HomeASN LookupAS7018

AS7018 ATT-INTERNET4 - AT&T Enterprises, LLC

🇺🇸
ARINassignedASPA Published
Announced Prefixes (BGP)
674total
658 IPv416 IPv6
IPv4 Addresses
Allocated (RIR)88.3M
Announced (BGP)117.3M
IPv6 Addresses
Allocated (RIR)4.2×10³¹
Announced (BGP)4.2×10³¹
Prefix Limit (IPv4)
100,000
Prefix Limit (IPv6)
50
Country
🇺🇸 US
RIR
ARIN
Status
assigned
Allocated
1996-07-30

Routing hygiene

Score 49/100 · Medium risk
RPKI ROA coverage
53.3%
23 prefixes RPKI invalid
IRR route objects
30.4%
193 prefixes registered for another origin
Hijack signals
40
2 announced against others' ROAs, 38 own announced by others
Upstreams
7
diversity 71/100
  • 47% of announced prefixes (315 of 674) have no valid ROA, 23 of them RPKI invalid
  • 70% of announced prefixes (469 of 674) have no IRR route object for this ASN
  • 34 prefixes registered in IRR route objects for another active network and not authorized by a ROA
  • Announces 2 prefixes that RPKI assigns to another network (possible hijack or misconfiguration)
  • 38 prefixes of this ASN announced by another network against its ROAs

Based on 674 announced prefixes, updated daily (2026-10-26). How the score works · RPKI explained

Listed on the threat map (2026-10-26)

Large hosting providers appear because attackers rent their servers, not necessarily because of the operator.

Announced Prefixes

(BGP)674
|
Prefix
RPKI
IRR
Last Seen
12.0.0.0/8
No ROA
ARIN
2026-10-27
12.0.0.0/9
No ROA
ARIN
2026-10-27
12.38.168.0/22
 Valid
ARIN
2026-10-27
12.55.0.0/16
 Valid
ARIN
2026-10-27
12.56.0.0/13
 Valid
ARIN
2026-10-27
12.76.0.0/14
 Valid
ARIN
2026-10-27
12.80.0.0/12
 Valid
ARIN
2026-10-27
12.112.0.0/12
 Valid
ARIN
2026-10-27
12.128.0.0/9
No ROA
ARIN
2026-10-27
12.240.0.0/12
 Valid
ARIN
2026-10-27
1-10 of 674
1 / 68

Allocated Prefixes

(RIR)355
Prefix
Country
RIR
Status
12.0.0.0/8🇺🇸 USARINallocated
23.112.0.0/12🇺🇸 USARINallocated
23.132.116.0/24🇺🇸 USARINallocated
23.132.124.0/24🇺🇸 USARINallocated
23.132.180.0/24🇺🇸 USARINallocated
23.132.204.0/24🇺🇸 USARINallocated
23.132.212.0/24🇺🇸 USARINallocated
23.132.220.0/24🇺🇸 USARINallocated
32.0.0.0/9🇺🇸 USARINallocated
32.128.0.0/12🇺🇸 USARINallocated
1-10 of 355
1 / 36

All 674 announced prefixes of AS7018 →

Upstream Providers(1)

ASNName
AS0Transit-free

Downstream Customers(42)

