Here is the iPhone SE availability for the morning of April 19th, 2020. Many models have gone from a 2 day window, say May 5th to May 7th, to a week long delivery window of May 6th to May 13th.
Changes for Apple
	- ATT - 256GB White iPhone SE has changed from May 5 - May 7 to May 6 - May 13
- ATT - 128GB (PRODUCT)Red iPhone SE has changed from May 5 - May 7 to May 6 - May 13
- Sprint - 256GB White iPhone SE has changed from May 5 - May 7 to May 6 - May 13
- T-Mobile - 64GB White iPhone SE has changed from May 5 - May 7 to May 6 - May 13
- T-Mobile - 128GB White iPhone SE has changed from May 5 - May 7 to May 6 - May 13
- T-Mobile - 256GB White iPhone SE has changed from May 5 - May 7 to May 6 - May 13
- T-Mobile - 128GB Black iPhone SE has changed from May 5 - May 7 to May 6 - May 13
- T-Mobile - 256GB Black iPhone SE has changed from May 5 - May 12 to May 6 - May 13
- T-Mobile - 64GB (PRODUCT)Red iPhone SE has changed from May 5 - May 12 to May 6 - May 13
- T-Mobile - 128GB (PRODUCT)Red iPhone SE has changed from May 5 - May 12 to May 6 - May 13
- T-Mobile - 256GB (PRODUCT)Red iPhone SE has changed from May 5 - May 12 to May 6 - May 13
- Verizon - 128GB White iPhone SE has changed from May 5 - May 7 to May 6 - May 13
- Verizon - 64GB Black iPhone SE has changed from May 5 - May 7 to May 6 - May 13
- Sim-Free - 256GB White iPhone SE has changed from May 5 - May 7 to May 6 - May 13
iPhone SE
	
		
			| ATT | 64GB | 128GB | 256GB | 
	
	
		 
			| White | May 6 - May 8 | May 6 - May 8 | May 6 - May 13 | 
		 
			| Black | May 6 - May 8 | May 6 - May 8 | May 6 - May 13 | 
		
			| (PRODUCT)Red | May 6 - May 8 | May 6 - May 13 | May 6 - May 13 | 
	
	
		
			| Sprint | 64GB | 128GB | 256GB | 
	
	
		 
			| White | May 6 - May 8 | May 6 - May 8 | May 6 - May 13 | 
		
			| Black | May 6 - May 8 | May 6 - May 8 | May 6 - May 13 | 
		
			| (PRODUCT)Red | May 6 - May 13 | May 6 - May 13 | May 6 - May 13 | 
	
	
		
	 		| T-Mobile | 64GB | 128GB | 256GB | 
	
	
		 
			| White | May 6 - May 13 | May 6 - May 13 | May 6 - May 13 | 
		
			| Black | May 6 - May 8 | May 6 - May 13 | May 6 - May 13 | 
		
			| (PRODUCT)Red | May 6 - May 13 | May 6 - May 13 | May 6 - May 13 | 
	
	
		
			| Verizon | 64GB | 128GB | 256GB | 
	
	
		 
			| White | May 6 - May 8 | May 6 - May 13 | May 6 - May 13 | 
		
			| Black | May 6 - May 13 | May 6 - May 13 | May 6 - May 13 | 
		
			| (PRODUCT)Red | May 6 - May 13 | May 6 - May 13 | May 6 - May 13 | 
	
	
		
			| Sim-Free | 64GB | 128GB | 256GB | 
	
	
		 
			| White | May 6 - May 8 | May 6 - May 8 | May 6 - May 13 | 
		
			| Black | May 6 - May 8 | May 6 - May 8 | May 6 - May 13 | 
		
			| (PRODUCT)Red | May 6 - May 13 | May 6 - May 13 | May 6 - May 13 |