ResearchIRR · LEVEL3

AS-19855 Masergy downstream customers.

An as-set registered in LEVEL3, maintained by MASERGY-MNT. It names 139 ASes and 0 sets directly; followed all the way down, it reaches 139 ASes through 0 nested sets.

Members

What AS-19855 lists

139 ASes and 0 sets, written in the object across every registry that holds it. Sets open their own page.

AS543 HP-POLYAS892 EBSI-ISP-FO-01AS2386 INS-ASAS4539 SEL-ASAS4944 AS4944AS6352 ETRADE-ASAS7345 LUCENTTECHAS7810 CMPCAS10441 JEG-1AS10647 NACMAS11031 ORBIS-INVESTMENTSAS11199 SHOWNETSASAS11261 EHI-PROD-SJ-ASAS11336 BLACKROCK-FINANCIAL-MANAGEMENTAS11364 VAREX-USAAS11496 JPMORGAN-CPS-TAMPA-FLAS12184 FORRESTER-RESEARCHAS12197 DRUGSTORE-COMAS12222 AKAMAIAS13860 LFGAS14039 BTCONF-VIDEOAS14062 AKQAAS14110 GENESYS-ASNAS14233 ANCESTRY-INCAS14385AS14514 PHJWAS14524 SERCO-NAAS14527 CABELASAS14762 AMGENAS14995 MASERGY-ASAS15126 SMAIAS15284 DSCAS16541 ERICKSON-ASAS16658 PVAS-01AS17272 ROTH-NETAS17398AS18514 MDCH-CRP-ASNAS18544 NKTR-AS01AS18548 MYCELIA-ASN-01AS18649 ST-DALAS18676 AVAYAAS18742 ON24-SACAS18810 EHI-PRODUCTIONAS19270 JPMORGAN-CPS-DALLAS-TXAS19855 MASERGYAS20115 CHARTER-20115AS20140 EHI-CORP-MV-ASAS20236 BEAL-SERVICE-CORPORATIONAS20270 CLEARSKY-SYSTEMS-INCAS20427 AAAEAS20464 HP-POLYAS21399 AKAMAI3AS21509 APOLLONYCAS21639 BCBSLA-ASNAS21665 AMPLIGHT-VENTURESAS21721 BLT-US-01AS21780 GRIFFITH-LABORATORIESAS22100 CRITICAL-PATHAS22511 PRESIDIONSAS22514 HITACHI-HIGHTECH
Show 79 more
AS22754 GAPARTNERS-CTAS22770 WHEELS-COMAS22775 MOORECAPAS23013 FORTANIXAS23062 JWPEPPERAS23406 CHOATEHALLSTEWARTAS23463 LONEPINECAPITALAS24887AS25863 HUNTERENGAS25902AS26121 JEPPESENAS26245 ROBERT-HAS26428 TALBOTSAS26575 SERENA01AS26700 FORTRESSASAS26805 FHLBSFAS26812 ROTARY-INTERNATIONALAS27000 COTYINCAS27226 HARBOURVESTAS27285 ADAM-ASNAS27493 CTRX-AS2AS27547 ARCHMI-AS1AS29708 FINANCIAL-SECURITY-ASSURANCEAS29827 BROCADE-NMSAS30018 RED-GAP-COMMUNICATIONS-INCAS30020 BENFIELD-2003ASNAS30144 BQIAS30356 BCBSMAS30446 SERENA02AS30516AS31925 QUEBEC-RANDD-OFFICEAS31952 CAL-NAP-ASNAS32072AS32110 ASURION-INSURANCE-CORPORATIONAS32324 CITYCERRITOSAS32352 MGRCAS32355 HBP-ASAS33014 MARLINLEASINGAS33054 MCCRACKENFSAS33576 DIG001AS33646 SFH-ASAS35845 MEDIVATION-BGPAS35965 EDNPC-ORG-1AS40276AS40686 HBK-ROSEWOODAS40920AS41919AS43255 FSA-UK-ASAS46106 JACKSON-HEALTHCAREAS46605 MGRCAS46763 RIEMER-BRAUNSTEINAS46840 GSC-WATERAS48989 CLUSTER-IQAS53291 WSFS-ASNAS53315 NEXUSISAS53542 MESNETAS53655 ACCTLAS54107 ZYNGA-CORPAS55104 BIOC-ASNAS62702 AS62702AS64259 GA-831-64259AS65014AS65355AS136260AS200867 RGNETAS203177 PINNACAAS393567 AS-EQX-ATLC-01AS393985 AS-FFNAS394103 AS-PINNAS394259 CPPIB-ASAS394301 DEXCOM-INCAS394409 POWERENGAS394499 DIMENSIONALAS394609 INCOMM-NET1AS394944 CCCISAS395278 SERTASIMMONSBEDDINGAS396182 VOIGTINDELECT-AAS398965 ENERBANKUSAAS399322 TRANSRE-064US
Expanded

