in-addr.arpa subdomain problem

I am setting up a new server running bind 9.2.1 to replace
a bind 8.1.2 server. In testing this I am able to do
reverse lookups on class C subnets but not subdomains
(e.g. /25). If I am reading dig output properly the server
is directing request to root servers rather than handling
it locally.

------------

zone "128-255.12.12.12.in-addr.arpa" in {
type master;
file "12.12.12.128.reverse.db";
allow-update { none; };
};

------------

;12.12.12.128.reverse.db
;
$TTL 3h
@ IN SOA ns1.domain.com. hostmaster.domain.com. (
2004080501 ; serial
3h ; refresh
1h ; retry
15d ; expire
1h ) ; neg cache ttl

@ IN NS ns1.domain.com.
@ IN NS ns2.domain.com.

129 IN PTR host1.domain.com.
130 IN PTR host2.domain.com.

------------

[user@ns1]# dig @ns1 12.12.12.129

; <<>> DiG 9.2.1 <<>> @ns1 12.12.12.129
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 29600
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1,
ADDITIONAL: 0

;; QUESTION SECTION:
;12.12.12.129. IN A

;; AUTHORITY SECTION:
.. 10800 IN SOA
A.ROOT-SERVERS.NET. NSTLD.VERISIGN-GRS.COM. 2004080401
1800 900 604800 86400

;; Query time: 16 msec
;; SERVER: 13.13.13.13#53(ns1)
;; WHEN: Thu Aug 5 10:51:12 2004
;; MSG SIZE rcvd: 106