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What Are Data Appends and Why They Matter

Data Appends & Enrichment

Data Appending connects incomplete, outdated, or anonymous records to verified consumer information, creating a complete and accurate profile for every contact. This gives your marketing, analytics, and customer systems the verified foundation they need to reach real people across every channel.

With Xcelerated, you gain access to more than 300 million verified consumer profiles built and refined through years of continuous data enrichment and behavioral tracking. Our clients typically see more than 40 percent additional verified contacts compared to standard append providers.

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Data Appends

Types of Data Appends

Xcelerated’s Data Append solutions fill in the missing details that turn anonymous records into verified consumer profiles. Each append type is validated and layered through our Consumer Identity Graph for accuracy and scale.

  • Email Append

    Email Appends That Reconnect You With Real Customers

    Add verified primary and alternate email addresses to your customer or prospect records. Our layered data sources and validation process ensure active, deliverable inboxes — not dead addresses.

    Alternate emails extend reach and reactivation opportunities, helping brands recover lost connections and drive higher engagement rates.

    Phone Append

    Verified Phone Appends That Improve Reach and Accuracy

    Attach validated landline and mobile numbers to your records for stronger outbound and omni-channel campaigns.

    Each number is verified through carrier-level validation and real-time activity data, giving your team confidence that every call, text, or match is legitimate.

    Reverse Append

    Reverse Appends That Uncover Full Consumer Identities

    Start with a single data point — like a phone number or email — and reveal the complete consumer identity including name, address, and verified contact details.

    Reverse appends are ideal for CRM enrichment, customer lookup, lead verification, and fraud prevention initiatives.

    Address Append

    Physical Address Appends That Ensure You Reach the Right Household

    Enhance your records with verified postal addresses that pass NCOA, TruAddress, CASSand deliverability checks.

    Our process confirms that each household is valid and current, helping reduce undeliverable mail and wasted spend in direct campaigns.

Data Appends & Enrichment FAQs

Data appends and enrichment expand the value of your existing records by adding verified contact details and intelligence that support marketing, analytics, and identity resolution. Xcelerated Data applies validation, first enrichment to ensure appended data is accurate, compliant, and actionable across systems.

Data appends add missing information, such as verified email addresses, phone numbers, or household details, to existing records. Data enrichment goes further by enhancing profiles with validated attributes and signals that make the data more useful for segmentation, outreach, and analysis. Xcelerated Data focuses on appending only verified, usable data rather than raw or unvalidated matches.

Xcelerated Data uses layered validation and hygiene checks before appending any data. This includes verification of contact deliverability, identity consistency, and household alignment to ensure appended records meet quality standards and reduce the risk of bounce, waste, or misattribution.

Data appends and enrichment are most effective after a dataset has been cleaned and standardized. Xcelerated Data typically recommends enrichment as a follow-up to data hygiene so appended information is attached to accurate, current records and can be confidently used for marketing activation, analytics, and identity resolution.

“THANK YOU so much for your efforts and getting this done for us! We so appreciate this! Technical glitches happen but when we have “human” support like yours behind the scenes, it makes every ounce of difference! Thanks again so much!!”

Carly London
Head of Growth at Lively

At its core, Northbeam is a data company. Which is why I trust their models and attribution over anyone else. I know when I look at their data I get an honest look at our performance. Good or bad.

Carly London
Head of Growth at Lively