Every AS it reaches

What a filter built from AS-19855 would let in: 139 ASes.

Show the 139 ASes
AS543AS892AS2386AS4539AS4944AS6352AS7345AS7810AS10441AS10647AS11031AS11199AS11261AS11336AS11364AS11496AS12184AS12197AS12222AS13860AS14039AS14062AS14110AS14233AS14385AS14514AS14524AS14527AS14762AS14995AS15126AS15284AS16541AS16658AS17272AS17398AS18514AS18544AS18548AS18649AS18676AS18742AS18810AS19270AS19855AS20115AS20140AS20236AS20270AS20427AS20464AS21399AS21509AS21639AS21665AS21721AS21780AS22100AS22511AS22514AS22754AS22770AS22775AS23013AS23062AS23406AS23463AS24887AS25863AS25902AS26121AS26245AS26428AS26575AS26700AS26805AS26812AS27000AS27226AS27285AS27493AS27547AS29708AS29827AS30018AS30020AS30144AS30356AS30446AS30516AS31925AS31952AS32072AS32110AS32324AS32352AS32355AS33014AS33054AS33576AS33646AS35845AS35965AS40276AS40686AS40920AS41919AS43255AS46106AS46605AS46763AS46840AS48989AS53291AS53315AS53542AS53655AS54107AS55104AS62702AS64259AS65014AS65355AS136260AS200867AS203177AS393567AS393985AS394103AS394259AS394301AS394409AS394499AS394609AS394944AS395278AS396182AS398965AS399322
Prefixes

What AS-19855 covers

Every route object in the IRR whose origin is one of the 139 ASes it reaches: the prefixes a filter built from AS-19855 (with bgpq4, say) would allow. 3,730 IPv4 and 440 IPv6. Every one is in the IRR API.

