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A managed Amazon VPC component that lets resources in private subnets make outbound connections to the internet while blocking inbound ones, billed both per provisioned hour and per gigabyte processed.
No evidence-backed relationships are recorded.
A dev.to post pins outsized AWS bills on NAT gateway data-processing fees and prescribes VPC endpoints. Its own rates put the break-even at 629 GB a month for one interface endpoint in one availability zone.
Reality
NAT Gateway charges $0.045 an hour to exist and $0.045 a gigabyte to work in Virginia and Ohio. Gateway endpoints for S3 and DynamoDB bypass the second meter for free, but only Flow Logs say how much they carry.
Reality
Most VPC debugging is guesswork because the topology arrived as a module someone else wrote. The arithmetic that replaces the guessing is small, but the one number you cannot revise afterwards is the prefix at the top.
Reality
A dev.to breakdown pairs each idle AWS resource type with a measurement window and a monthly list price. Eleven such resources add up to about $1,016 a month.
Reality
A June 2026 AWS audit found the biggest fixed line was a framework default, not a feature. The test that caught it was pricing each charge at 100x usage instead of today's.
Reality