Step 1.
summary:
Esri's suggest api does not search against on street number.
For example, I want to see how many address has street number 3060, what are they?
By default, esri would not tell you unless you add at least 1 letter of street name,
For example "3060 s", esri will popup "3060 slauson", without first street letter "s", would not work.
For 911 dispatcher, by typing one more extra letter, wasting 1 more second, police officer will arrive 1 more sec late.
We try to save each sec we could.
When 911 dispatcher type "3060", they want to see "3060 slauson" popup.
esri software would not do that by default, but you could make a work around to fix that.
Esri would not do that has their concern ( I talk about later).
In the future I wish esri can give user an option to choose.
Esri should add a check box (yes, or no , allow seach on street number) above red box (see screen)

At the moment, before they make this option happen, we can make it work by a work around.
Step 2.
use a few big city or county as sample to test
City of Chicago, address locator is here, use 2632, for advance street number search.
https://transparentgov.net/json2tree/esri/server/folder2.html?org=https%3A%2F%2Fgisapps.cityofchicago.org%2Farcgis%2Frest%2Fservices&url=https%3A%2F%2Fgisapps.cityofchicago.org%2Farcgis%2Frest%2Fservices&arcgis_online_token=&timeout=9000&select_folder=6&select_layer=-1&select_folder_text=AddressPoints+%3Csup%3EGeocodeServer%3C%2Fsup%3E&select_layer_text=AddressPoints+%3Csup%3EGeocodeServer%3C%2Fsup%3E

Step 3.
use ESRI's build-in address search bar, search for chicago, and go there first
https://transparentgov.net/json2tree/gateway/feature-layer/geocode-suggest-advanced-number-search.html?backgroundlayerurl=https%3A%2F%2Fgisapps.cityofchicago.org%2Farcgis%2Frest%2Fservices%2FAddressPoints%2FGeocodeServer&_center_lat=33.928799999999995&_center_long=-118.2468&_center_zoom=13&panto=0

Step 4.
keep zoom in on map until you see house roof,
house number shows up, pick any number, for example 2818,
you will see all address start with 2818 in chicago listed here
click any of them, will bring you there
https://transparentgov.net/json2tree/gateway/feature-layer/geocode-suggest-advanced-number-search.html?backgroundlayerurl=https%3A%2F%2Fgisapps.cityofchicago.org%2Farcgis%2Frest%2Fservices%2FAddressPoints%2FGeocodeServer&_center_lat=41.93778514486899&_center_long=-87.698624389108&_center_zoom=20&panto=0

Step 5.
Los Angeles County's address locator is here
use 2632
https://transparentgov.net/json2tree/esri/server/folder.html?org=https%3A%2F%2Fpublic.gis.lacounty.gov%2Fpublic%2Frest%2Fservices&url=https%3A%2F%2Fpublic.gis.lacounty.gov%2Fpublic%2Frest%2Fservices&arcgis_online_token=&timeout=9000&select_folder=5&select_layer=-1&select_folder_text=CAMS_Locator+%3Csup%3EGeocodeServer%3C%2Fsup%3E&select_layer_text=CAMS_Locator+%3Csup%3EGeocodeServer%3C%2Fsup%3E

Step 6.
zoom in to map until you see roof, pick any house number
for example, search 1159, the result comes from all 88 cities in LA county.
all kinds of cities 1159 address popup.
now you see the problem, not all address is real address, most of them are fake address,
when you click any of result, it did not bring you there, only if click a real address.
this is because of Los angeles county GIS guy did not remove all those fake address. ( I have another post to show you how to remove fake address )
https://transparentgov.net/json2tree/gateway/feature-layer/geocode-suggest-advanced-number-search.html?backgroundlayerurl=https%3A%2F%2Fpublic.gis.lacounty.gov%2Fpublic%2Frest%2Fservices%2FCAMS_Locator%2FGeocodeServer&_center_lat=33.928799999999995&_center_long=-118.2468&_center_zoom=13&panto=0

Step 7.
if you search 1159 on google map, depending on your map boundary, google only gives you a few best results, not list all address start with 1159 like esri did. 911 needs list all 1159 address within a city. Google map is not fit for this function.
https://www.google.com/maps/@33.9879558,-118.1956878,63286m/data=!3m1!1e3?authuser=0&entry=ttu&g_ep=EgoyMDI1MDkxNS4wIKXMDSoASAFQAw%3D%3D

Step 8.
the other model 2630, 2631 does not have search house number function, they just use what ever esri provided default capability.
if you search house number on 2630, 2631, there will be no result found.
Model 2631 is specially created to fulfil search number job.
Step 9.
None of above city, county has search POI capability, if you search business name, you will get EMPTY result.
Step 10.
LA county did not remove fake address, these people are talking about this issue here
https://community.esri.com/t5/arcgis-pro-ideas/geocoder-suggestions-list-in-search-should-not/idi-p/936763

Step 11.
google search for:
why suggest api does not search on number while arc pro locator does
https://www.google.com/search?q=why+suggest+api+does+not+search+on+number+while+arc+pro+locator+does+site:community.esri.com&sca_esv=348adf5b6927ae42&rlz=1C1RXQR_enUS1149US1149&sxsrf=AE3TifOmHTmd8eOBNCAC2kNjSoDSVJtKZA:1758060795062&sa=X&ved=2ahUKEwiRsLvppt6PAxWJH0QIHfTNM34QrQIoAnoECCQQAw&biw=1920&bih=945&dpr=1
Step 12.
https://community.esri.com/t5/arcgis-enterprise-portal-questions/locator-with-suggestions-not-happening/td-p/1391543/page/2
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