Channel numbers jump randomly. 101, then 205, then 99, then 450. The numbers aren't sequential. Your reseller's numbering is chaotic. You can't browse by number. Everything is out of order.
A British IPTV reseller whose channel numbers are out of order has no numbering scheme. Numbers are assigned randomly. You can't predict what comes next. Browsing by number is impossible.
The British IPTV services with ordered numbering have sequential numbers. You can browse logically. The reseller who didn't order numbers leaves you with chaos.
The IPTV reseller panel includes number ordering. The reseller can assign sequential numbers. It takes minutes. The resellers who skip this leave you with random jumps.
The IPTV reseller UK operators who use number browsing would notice the chaos. They'd order numbers. The resellers who never use numbers don't know that you can't browse sequentially.
Here's a scenario that makes number browsing useless. You're at channel 101. You press channel up expecting 102. You get 205. You press up again expecting 206. You get 99. The numbers jump all over. You can't predict anything.
Browsing by channel number is impossible. The reseller's random numbering has disabled sequential navigation.
I've tested number ordering across dozens of resellers. Most have sequential numbers. Some have random jumps. The reseller's configuration determines whether you can browse by number.
A sequential British IPTV reseller will have channel numbers in logical order. You can test this by pressing channel up and down. If numbers increase and decrease predictably, ordering is good. If they jump randomly, it's not.
The same principle applies to number gaps. Some resellers skip numbers randomly. The careful reseller uses consistent spacing.
A logical British IPTV service will have numbers that make sense. Test by browsing through channels. If you can predict the next number, ordering is good.