Yes — oncallelectricalservices.org has IPv6.

Has both IPv4 (A) and IPv6 (AAAA) addresses.

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 oncallelectricalservices.org has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3034::6815:3a2f answers · 443✓ 2606:4700:3036::ac43:c840 answers · 443	yes
www over IPv6 www.oncallelectricalservices.org has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3036::ac43:c840 answers · 443✓ 2606:4700:3034::6815:3a2f answers · 443	yes
Mail servers (MX) have IPv6 Every mail server has an AAAA record. route1.mx.cloudflare.net ✓route3.mx.cloudflare.net ✓route2.mx.cloudflare.net ✓	yes
Nameservers have IPv6 2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up. houston.ns.cloudflare.com ✓penny.ns.cloudflare.com ✓	yes

HTTPS over IPv6 · not part of the grade yet
oncallelectricalservices.org didn't complete an HTTPS request over IPv6 (timed out).

https://oncallelectricalservices.org/ via 2606:4700:3034::6815:3a2f · timed out

Nothing keeping you from an A

Nothing to fix
Show it off: add the badge to your README.
[![IPv6](https://aaaa.bot/badge/oncallelectricalservices.org.svg)](https://aaaa.bot/oncallelectricalservices.org)

Check again

oncallelectricalservices.org Has IPv6

A (IPv4)	172.67.200.64 104.21.58.47
AAAA (IPv6)	2606:4700:3034::6815:3a2f 2606:4700:3036::ac43:c840

www.oncallelectricalservices.org Has IPv6

A (IPv4)	172.67.200.64 104.21.58.47
AAAA (IPv6)	2606:4700:3036::ac43:c840 2606:4700:3034::6815:3a2f

Browsers on dual-stack networks will usually pick IPv6 here (the "Happy Eyeballs" algorithm races both and prefers v6).

Copy the evidence — a citation-ready record of this measurement

IPv6 measurement: oncallelectricalservices.org
Measured 2026-11-10 03:21:02 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    172.67.200.64, 104.21.58.47
AAAA (IPv6): 2606:4700:3034::6815:3a2f, 2606:4700:3036::ac43:c840
www AAAA:    2606:4700:3036::ac43:c840, 2606:4700:3034::6815:3a2f

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: oncallelectricalservices.org has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3034::6815:3a2f: answers (TCP 443)
    2606:4700:3036::ac43:c840: answers (TCP 443)
- www over IPv6: www.oncallelectricalservices.org has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3036::ac43:c840: answers (TCP 443)
    2606:4700:3034::6815:3a2f: answers (TCP 443)
- Mail servers (MX) have IPv6: Every mail server has an AAAA record.
- Nameservers have IPv6: 2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.

Reachability = a TCP connection opened on port 443 (or 80).

HTTPS over IPv6 (not graded): oncallelectricalservices.org didn't complete an HTTPS request over IPv6 (timed out).
    https://oncallelectricalservices.org/ via 2606:4700:3034::6815:3a2f, certificate: valid (timed out)
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/VdlWs1vBPY

Permanent link: aaaa.bot/r/VdlWs1vBPY · How we measure

Checked 2026-11-10 03:21:02 UTC. Full DNS report: dns.pizza/domain/oncallelectricalservices.org · Age, certificate and blocklists: how.is/oncallelectricalservices.org · JSON: /api/v1/oncallelectricalservices.org