ASNName
AS797AMERITECH-AS - AT&T Services, Inc.
AS1647🇺🇸INTEROP-AS - Interop Technologies
AS4466🇺🇸EASYLINK2 - AT&T Enterprises, LLC
AS6389BELLSOUTH-NET-BLK - AT&T Enterprises, LLC
AS7287PBI-NET-BLK2 - AT&T Enterprises, LLC
AS11185🇺🇸DREAMHACK - DreamHack Inc
AS11203🇺🇸MATRIX-BROADBAND - Matrix Broadband
AS11983🇺🇸TIKTOK-USDS - Tiktok U.S. Data Security Inc.
AS14103🇺🇸ACDNET-ASN1 - ACD.net
AS14299🇺🇸ADP1 - Automatic Data Processing, Inc.
AS14654🇺🇸WAYPORT - AT&T Enterprises, LLC
AS15304🇺🇸WASHOE-NET - Washoe County
AS18685🇺🇸PLANNET-OC-01 - PlanNet LLC
AS20057🇺🇸ATT-MOBILITY-LLC-AS20057 - AT&T Enterprises, LLC
AS21518🇺🇸INTEGRIS-HEALTH - Integris Health, Inc.
AS23028🇺🇸TEAM-CYMRU - Team Cymru Inc.
AS23082🇺🇸MPHI - Michigan Public Health Institute
AS23228🇺🇸AS1-CO-EL-PASO-TX - The County of El Paso
AS25823🇺🇸FLAG-ORG - CHURCH OF SCIENTOLOGY FLAG SERVICE ORGANIZATION, INC.
AS29298🇩🇪SUSE SUSE Software Solutions Germany GmbH
AS33069🇺🇸AS-BUSINESS-COMMUNICATIONS - BCI
AS36032🇺🇸WBD-AS36032 - WARNER BROS ENTERTAINMENT INC
AS36506🇺🇸WA-ASN - Woodward Academy
AS39961🇺🇸CCSF - San Francisco Department of Telecommunications and Information Services
AS40684🇺🇸STCLAIRCCC-AS - St. Clair County Community College
AS49935🇧🇪SmartEye SmartEye B.V
AS58965ABSPL-AS-IN - ANJANI BROADBAND SOLUTIONS PVT.LTD.
AS60092🇧🇬FIXITY FIXITY LLC
AS202142🇺🇸PACKETHARBOR PacketHarbor LLC
AS211757🇮🇸PANASCAIS Panascais ehf.
AS394737🇺🇸ANTS-TECHNOLOGY - ANTS-Technology
AS395500🇺🇸WILSONCREEK - Wilson Creek Communications, LLC
AS398026🇺🇸INDIANAPOLIS-AIRPORT-AUTHORITY - Indianapolis Airport Authority
AS398837🇺🇸HOPE - Hope Enterprise Corporation
AS400643🇺🇸ARROYO-SECO-01 - Arroyo Seco Wireless, LLC
AS401877🇺🇸WBC-ASN-03 - Weigel Broadcasting Co
AS401878🇺🇸WBC-ASN-04 - Weigel Broadcasting Co
AS401953🇺🇸SBA1DC - U.S. Small Business Administration
AS402530🇺🇸FELWARE - Felware
AS402540🇺🇸MJWINNOVATIONS - MJW
AS402657🇺🇸QUESTMARK - QuestMark
AS402714🇺🇸GCS-SAT-AS - Gravitas

BGP Neighbours

(seen in AS paths)

Upstreams (7)

Networks AS7018 hands its own prefixes to: transit providers, or peers at an exchange.

  • AS174Cogent Communications300
  • AS3356Level 3 Parent120
  • AS12956TELXIUS TELEFONICA GLOBAL SOLUTIONS SL106
  • AS2914NTT America104
  • AS1299TWELVE99 Arelion Sweden AB29
  • AS6939Hurricane Electric11
  • AS2497Internet Initiative Japan3

Downstreams (100 of 1,153)

Networks whose own prefixes AS7018 passes on: usually its customers.

