Reverse DNS on a /25 called 127-1?

[Yann Sommer]

Hello,

My new upstream provider from which I obtained 66.221.101.0/25 (
66.221.101.1 - 66.221.101.127) instructed me to set up reverse DNS as
following:

<quote>
We have reverse delegation setup with the info you provided.
Our NS will forward requests to your NS using this zone
"127-1.101.221.66.IN-ADDR.ARPA."
for example:
ns1.soultwins.com. = 10.127-1.101.221.66.IN-ADDR.ARPA.
ns2.soultwins.com. = 15.127-1.101.221.66.IN-ADDR.ARPA.
</quote>

So I went ahead and set up 127-1.101.221.66.in-addr.arpa. (as strange as
this sounded to me), as following:

<quote from master/127-1.101.221.66.in-addr.arpa>
$ttl 38400
$ORIGIN 127-1.101.221.66.in-addr.arpa.

@       IN      SOA     ns1.soultwins.com. hostmaster.soultwins.com. (
                        1689246702
                        10800
                        3600
                        604800
                        38400 )
        IN      NS      ns1.soultwins.com.
        IN      NS      ns2.soultwins.com.
1       IN      PTR     soultwins.com.
...
127     IN      PTR     4911.soultwins.com.
</quote>

and the zone into my named.conf as following:

<quote named.conf>
zone "127-1.101.221.66.in-addr.arpa." {
 type master;
 file "master/127-1.101.221.66.in-addr.arpa";
       notify yes;
};
</quote>

That said and done, HUP'ed bind and got the following results:

ns1# nslookup 66.221.101.1
18-Apr-2002 17:19:37.674 queries:
XX+/66.221.101.10/1.0.0.127.in-addr.arpa/PTR/IN
Server:  localhost.soultwins.com
Address:  127.0.0.1

18-Apr-2002 17:19:37.675 queries:
XX+/66.221.101.10/1.101.221.66.in-addr.arpa/PTR/IN
18-Apr-2002 17:19:37.678 lame-servers: Lame server on
'1.101.221.66.in-addr.arpa' (in '101.221.66.IN-ADDR.ARPA'?):
[216.221.162.81].53 'NS.CIHOST.COM'
18-Apr-2002 17:19:37.688 lame-servers: Lame server on
'1.101.221.66.in-addr.arpa' (in '101.221.66.IN-ADDR.ARPA'?):
[216.221.162.111].53 'NS2.CIHOST.COM'
*** localhost.soultwins.com can't find 66.221.101.1: Server failed
18-Apr-2002 17:20:15.253 default: ns_forw:
query(1.101.221.66.in-addr.arpa) All possible A RR's lame

I tried numerous different ways, including calling the zone
0/25.101.221.66.in-addr.arpa which yielded the same results. Only if I
would call the zone 101.221.66.in-addr.arpa (and thus claiming the whole
/24 as mine), reverse DNS would locally resolve, but not populate across
the internet.

What am I missing, or any ideas as to what I've been doing wrong?

Thank you very much,

Yann