The problem of adopting quantum-resistant cryptographic network protocols (PQC) is critically important to democratizing quantum computing. The problem is urgent because practical quantum computers, will break classical encryption in the next few decades. Past encrypted data has already been collected and can be cracked in the near future. The main challenges of adopting post-quantum cryptography lie in both algorithmic complexity and hardware/software/network implementation. The grand question is how existing cyberinfrastructure will support post-quantum cryptography remains unanswered. This paper shows the first preliminary measurement of PQC adoption in a national-scale supercomputing center, across the transportation and application layer of networks (TLS 1.3, SSH, DNSSEC, and QUIC) with regard to adopting NIST’s being discussed algorithms, such as CRYSTALS-Kyber for encryption, FALCON and SPINCS+ for digital signature, and KEMTALS for key exchange.