  • AS20057AT&T Enterprises1,642
  • AS7287AT&T Enterprises624
  • AS2386AT&T Enterprises390
  • AS14654AT&T Enterprises217
  • AS2687AT&T Enterprises77
  • AS1906Northrop Grumman75
  • AS3573Accenture LLP71
  • AS6389AT&T Enterprises55
  • AS6621Hughes Network Systems55
  • AS11520Allstate Insurance Company50
  • AS5773BCN Telecom49
  • AS14962NCR Voyix Corporation49
  • AS15130U. S. Department Of Justice41
  • AS8030AT&T WorldNet40
  • AS2685AT&T Enterprises35
  • AS4010Headquarters, USAISC35
  • AS19957AT&T Enterprises34
  • AS4473AT&T Enterprises32
  • AS2688AT&T Enterprises31
  • AS168311Finity Americas31
  • AS393508PERSONAL NETWORK COMPUTING29
  • AS3379Kaiser Foundation Health Plan28
  • AS6501The Southern Company26
  • AS14858Hanson Information Systems, . / Family Net26
  • AS4249Eli Lilly And Company25
  • AS25993AT&T Enterprises25
  • AS6075Lockheed Martin Corporation24
  • AS25876Los Angeles Department Of Water & Power24
  • AS53508Cablelynx24
  • AS5655Decade Communications23
  • AS25609Detroit Medical Center23
  • AS400072THUNDERBOX23
  • AS1678The Dow Chemical Company22
  • AS797AT&T Services21
  • AS6431AT&T Enterprises21
  • AS35980Good Connections21
  • AS64200VIVID HOSTING21
  • AS4185AT&T Enterprises20
  • AS7838United Services Automobile Association20
  • AS1348California Department Of Transportation19
  • AS3709City Of San Antonio19
  • AS10273Florida Power & Light Company19
  • AS11355Shell Information Technology International19
  • AS26463Macomb Intermediate School District18
  • AS1856RTX BBN Technologies17
  • AS4454State Of Tennessee17
  • AS12007Raytheon Company17
  • AS22241IC2NET17
  • AS326677 Eleven17
  • AS11109State Of Alabama, Office Of Information Technology16
  • AS16816S Net16
  • AS36426IsoTropic Networks16
  • AS2686AT&T Enterprises15
  • AS8092Access Media Holdings15
  • AS11203Matrix Broadband15
  • AS16928RTX Corporation14
  • AS35950Volvo Group North America14
  • AS36224HCL AMERICA14
  • AS3423AT&T Enterprises13
  • AS13788US Courts13
  • AS13990County Of Orange13
  • AS14946Baptist Memorial Health Care Corporation13
  • AS23305Worthington Enterprises13
  • AS25813HOV Services13
  • AS394135Securitas Electronic Security13
  • AS71HP12
  • AS3555AT&T Technical Services Company12
  • AS4466AT&T Enterprises12
  • AS21433AccentureFSSC Accenture UK Limited12
  • AS29992U.S. Department Of Veterans Affairs12
  • AS31978PeakWiFi12
  • AS54221PATHFINDERS USA12
  • AS396206Franciscan Alliance12
  • AS401851County Of San Diego12
  • AS15139Panasonic Corporation Of North America11
  • AS15147DEPARTMENT OF HOMELAND SECURITY11
  • AS17029California Highway Patrol11
  • AS22040Linxus Internet11
  • AS29902Complete Computers11
  • AS33HP10
  • AS13695American Electirc Power10
  • AS14628Sacramento Municipal Utility District10
  • AS18701ConocoPhillips Company10
  • AS19483Wireless Maritime Services10
  • AS20258Analog Devices10
  • AS22197Apps Communications10
  • AS29766CHSPSC10
  • AS30091Access Cable Television10
  • AS53695Southern Illinois University At Edwardsville10
  • AS394446Newaygo County Regional Educational Service Agency10
  • AS1416Chicago Public Schools9
  • AS22787CommScope Technologies9
  • AS38191Infosys Technologies9
  • AS46093Palm Beach County9
  • AS46341California Public Utilities Commission9
  • AS395624General Atomics9
  • AS399641Wolverine Trading9
  • AS1261National Instruments Corporation8
  • AS1341Rockwell Collins8
  • AS4884Tarrant County Hospital District8

Other adjacent networks (22)

Adjacent to AS7018 in the transit part of AS paths: peers, providers or customers.

  • AS6762SEABONE NET TELECOM ITALIA SPARKLE S.P.A43
  • AS60068CDN77 Datacamp Limited23
  • AS53828NETWORK INNOVATIONS11
  • AS6461Zayo Bandwidth5
  • AS7876Dominion Energy Services4
  • AS26554US Signal Company, L.L.C4
  • AS3464Alabama Supercomputer Authority3
  • AS6453TATA COMMUNICATIONS (AMERICA)3
  • AS18943YELCOT TELEPHONE COMPANY3
  • AS4775Globe Telecoms2
  • AS10692DLS Internet Services2
  • AS32524Grupo SMS USA2
  • AS3320DTAG Deutsche Telekom1
  • AS3491PCCW Global (HK)1
  • AS5511Opentransit Orange S.A1
  • AS6325Illinois Century Network1
  • AS6614T Mobile USA1
  • AS13984SD Data Center1
  • AS20448Peace Communications1
  • AS29947Kirkland & Ellis LLP1
  • AS40380-1
  • AS399450ADVANCIAL FEDERAL CREDIT UNION1

Transfer History

Registry transfers of AS7018 between organisations.

1
ASPA
PublishedTransit-free, 42 downstreams
Authorized Upstream Providers
provider-as 0 (transit-free / no upstream)
Expires 2026-10-28
Listed as Upstream Provider by
42 ASNs
View full ASPA details →
External Links
ARIN WhoisRIPEstat

Learn more

API
Open
GEThttps://api.ipctl.io/v1/asn/7018

Returns ASN details, announced prefixes, and BGP routing data.

curl -s "https://api.ipctl.io/v1/asn/7018" | jq