Verify ISP Email Addresses
Comcast, AT&T, Verizon, Charter, and other ISP email addresses go dead when customers switch providers. If your list targets consumers or local markets, ISP addresses are some of your most valuable contacts, but also some of the most likely to churn. Verify your ISP email list before your next send to drop the ones that have disconnected. 99.7% accuracy, results in minutes.
Popular ISP Domains
du.ae du (Emirates Integrated Telecommunications)
nctc.com North Central Telephone Cooperative
rrt.net Reservation Telephone Cooperative
ftc-i.net Farmers Telephone Cooperative
shentel.net Shenandoah Telecommunications
speedy.com.ar Speedy (Telefonica Argentina)
t-com.ne.jp T-COM (TOKAI Communications)
gvt.com.br GVT (Global Village Telecom)
emypeople.net Emypeople Internet Services
consolidatedcommunications.com Consolidated Communications
midco.net Midcontinent Communications
consolidated.net Consolidated Communications
All (2,731)
Freemail (200)
Disposable (589)
Corporate (1,134)
Government (113)
Education (431)
Isp (264)
| Domain ▼ | Type | Organization | Mail Server | Status | |
|---|---|---|---|---|---|
| jazztel.com | isp | Jazztel | trendmicro.eu | Active | View |
| izzi.mx | isp | izzi Telecom | Microsoft 365 | Active | View |
| iol.ie | isp | Ireland On-Line | esat.net | Active | View |
| inode.at | isp | Inode (UPC Austria) | mymagenta.at | Active | View |
| infoweb.ne.jp | isp | InfoWeb (Fujitsu) | nifty.com | Active | View |
| infinitum.com | isp | Infinitum (Telmex) | Google Workspace | Active | View |
| imagine.ie | isp | Imagine Communications | irishbroadband.ie | Active | View |
| idea.com | isp | Idea Cellular | Microsoft 365 | Active | View |
| htc.net | isp | HTC Communications | htc.net | Active | View |
| homecall.co.uk | isp | Homecall | oxcs.net | Active | View |
| home.nl | isp | Home.nl | ziggo.nl | Active | View |
| hispeed.ch | isp | Hispeed (Cablecom) | unified.services | Active | View |
| hinet.net | isp | HiNet (Chunghwa Telecom) | hinet.net | Active | View |
| hi-ho.ne.jp | isp | Hi-Ho | mose-mail.jp | Active | View |
| hetnet.nl | isp | Het Net | kpnmail.nl | Active | View |
| hawaiiantel.net | isp | Hawaiian Telcom | hostedemail.com | Active | View |
| hathway.com | isp | Hathway Cable | Google Workspace | Active | View |
| gvt.com.br | isp | GVT (Global Village Telecom) | trendmicro.com | Active | View |
| green.ch | isp | green.ch | Microsoft 365 | Active | View |
| gmx.de | isp | GMX Germany | gmx.net | Active | View |
| get.no | isp | GET (Telia Norway) | telia.net | Active | View |
| gci.net | isp | GCI Alaska | gci.net | Active | View |
| gandi.net | isp | Gandi | gandi.net | Active | View |
| ftc-i.net | isp | Farmers Telephone Cooperative | atmailcloud.com | Active | View |
| frontier.com | isp | Frontier Communications | Yahoo Mail | Active | View |
| fibertel.com.ar | isp | Fibertel (Cablevision) | com.ar | Active | View |
| fastweb.it | isp | Fastweb | Proofpoint | Active | View |
| fairpoint.net | isp | FairPoint Communications | av-mx.com | Active | View |
| exetel.com.au | isp | Exetel | Proofpoint | Active | View |
| excitel.com | isp | Excitel Broadband | Google Workspace | Active | View |
| etisalat.com | isp | Etisalat | etisalat.com | Active | View |
| epb.net | isp | EPB Fiber Optics | Mimecast | Active | View |
| emypeople.net | isp | Emypeople Internet Services | upwardmail.net | Active | View |
| embarq.com | isp | Embarq | None | Active | View |
| elisa.com | isp | Elisa | Microsoft 365 | Active | View |
| eir.ie | isp | Eir | Microsoft 365 | Active | View |
| eftel.com.au | isp | Eftel | atmailcloud.com | Active | View |
| ee.co.uk | isp | EE / BT | Microsoft 365 | Active | View |
| eclipse.net.uk | isp | Eclipse Internet | net.uk | Active | View |
| eastlink.ca | isp | Eastlink | eastlink.ca | Active | View |
| earthlink.net | isp | EarthLink Inc. | earthlink-vadesecure.net | Active | View |
| du.ae | isp | du (Emirates Integrated Telecommunications) | Microsoft 365 | Active | View |
| dreamwiz.com | isp | Dreamwiz | Google Workspace | Active | View |
| dodo.com.au | isp | Dodo Internet | atmailcloud.com | Active | View |
| dna.fi | isp | DNA Oyj | Microsoft 365 | Active | View |
| dion.ne.jp | isp | DION (KDDI) | secure.jp | Active | View |
| digiweb.ie | isp | Digiweb | Mimecast | Active | View |
| demon.net | isp | Demon Internet | demon.net | Active | View |
| dataone.in | isp | BSNL DataOne | dildns.com | Active | View |
| ctc.net | isp | Citizens Telephone Company | windstream.net | Active | View |
Clean Your ISP Email Providers List
Comcast, AT&T, Verizon, Spectrum, and other ISP email addresses churn when customers switch providers. These are some of your most valuable consumer contacts and some of the most likely to go dead. Verify your ISP email list before your next campaign to stop bouncing on disconnected addresses.
Verify Your Entire Email List
with 99.7% Accuracy
Upload a CSV, clean your list, and remove every invalid, disposable, and spam trap address. No contracts. No monthly fees. Just pay for what you need.
Bulk Email Verification
Real-Time API
No Credit Card Required
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Security Certified
SOC 2 Type II
Auditor Verified
GDPR
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CCPA
Privacy Ready
HIPAA
Healthcare Ready
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