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Default DNS server IP addresses

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Copper Contributor
Posts: 45
Registered: ‎12-02-2008

Default DNS server IP addresses

Message 1 of 16 (135,376 Views)

I was having problems tracking down the default IP addresses for the FIOS DNS servers and saw others were having the same problem. Finally got them (at least, the ones for Maryland FIOS) and figured I'd post them in case they were of use to others:

 

4.2.2.1
4.2.2.2
4.2.2.3
4.2.2.4
4.2.2.5

 

Hope this can help someone.

15 REPLIES
Silver Contributor IV
Posts: 1,217
Registered: ‎12-14-2009

Re: Default DNS server IP addresses

Message 2 of 16 (135,342 Views)

Those are all Level 3 DNS servers.  How did you determine those are the FiOS default servers?

 

I don't use the default servers but if I did my Actiontec shows them to be 68.227.161.12 and 71.250.0.12.

Copper Contributor
Posts: 45
Registered: ‎12-02-2008

Re: Default DNS server IP addresses

Message 3 of 16 (135,335 Views)

I waited for around 20 minutes for a support rep to finally show up on the live chat support Smiley Wink My question to them was, "What are the IP addresses of the default DNS servers that I should use for Prince George's County, MD?" Those were the ones they provided. 

Silver Contributor IV
Posts: 1,217
Registered: ‎12-14-2009

Re: Default DNS server IP addresses

Message 4 of 16 (135,329 Views)

Well....Level 3 DNS servers should be ok to use but I still don't buy they're a FiOS default.

 

If you login to your Actiontec's interface and look at the System Monitoring page, what does it say the DNS servers are?

Copper Contributor
Posts: 45
Registered: ‎12-02-2008

Re: Default DNS server IP addresses

Message 5 of 16 (135,321 Views)

71.252.0.12
68.237.161.12

Silver Contributor IV
Posts: 1,217
Registered: ‎12-14-2009

Re: Default DNS server IP addresses

Message 6 of 16 (135,312 Views)

Those are Verizon DNS servers and I'd say they are the Verizon defaults in your area.

Platinum Contributor I
Posts: 5,881
Registered: ‎07-22-2009

Re: Default DNS server IP addresses

Message 7 of 16 (135,297 Views)

Those are old BBN/Genuity/Level 3 DNS's which IMO ROCK.

 

I like those dns's better than any others personally.

 

The default Verizon DNS's are default by region, so a list of dns's would be pretty large.     

Copper Contributor
Posts: 45
Registered: ‎12-02-2008

Re: Default DNS server IP addresses

Message 8 of 16 (135,295 Views)

Interesting. Wonder why that wasn't what they provided. Thanks for the explanation.

Silver Contributor IV
Posts: 1,217
Registered: ‎12-14-2009

Re: Default DNS server IP addresses

Message 9 of 16 (135,281 Views)

If you want to see what DNS servers work best in your location, get GRC's DNS Benchmark utlity (free) here:

 

http://www.grc.com/dns/benchmark.htm

 

It will show you what smokes and what pokes.  Smiley Happy

Copper Contributor
Posts: 45
Registered: ‎12-02-2008

Re: Default DNS server IP addresses

Message 10 of 16 (135,280 Views)

Hubrisnxs - 71.252.0.12 & 68.237.161.12 are the ones you prefer?

 

 

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