AS64204 TETRA TECH, INC. 🇺🇸 US

Announcing 8 prefixes, seen at the RIS collectors.

IPv4 prefixes

2,048 (8 × /24)

IPv6 prefixes

Upstreams

transit providers observed

Peers

settlement-free adjacencies

Downstreams

transit customers observed

Customer cone

ASes reachable through it

Registry and operator data

AS number: AS64204
Name: TETRA TECH, INC.
Organisation: TETRA TECH, INC.
Country: 🇺🇸 US
RIR: ARIN
Allocated: 2015-09-01

RPKI coverage of this AS

Its own announcements, validated against the current ROA set

1 valid (12.5%) 0 invalid (0.0%) 7 no ROA (87.5%)

Whois

Fetched from whois.arin.net

ASNumber:       64204
ASName:         TTEK-12
ASHandle:       AS64204
RegDate:        2015-09-01
Updated:        2019-03-21
Ref:            https://rdap.arin.net/registry/autnum/64204

OrgName:        TETRA TECH, INC.
OrgId:          TETRA-15
Address:        3475 E FOOTHILL BLVD.
City:           PASADENA
StateProv:      CA
PostalCode:     91107
Country:        US
RegDate:        2009-01-21
Updated:        2026-07-08
Ref:            https://rdap.arin.net/registry/entity/TETRA-15

OrgTechHandle: LOMBA72-ARIN
OrgTechName:   Lombardi, Michael
OrgTechPhone:  +1-518-368-6453
OrgTechEmail:  michael.lombardi@tetratech.com
OrgTechRef:    https://rdap.arin.net/registry/entity/LOMBA72-ARIN

OrgDNSHandle: KOBAY18-ARIN
OrgDNSName:   Kobayashi, Sean
OrgDNSPhone:  +1-626-470-2401
OrgDNSEmail:  sean.kobayashi@tetratech.com
OrgDNSRef:    https://rdap.arin.net/registry/entity/KOBAY18-ARIN

OrgNOCHandle: LOMBA72-ARIN
OrgNOCName:   Lombardi, Michael
OrgNOCPhone:  +1-518-368-6453
OrgNOCEmail:  michael.lombardi@tetratech.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/LOMBA72-ARIN

OrgNOCHandle: MOORH10-ARIN
OrgNOCName:   Moorhead, Chris
OrgNOCPhone:  +1-859-514-8756
OrgNOCEmail:  chris.moorhead@tetratech.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/MOORH10-ARIN

OrgNOCHandle: ROYYV-ARIN
OrgNOCName:   Roy, Yves
OrgNOCPhone:  +1-418-871-8151
OrgNOCEmail:  yves.roy@tetratech.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/ROYYV-ARIN

OrgRoutingHandle: LOMBA72-ARIN
OrgRoutingName:   Lombardi, Michael
OrgRoutingPhone:  +1-518-368-6453
OrgRoutingEmail:  michael.lombardi@tetratech.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/LOMBA72-ARIN

OrgTechHandle: ROYYV-ARIN
OrgTechName:   Roy, Yves
OrgTechPhone:  +1-418-871-8151
OrgTechEmail:  yves.roy@tetratech.com
OrgTechRef:    https://rdap.arin.net/registry/entity/ROYYV-ARIN

OrgAbuseHandle: LOMBA72-ARIN
OrgAbuseName:   Lombardi, Michael
OrgAbusePhone:  +1-518-368-6453
OrgAbuseEmail:  michael.lombardi@tetratech.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/LOMBA72-ARIN

OrgTechHandle: MOORH10-ARIN
OrgTechName:   Moorhead, Chris
OrgTechPhone:  +1-859-514-8756
OrgTechEmail:  chris.moorhead@tetratech.com
OrgTechRef:    https://rdap.arin.net/registry/entity/MOORH10-ARIN

OrgAbuseHandle: LEVIN193-ARIN
OrgAbuseName:   Levine, Darrious
OrgAbusePhone:  +1-626-470-2566
OrgAbuseEmail:  darrious.levine@tetratech.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/LEVIN193-ARIN

