sibling 2823651 seeker
sibling 2823652 manager
sibling 2823654 seeker
sibling 2823662 advisor
2823654 (us) is later than 2823651

and the output is

>> TelcoLog.find_by_ngtoken(2823651)
=> nil
>> TelcoLog.find_by_ngtoken(2823654)
=> #<TelcoLog id: 11343010, ngtoken: 2823654, stage: "leg_start", created_at: "2009-12-01 09:38:13", data: "tel:+14409646602", comment: "seeker", telco_timestamp: "2009-12-01 09:38:13">