Use whois with the number preceded with "as".
Code:
whois as3134
OrgName: U.S. Agency for International Development
OrgID: UAID
Address: 1300 Pennsylvania Ave
City: Washington
StateProv: DC
PostalCode: 20523
Country: US
ASNumber: 3134
ASName: USAID-ASN
ASHandle: AS3134
Comment:
RegDate: 1993-11-19
Updated: 2009-07-28
OrgAbuseHandle: JPB103-ARIN
OrgAbuseName: Bourdon, John P
OrgAbusePhone: +1-240-646-5005
OrgAbuseEmail: jbourdon@usaid.gov
OrgNOCHandle: HTL-ARIN
OrgNOCName: Lee, Herman T
OrgNOCPhone: +1-202-712-0436
OrgNOCEmail: hlee@usaid.gov
OrgTechHandle: JCB2-ARIN
OrgTechName: Biggs, Jeffrey C.
OrgTechPhone: +1-240-646-5003
OrgTechEmail: jbiggs@usaid.gov