the phone brand and model associated with a mobile number where available.
  • List Cleaning and Segmentation
    Remove duplicate or invalid records and export structured result segments.
  • CSV/TXT Bulk Uploads
    Upload contact lists for batch verification, cleaning, and segmentation.
  • REST API Workflows
    Submit batch tasks, monitor processing status, retrieve results, and integrate verification into applications.

Code Poster features and specs

No features have been listed yet.

Analysis of ZelNum

Overall verdict

  • BulkChecker.io appears to be a bulk email/domain verification tool designed to help users validate large lists of email addresses to reduce bounce rates and improve deliverability, but as I don't have verified, up-to-date information on this specific service, I'd recommend researching current user reviews, checking recent uptime/accuracy reports, and testing with a small sample before committing to a larger plan.

Why this product is good

  • Bulk verification tools generally save time by processing large email lists quickly compared to manual checks
  • Such services typically help improve email deliverability by removing invalid or risky addresses before sending campaigns
  • May offer API access for integration into existing workflows or CRM systems
  • Often provide tiered pricing that can scale with list size, potentially cost-effective for growing needs

Recommended for

  • Email marketers needing to clean large subscriber lists before campaigns
  • Businesses looking to reduce bounce rates and protect sender reputation
  • Developers wanting API-based email validation integration
  • Users who should independently verify current pricing, accuracy rates, and customer support quality before relying on this specific service

Analysis of Code Poster

Overall verdict

  • Code Poster (codeposter.net) appears to be a niche service that transforms source code into decorative poster-style visual art, appealing primarily to developers and tech enthusiasts who want a unique way to showcase or display code aesthetically. Without extensive independent reviews available, it seems to be a good option for a specific creative niche rather than a mainstream necessity.

Why this product is good

  • Offers a unique way to turn code into visually appealing wall art or digital designs
  • Appeals to programmers who want to celebrate or showcase their favorite projects, algorithms, or scripts
  • Simple concept that combines coding culture with home or office decor
  • Can serve as a creative gift idea for developers or tech-savvy individuals

Recommended for

  • Programmers who want unique decor for their home office
  • Tech companies looking for creative office wall art
  • Coding enthusiasts wanting to display favorite algorithms or projects
  • People searching for unique gifts for developers or computer science students

Category Popularity

0-100% (relative to ZelNum and Code Poster)

ZelNum

Code Poster

Data Validation
100 100%
Data Validation
0% 0
WhatsApp
100 100%
WhatsApp
0% 0
Phone Number Validation
100 100%
Phone Number Validation
0% 0
Data Enrichment
100 100%
Data Enrichment
0% 0

Questions & Answers

As answered by people managing ZelNum and Code Poster.

Why should a person choose your product over its competitors?

ZelNum's answer

ZelNum supports multiple verification types, usage-based pricing, downloadable result segments, and task-based API processing without requiring a subscription.

How would you describe the primary audience of your product?

ZelNum's answer

Marketing teams, CRM operators, developers, agencies, community managers, and businesses that need to clean or enrich large contact lists.

What makes your product unique?

ZelNum's answer

ZelNum combines phone validation, carrier lookup, WhatsApp and Telegram checks, and other account signals in one bulk CSV/TXT and API workflow.

User comments

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What are some alternatives?

When comparing ZelNum and Code Poster, you can also consider the following products

CheckNumber.AI - CheckNumber.AI provides professional and free WhatsApp number check online service, and provides a professional WhatsApp Number Checker API that can quickly check and detect WhatsApp number in bulk.

Numverify - Global phone number validation and lookup API

numberchecker.ai - Bulk Check & Filter Number List๏ผˆWhatsAppใ€Telegramใ€instagramใ€Facebookใ€Amazonใ€Apple๏ผ‰

Lookup by Twilio - Know the details behind every phone number

WA-Filter - Filter valid and invalid WhatsApp numbers effortlessly with WA-Filter, the ultimate Chrome Extension for accurate number identification and efficient contact management.

Veriphone - Phone number validation & carrier lookup

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