OrgAbuseHandle: ROYYV-ARIN
OrgAbuseName:   Roy, Yves
OrgAbusePhone:  +1-418-871-8151
OrgAbuseEmail:  yves.roy@tetratech.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ROYYV-ARIN

OrgDNSHandle: MOORH10-ARIN
OrgDNSName:   Moorhead, Chris
OrgDNSPhone:  +1-859-514-8756
OrgDNSEmail:  chris.moorhead@tetratech.com
OrgDNSRef:    https://rdap.arin.net/registry/entity/MOORH10-ARIN

OrgAbuseHandle: MOORH10-ARIN
OrgAbuseName:   Moorhead, Chris
OrgAbusePhone:  +1-859-514-8756
OrgAbuseEmail:  chris.moorhead@tetratech.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/MOORH10-ARIN

RAbuseHandle: ROYYV-ARIN
RAbuseName:   Roy, Yves
RAbusePhone:  +1-418-871-8151
RAbuseEmail:  yves.roy@tetratech.com
RAbuseRef:    https://rdap.arin.net/registry/entity/ROYYV-ARIN

RNOCHandle: LOMBA72-ARIN
RNOCName:   Lombardi, Michael
RNOCPhone:  +1-518-368-6453
RNOCEmail:  michael.lombardi@tetratech.com
RNOCRef:    https://rdap.arin.net/registry/entity/LOMBA72-ARIN

RNOCHandle: JSH254-ARIN
RNOCName:   SHEN, JOE
RNOCPhone:  +1-626-470-2383
RNOCEmail:  JOE.SHEN@tetratech.com
RNOCRef:    https://rdap.arin.net/registry/entity/JSH254-ARIN

RNOCHandle: PURRI-ARIN
RNOCName:   Purrier, William
RNOCPhone:  +1-916-853-4565
RNOCEmail:  bill.purrier@tetratech.com
RNOCRef:    https://rdap.arin.net/registry/entity/PURRI-ARIN

RTechHandle: LOMBA72-ARIN
RTechName:   Lombardi, Michael
RTechPhone:  +1-518-368-6453
RTechEmail:  michael.lombardi@tetratech.com
RTechRef:    https://rdap.arin.net/registry/entity/LOMBA72-ARIN

RAbuseHandle: PURRI-ARIN
RAbuseName:   Purrier, William
RAbusePhone:  +1-916-853-4565
RAbuseEmail:  bill.purrier@tetratech.com
RAbuseRef:    https://rdap.arin.net/registry/entity/PURRI-ARIN

RNOCHandle: ROYYV-ARIN
RNOCName:   Roy, Yves
RNOCPhone:  +1-418-871-8151
RNOCEmail:  yves.roy@tetratech.com
RNOCRef:    https://rdap.arin.net/registry/entity/ROYYV-ARIN

RTechHandle: PURRI-ARIN
RTechName:   Purrier, William
RTechPhone:  +1-916-853-4565
RTechEmail:  bill.purrier@tetratech.com
RTechRef:    https://rdap.arin.net/registry/entity/PURRI-ARIN

RTechHandle: JSH254-ARIN
RTechName:   SHEN, JOE
RTechPhone:  +1-626-470-2383
RTechEmail:  JOE.SHEN@tetratech.com
RTechRef:    https://rdap.arin.net/registry/entity/JSH254-ARIN

RTechHandle: ROYYV-ARIN
RTechName:   Roy, Yves
RTechPhone:  +1-418-871-8151
RTechEmail:  yves.roy@tetratech.com
RTechRef:    https://rdap.arin.net/registry/entity/ROYYV-ARIN

RAbuseHandle: JSH254-ARIN
RAbuseName:   SHEN, JOE
RAbusePhone:  +1-626-470-2383
RAbuseEmail:  JOE.SHEN@tetratech.com
RAbuseRef:    https://rdap.arin.net/registry/entity/JSH254-ARIN

RAbuseHandle: LOMBA72-ARIN
RAbuseName:   Lombardi, Michael
RAbusePhone:  +1-518-368-6453
RAbuseEmail:  michael.lombardi@tetratech.com
RAbuseRef:    https://rdap.arin.net/registry/entity/LOMBA72-ARIN