3,730 IPv4 prefixesthe first 1,000 listed
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440 IPv6 prefixes
2001:470:1a7::/482001:4878:101::/482001:4878:102::/482001:4878:103::/482001:4878:10::/482001:4878:136::/482001:4878:151::/482001:4878:153::/482001:4878:158::/482001:4878:164::/482001:4878:173::/482001:4878:1::/482001:4878:2000::/482001:4878:2007::/482001:4878:2010::/482001:4878:2027::/482001:4878:202::/482001:4878:2031::/482001:4878:2037::/482001:4878:2038::/482001:4878:2048::/482001:4878:204::/482001:4878:2062::/482001:4878:2063::/482001:4878:2101::/482001:4878:2102::/482001:4878:2103::/482001:4878:2136::/482001:4878:2151::/482001:4878:2153::/482001:4878:2158::/482001:4878:215::/482001:4878:2164::/482001:4878:216::/482001:4878:2173::/482001:4878:217::/482001:4878:218::/482001:4878:219::/482001:4878:2202::/482001:4878:2204::/482001:4878:220::/482001:4878:2215::/482001:4878:2216::/482001:4878:2217::/482001:4878:2218::/482001:4878:2219::/482001:4878:2220::/482001:4878:2225::/482001:4878:2228::/482001:4878:2230::/482001:4878:2234::/482001:4878:2242::/482001:4878:2246::/482001:4878:2259::/482001:4878:225::/482001:4878:2261::/482001:4878:228::/482001:4878:230::/482001:4878:2321::/482001:4878:2322::/482001:4878:2323::/482001:4878:2324::/482001:4878:2347::/482001:4878:234::/482001:4878:2356::/482001:4878:242::/482001:4878:246::/482001:4878:259::/482001:4878:261::/482001:4878:27::/482001:4878:31::/482001:4878:321::/482001:4878:322::/482001:4878:323::/482001:4878:324::/482001:4878:347::/482001:4878:356::/482001:4878:37::/482001:4878:38::/482001:4878:39::/482001:4878:3::/482001:4878:4000::/482001:4878:4007::/482001:4878:4010::/482001:4878:4027::/482001:4878:4031::/482001:4878:4037::/482001:4878:4038::/482001:4878:4062::/482001:4878:4063::/482001:4878:4101::/482001:4878:4102::/482001:4878:4103::/482001:4878:4136::/482001:4878:4158::/482001:4878:4164::/482001:4878:4173::/482001:4878:4204::/482001:4878:4215::/482001:4878:4216::/482001:4878:4217::/482001:4878:4218::/482001:4878:4219::/482001:4878:4220::/482001:4878:4225::/482001:4878:4228::/482001:4878:4230::/482001:4878:4234::/482001:4878:4242::/482001:4878:4246::/482001:4878:4259::/482001:4878:4321::/482001:4878:4322::/482001:4878:4323::/482001:4878:4324::/482001:4878:4347::/482001:4878:48::/482001:4878:62::/482001:4878:63::/482001:4878:7::/482001:4878:8007::/482001:4878:8010::/482001:4878:8027::/482001:4878:8031::/482001:4878:8037::/482001:4878:8038::/482001:4878:8048::/482001:4878:8062::/482001:4878:8063::/482001:4878:8101::/482001:4878:8102::/482001:4878:8103::/482001:4878:8136::/482001:4878:8151::/482001:4878:8153::/482001:4878:8158::/482001:4878:8164::/482001:4878:8173::/482001:4878:8202::/482001:4878:8204::/482001:4878:8215::/482001:4878:8216::/482001:4878:8217::/482001:4878:8218::/482001:4878:8219::/482001:4878:8220::/482001:4878:8225::/482001:4878:8228::/482001:4878:8230::/482001:4878:8234::/482001:4878:8242::/482001:4878:8246::/482001:4878:8259::/482001:4878:8261::/482001:4878:8321::/482001:4878:8322::/482001:4878:8323::/482001:4878:8324::/482001:4878:8347::/482001:4878:8356::/482001:4878::/482001:4878:a000::/482001:4878:a007::/482001:4878:a010::/482001:4878:a027::/482001:4878:a031::/482001:4878:a038::/482001:4878:a048::/482001:4878:a062::/482001:4878:a102::/482001:4878:a136::/482001:4878:a151::/482001:4878:a153::/482001:4878:a202::/482001:4878:a204::/482001:4878:a215::/482001:4878:a216::/482001:4878:a220::/482001:4878:a225::/482001:4878:a228::/482001:4878:a234::/482001:4878:a242::/482001:4878:a246::/482001:4878:a259::/482001:4878:a261::/482001:4878:a321::/482001:4878:a322::/482001:4878:a323::/482001:4878:a324::/482001:4878:a347::/482001:4878:a356::/482001:4878:b007::/482001:4878:b010::/482001:4878:b027::/482001:4878:b031::/482001:4878:b038::/482001:4878:b048::/482001:4878:b102::/482001:4878:b136::/482001:4878:b151::/482001:4878:b153::/482001:4878:b202::/482001:4878:b216::/482001:4878:b220::/482001:4878:b225::/482001:4878:b228::/482001:4878:b234::/482001:4878:b259::/482001:4878:b347::/482001:4878:c000::/482001:4878:c007::/482001:4878:c010::/482001:4878:c027::/482001:4878:c031::/482001:4878:c037::/482001:4878:c038::/482001:4878:c062::/482001:4878:c063::/482001:4878:c101::/482001:4878:c102::/482001:4878:c103::/482001:4878:c136::/482001:4878:c158::/482001:4878:c164::/482001:4878:c204::/482001:4878:c215::/482001:4878:c216::/482001:4878:c217::/482001:4878:c218::/482001:4878:c219::/482001:4878:c220::/482001:4878:c225::/482001:4878:c228::/482001:4878:c230::/482001:4878:c234::/482001:4878:c242::/482001:4878:c246::/482001:4878:c257::/482001:4878:c259::/482001:4878:c321::/482001:4878:c322::/482001:4878:c323::/482001:4878:c324::/482001:4878:c347::/482400:7160:2000::/442400:7160:2020::/442402:2100::/322600:1409:a000::/482600:140f:e800::/482600:6c00::/242600:6c07::/322600:6c08:5ae::/482600:6c08:625::/482600:6c0b::/322600:6c15::/322600:6c1b::/322600:6c1e::/322600:6c1f::/322600:6c25::/322600:6c2b::/322600:6c2f::/322600:6c41::/322600:6c43::/322600:6c45::/322600:6c47::/332600:6c49::/322600:6c4f::/322600:6c57::/322600:6c59::/322600:6c5b::/322600:6c61::/322600:6c70:e::/482600:6c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Registries

