Index: sys/netinet/tcp_subr.c
===================================================================
--- sys/netinet/tcp_subr.c
+++ sys/netinet/tcp_subr.c
@@ -1356,6 +1356,10 @@
 				xt.xt_socket.xso_protocol = IPPROTO_TCP;
 			}
 			xt.xt_inp.inp_gencnt = inp->inp_gencnt;
+			xt.xt_cc_name[0] = '\0';
+			if (CC_ALGO(&xt.xt_tp) != NULL)
+				strlcpy(xt.xt_cc_name, CC_ALGO(&xt.xt_tp)->name,
+					sizeof(xt.xt_cc_name));
 			INP_RUNLOCK(inp);
 			error = SYSCTL_OUT(req, &xt, sizeof xt);
 		} else
Index: sys/netinet/tcp_var.h
===================================================================
--- sys/netinet/tcp_var.h
+++ sys/netinet/tcp_var.h
@@ -590,6 +590,7 @@
 	struct	xsocket	xt_socket;
 	struct	xtcp_timer xt_timer;
 	u_quad_t	xt_alignment_hack;
+	char    xt_cc_name[TCP_CA_NAME_MAX];
 };
 #endif
 
Index: usr.bin/netstat/inet.c
===================================================================
--- usr.bin/netstat/inet.c
+++ usr.bin/netstat/inet.c
@@ -307,6 +307,7 @@
 	static int first = 1;
 	char *buf;
 	const char *vchar;
+	char *algo;
 	struct tcpcb *tp = NULL;
 	struct inpcb *inp;
 	struct xinpgen *xig, *oxig;
@@ -357,10 +358,12 @@
 			tp = &((struct xtcpcb *)xig)->xt_tp;
 			inp = &((struct xtcpcb *)xig)->xt_inp;
 			so = &((struct xtcpcb *)xig)->xt_socket;
+			algo = ((struct xtcpcb *)xig)->xt_cc_name;
 		} else {
 			inp = &((struct xinpcb *)xig)->xi_inp;
 			so = &((struct xinpcb *)xig)->xi_socket;
 			timer = NULL;
+			algo = NULL;
 		}
 
 		/* Ignore sockets for protocols other than the desired one. */
@@ -421,10 +424,10 @@
 				    "Proto", "Listen", "Local Address");
 			else if (Tflag)
 				xo_emit((Aflag && !Wflag) ?
-    "{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-18.18s} {T:/%s}" :
-    "{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-22.22s} {T:/%s}",
-				    "Proto", "Rexmit", "OOORcv", "0-win",
-				    "Local Address", "Foreign Address");
+    "{T:/%-5.5s} {T:/%-8.8s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-18.18s} {T:/%s}" :
+    "{T:/%-5.5s} {T:/%-8.8s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-22.22s} {T:/%s}",
+					"Proto", "CC Alg", "Rexmit", "OOORcv", "0-win",
+					"Local Address", "Foreign Address");
 			else {
 				xo_emit((Aflag && !Wflag) ?
     "{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-18.18s} {T:/%-18.18s}" :
@@ -478,6 +481,8 @@
 			xo_emit("{:protocol/%-3.3s%-2.2s/%s%s} ", "toe", vchar);
 		else
 			xo_emit("{:protocol/%-3.3s%-2.2s/%s%s} ", name, vchar);
+		if (istcp && Tflag)
+			xo_emit("{:cc/%-8.8s} ", algo);
 		if (Lflag) {
 			char buf1[15];