Reserve IP address in a specific region/country

Here seems to be a way of finding public IP address ranges in a certain region:

$ curl -s https://docs.oracle.com/en-us/iaas/tools/public_ip_ranges.json | jq '.regions[] | select(.region == "me-jeddah-1")'
{
  "region": "me-jeddah-1",
  "cidrs": [
    {
      "cidr": "150.230.48.0/21",
      "tags": [
        "OCI"
      ]
    },
    {
      "cidr": "150.230.240.0/21",
      "tags": [
        "OCI"
      ]
    },
    {
      "cidr": "158.101.224.0/19",
      "tags": [
        "OCI"
      ]
    },
    {
      "cidr": "193.122.64.0/19",
      "tags": [
        "OCI"
      ]
    },
    {
      "cidr": "207.135.30.0/23",
      "tags": [
        "OCI"
      ]
    },
    {
      "cidr": "134.70.100.0/22",
      "tags": [
        "OSN",
        "OBJECT_STORAGE"
      ]
    },
    {
      "cidr": "140.91.42.0/23",
      "tags": [
        "OSN"
      ]
    },
    {
      "cidr": "140.204.34.128/25",
      "tags": [
        "OSN"
      ]
    },
    {
      "cidr": "192.29.112.0/20",
      "tags": [
        "OSN"
      ]
    },
    {
      "cidr": "192.29.224.0/22",
      "tags": [
        "OSN"
      ]
    },
    {
      "cidr": "192.29.232.0/25",
      "tags": [
        "OSN"
      ]
    }
  ]
}

But doing a whois on one of those IP addresses doesn't seem to indicate it's Saudi Arabian:

$ whois 192.29.232.10


% IANA WHOIS server
% for more information on IANA, visit http://www.iana.org
% This query returned 1 object


refer:        whois.arin.net


inetnum:      192.0.0.0 - 192.255.255.255
organisation: Administered by ARIN
status:       LEGACY


remarks:      192.0.2.0/24  reserved for TEST-NET-1 [RFC5737].
remarks:      Complete registration details for 192.0.2.0/24 are found
remarks:      iniana-ipv4-special-registry.192.88.99.0/24 reserved for
remarks:      6to4 Relay Anycast [RFC7526]Complete registration
remarks:      details for 192.88.99.0/24 are found
remarks:      iniana-ipv4-special-registry.192.88.99.2/32 reserved for
remarks:      6a44 Relay Anycast [RFC6751](possibly collocated with
remarks:      6to4 Relay at 192.88.99.1/32 - see
remarks:      [RFC7526])192.168.0.0/16 reserved for Private-Use
remarks:      Networks [RFC1918]. Complete registration details for
remarks:      192.168.0.0/16 are found iniana-ipv4-special-registry.
remarks:      192.0.0.0/24 reserved for IANA IPv4 Special Purpose
remarks:      Address Registry [RFC5736]. Complete registration
remarks:      details for 192.0.0.0/24 are found
remarks:      iniana-ipv4-special-registry.


whois:        whois.arin.net


changed:      1993-05
source:       IANA


# whois.arin.net


NetRange:       192.29.0.0 - 192.29.255.255
CIDR:           192.29.0.0/16
NetName:        ORACLE-BRM6
NetHandle:      NET-192-29-0-0-1
Parent:         NET192 (NET-192-0-0-0-0)
NetType:        Direct Allocation
OriginAS:
Organization:   Oracle Corporation (ORACLE-4)
RegDate:        1987-01-23
Updated:        2016-10-10
Ref:            https://rdap.arin.net/registry/ip/192.29.0.0




OrgName:        Oracle Corporation
OrgId:          ORACLE-4
Address:        500 Oracle Parkway
Address:        Attn: Domain Administrator
City:           Redwood Shores
StateProv:      CA
PostalCode:     94065
Country:        US
RegDate:        1988-04-29
Updated:        2021-08-02
Ref:            https://rdap.arin.net/registry/entity/ORACLE-4




OrgRoutingHandle: ORACL2-ARIN
OrgRoutingName:   ORACLEROUTING
OrgRoutingPhone:  +1-800-392-2999
OrgRoutingEmail:  [email protected]
OrgRoutingRef:    https://rdap.arin.net/registry/entity/ORACL2-ARIN


OrgTechHandle: ORACL1-ARIN
OrgTechName:   ORACLE NIS
OrgTechPhone:  +1-650-506-2220
OrgTechEmail:  [email protected]
OrgTechRef:    https://rdap.arin.net/registry/entity/ORACL1-ARIN


OrgAbuseHandle: NISAM-ARIN
OrgAbuseName:   Network Information Systems Abuse Management
OrgAbusePhone:  +1-650-506-2220
OrgAbuseEmail:  [email protected]
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NISAM-ARIN