Each registry’s copy

LEVEL3139 membersMasergy downstream customers.
Maintained byMASERGY-MNT
Last modified2025-12-02T14:58:41Z
MembersAS6352 AS11496 AS19855 AS14039 AS14527 AS18548 AS18676 AS21639 AS27285 AS12197 AS10647 AS30018 AS22775 AS30144 AS19270 AS26121 AS17398 AS11336 AS26245 AS7345 AS27493 AS14524 AS10441 AS23062 AS40276 AS30516 AS20140 AS18810 AS11261 AS29708 AS43255 AS30020 AS21509 AS32352 AS32355 AS18514 AS40686 AS32324 AS27547 AS40920 AS22511 AS46605 AS31925 AS27226 AS35965 AS20464 AS48989 AS65355 AS46763 AS21665 AS18649 AS21399 AS53291 AS23013 AS30356 AS14514 AS26812 AS18742 AS14385 AS20270 AS25902 AS33054 AS12222 AS15284 AS18544 AS26805 AS16658 AS54107 AS11364 AS33014 AS22100 AS26700 AS20236 AS35845 AS32072 AS14062 AS7810 AS53315 AS33576 AS11031 AS22770 AS41919 AS46840 AS12184 AS14110 AS393567 AS27000 AS33646 AS62702 AS14762 AS4944 AS31952 AS30446 AS55104 AS2386 AS394409 AS394499 AS26575 AS394259 AS394103 AS53542 AS53655 AS21780 AS15126 AS203177 AS22754 AS20115 AS25863 AS64259 AS29827 AS4539 AS394609 AS32110 AS23463 AS65014 AS543 AS24887 AS14233 AS14995 AS21721 AS393985 AS396182 AS136260 AS46106 AS200867 AS22514 AS394301 AS399322 AS17272 AS394944 AS395278 AS23406 AS398965 AS892 AS26428 AS20427 AS13860 AS16541 AS11199
mbrs-by-refN
Used by

Sets that include AS-19855

AS-COMCAST-IBONE
Tools

Check AS-19855 live

IRR API, with prefixes