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 | |
|---|---|---|---|---|---|
| claro.com.br | isp | Claro Brasil | iphmx.com | Active | View |
| club-internet.fr | isp | Club Internet | sfr.fr | Active | View |
| cogeco.ca | isp | Cogeco Communications | cogeco.ca | Active | View |
| comcast.net | isp | Comcast Corporation | comcast.net | Active | View |
| consolidated.net | isp | Consolidated Communications | carrierzone.com | Active | View |
| consolidatedcommunications.com | isp | Consolidated Communications | Self-hosted | Active | View |
| cox.net | isp | Cox Communications | Yahoo Mail | Active | View |
| ctbc.com.br | isp | CTBC Telecom | Google Workspace | Active | View |
| ctc.net | isp | Citizens Telephone Company | windstream.net | Active | View |
| dataone.in | isp | BSNL DataOne | dildns.com | Active | View |
| demon.net | isp | Demon Internet | demon.net | Active | View |
| digiweb.ie | isp | Digiweb | Mimecast | Active | View |
| dion.ne.jp | isp | DION (KDDI) | secure.jp | Active | View |
| dna.fi | isp | DNA Oyj | Microsoft 365 | Active | View |
| dodo.com.au | isp | Dodo Internet | atmailcloud.com | Active | View |
| dreamwiz.com | isp | Dreamwiz | Google Workspace | Active | View |
| du.ae | isp | du (Emirates Integrated Telecommunications) | Microsoft 365 | Active | View |
| earthlink.net | isp | EarthLink Inc. | earthlink-vadesecure.net | Active | View |
| eastlink.ca | isp | Eastlink | eastlink.ca | Active | View |
| eclipse.net.uk | isp | Eclipse Internet | net.uk | Active | View |
| ee.co.uk | isp | EE / BT | Microsoft 365 | Active | View |
| eftel.com.au | isp | Eftel | atmailcloud.com | Active | View |
| eir.ie | isp | Eir | Microsoft 365 | Active | View |
| elisa.com | isp | Elisa | Microsoft 365 | Active | View |
| embarq.com | isp | Embarq | None | Active | View |
| emypeople.net | isp | Emypeople Internet Services | upwardmail.net | Active | View |
| epb.net | isp | EPB Fiber Optics | Mimecast | Active | View |
| etisalat.com | isp | Etisalat | etisalat.com | Active | View |
| excitel.com | isp | Excitel Broadband | Google Workspace | Active | View |
| exetel.com.au | isp | Exetel | Proofpoint | Active | View |
| fairpoint.net | isp | FairPoint Communications | av-mx.com | Active | View |
| fastweb.it | isp | Fastweb | Proofpoint | Active | View |
| fibertel.com.ar | isp | Fibertel (Cablevision) | com.ar | Active | View |
| frontier.com | isp | Frontier Communications | Yahoo Mail | Active | View |
| ftc-i.net | isp | Farmers Telephone Cooperative | atmailcloud.com | Active | View |
| gandi.net | isp | Gandi | gandi.net | Active | View |
| gci.net | isp | GCI Alaska | gci.net | Active | View |
| get.no | isp | GET (Telia Norway) | telia.net | Active | View |
| gmx.de | isp | GMX Germany | gmx.net | Active | View |
| green.ch | isp | green.ch | Microsoft 365 | Active | View |
| gvt.com.br | isp | GVT (Global Village Telecom) | trendmicro.com | Active | View |
| hathway.com | isp | Hathway Cable | Google Workspace | Active | View |
| hawaiiantel.net | isp | Hawaiian Telcom | hostedemail.com | Active | View |
| hetnet.nl | isp | Het Net | kpnmail.nl | Active | View |
| hi-ho.ne.jp | isp | Hi-Ho | mose-mail.jp | Active | View |
| hinet.net | isp | HiNet (Chunghwa Telecom) | hinet.net | Active | View |
| hispeed.ch | isp | Hispeed (Cablecom) | unified.services | Active | View |
| home.nl | isp | Home.nl | ziggo.nl | Active | View |
| homecall.co.uk | isp | Homecall | oxcs.net | Active | View |
| htc.net | isp | HTC Communications | htc.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
ISO 27001
Security Certified
SOC 2 Type II
Auditor Verified
GDPR
Fully Compliant
CCPA
Privacy Ready
HIPAA
Healthcare Ready
AES-256
Encryption