Gentlemen,
I want to create a rule to grant me the IP of the banks when I write the name of any bank, if anyone knows how to do it, I thank you.

Your requirement is lacking too many details to sufficiently address...........
For example. Do you mean writing the banks name on toilet paper in a bar??

Can anyone guide me?

I just did. Provide much more detail on your requirements.

ok, I want to make a rule in my RB to create a list of addresses, in order to obtain the IPs of the main banks in my country, understand me?

I have this rule

/ip firewall filter
add action=add-dst-to-address-list address-list="BANCOS LIST" address-list-timeout=10m \
chain=forward comment="BANCOS LIST" content=banco in-interface="PUENTE 1" port=443 \
protocol=tcp

That is a great improvement!! Thanks.

Let me see if I understand......
You want the router to be given a script (set of commands) that say
Scan all the IPs in the world (ipv4 and ipv6?)
Figure out which of those IPs belong to banks.
Figure out which of the bank IPs belong to a specific country
Write those IPs to an address list on my router.

all the IP of the world's banks, not only the banks of my country, can it be done?

How do you know that an IP belongs to a bank?
And what will you do with this information? Why do you need it?

is to make it happen in fasstrack for the RB

Your request is way too ambitious and unlikely.

The easiest way is to look at the different RIR's, and find banking organisations, then you will have their IP blocks. Not all banks are likely to have their own allocation though.

Then you get those who host their user services front-end in a cloud like AWS or cloudflare.

Then you get those who use multiple providers and different IP's for redundancy etc.

Its just unfeasible to build such a list worldwide, especially not automagically. At best you could target a few banks and do your research and build a fairly comprehensive list just doing DNS and WHOIS lookups, but this would take forever to go worldwide.

is to make it happen in fasstrack for the RB

Example of a https://en.wikipedia.org/wiki/XY_problem

Describe what you are trying to achieve, perhaps it can be done without creating address lists.

You guys are spoiling all the fun. I was going to suggest wrapping the router in tin foil next!!

Consider a bank. They may have several branches, each with it's own backhaul to corporate and probably a local internet connection for employee traffic (to keep it off the MPLS or whatever). Then corporate likely has several address ranges of their own for self-hosted services, then they likely have a footprint in one or more cloud vendors, each with their own address space, and if they're doing it right, that address space can change dynamically as server load changes and new instances of microservices are brought online and then destroyed. Finally, they likely engage with SaaS providers for certain applications, and those have their own cloud address spaces.

That's just one bank.

How do you propose you'd collect all that? I have done network assessments for organizations that take days to map this stuff out for one small-to-medium sized bank. How do you expect to do this on a global scale?

Finally, the important question seems to be this - why? What purpose do you have for knowing all the IPs associated with every bank employee in the world?

I guess the OP just wants a simple thing - when his customer goes to his internet banking webpage, it needs to work faster than his otherwise limited stuff. No matter which bank that may be.

Simple answer - not possible.

most banks use https right. why not prioritise https traffic up to a certain volume?

might give some improvement...