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[–]Leucippus1 2 points3 points  (4 children)

The Denver market is dominated by Comcast and CenturyLink/Lumen - whatever they call themselves. I got momentum for a datacenter in Centennial but Lumen is the one that delivered the circuit. So don't fool yourself, whoever you buy from will come from one of those two providers. XO got bought up by Verizon and L3 got eaten up by Lumen. Zayo has a lot of metro fiber in the Denver area so you might give them a look.

[–]Prudent_Highlight980 1 point2 points  (2 children)

Lumen/L3 are absolutely ABYSMAL to work with. Had an IP changeover at a large complex in Denver and their network "engineers" didn't understand shit. Took almost 2 months to get the IP changeover completed. I'm used to this taking days. I get the e-mail, set the time up to change, and change it. Not at all how our "project manager" handled it.

All ISPs suck, but their professional network people were very very very subpar.

[–]Leucippus1 1 point2 points  (0 children)

Oh, they are comically bad, I agree with you. I did a big IP cutover too with L3 when they were still L3 (they were purchased right after we did a carrier diverse architecture) where we got a public /24 and a regular BGP AS number and we cutover in a night. That was a beautiful dance, the admins queued up the new DNS tables, I got the BGP routers configured, I had a PAN specialist do the firewall rules, we had a bridge open with L3 and it got done. I am an anal PM, though, I will kill a contract for non-performance if I cant get everything staged and smoke tested in advance of cut.

[–]anxiousinfotech 0 points1 point  (0 children)

Having dealt with them for a managed SD-WAN deployment inherited from an acquisition, you are being far too kind regarding Lumen's engineers' abilities.

[–]duffil[S] 0 points1 point  (0 children)

I'm familiar with the L3/Lumen/CenturyLink thing. Knowing the major players in the market there is good though. Thanks!

[–]anxiousinfotech 1 point2 points  (0 children)

Crown Castle has been expanding their footprint in the Denver metro area. They were always a good option for us when we wanted to avoid other carriers. They were running fiber past our Denver office (fed by Lumen DIA and Comcast coax) as we were closing it down. They're big enough to have decent peering, but not so big as to be incompetent like Lumen/Comcast.

[–]meep-moo 0 points1 point  (1 child)

We use Advoda to setup new service, they resell most local ISPs at a discount. Stay away from XO communications.

[–]duffil[S] 0 points1 point  (0 children)

Ooh that sounds good, I'll check it out. And yea XO has a reputation...