Address span per AS (ARIN Region)
---------------------------------

  ASN   No of nets  /20 equiv  Description
 7018     1914       8325       AT&T WorldNet Services
 3356     1181       8201       Level 3 Communications, LLC 
   71      997       8192       Hewlett-Packard Company 
    3       34       4096       Massachusetts Institute of Te
   80       32       4096       General Electric Company 
  237      342       4096       Merit Network 
  714     4003       4096       Apple Computer, Inc. 
  721       32       4096       DoD Network Information Cente
 2686      155       4096       IBM 
 2721        3       4096       CULR, LLC 
 7922     2223        842       Continental Cablevision 
20057     1024        832       AT&T Mobility LLC
 6327      731        357       Shaw Fiberlink Limited 
20115    10663        323       Charter Communications 
 6128      379        236       Cablevision Systems Corp. 
22773     4764        172       Cox Communications, Inc.
11351     1505        166       Time Warner Cable - Road Runn
11427      960        155       ServiceCo LLC - Road Runner 
11426     3509        139       ServiceCo LLC - Road Runner 
  668      767        136       Defense Research and Engineer
 3549     3368        121       Global Crossing 
10782      285        121       Digital Equipment Corporation
 5769      928        112       Videotron Telecom Ltee 
 2914     4610        100       Verio, Inc. 
33363     2687        100       bright house NETWORKS 
12271     1920         98       ServiceCo LLC - Road Runner 
 7430     1035         97       Tandem Computers Incorporated
10796     2918         91       ServiceCo LLC - Road Runner 
 7992      288         90       Cogeco Cable 
 2386    18296         88       AT&T Data Communications Serv
 6301      192         80       Hewlett-Packard Company
26662      352         80       XEROX CORPORATION 
 2688      368         72       AT&T Global Network Services,
14618       62         64       TSI Cable 
16509      122         64       Amazon.com, Inc. 
22390      384         64       Xerox Corporation 
 4436     2640         58       Santa Cruz Community Internet
27364      990         58       Armstrong Cable Services 
20001      608         56       HoldCo LLC - Road Runner 
 3737      254         50       PenTeleData Inc. 
14566       96         48       Affiliated Computer Services 
16983      156         48       ACS Inc. 
19108     2849         48       Cox Internet Services 
11232     1028         47       Midcontinent Media Inc. 
11492    13263         47       Cable One 
11260     1088         45       Andara High Speed Internet c/
12083      288         44       Knology Holdings 
11290      800         39       COGECO Cable Canada inc. 
11060      567         37       Time Warner Cable  Northeast 
  209     1861         36       Qwest 
20231      885         34       HoldCo LLC - Road Runner 
  852      124         32       Telus Advanced Communications
16625     1789         31       Akamai Technologies
 7843     1629         29       Adelphia Corp. 
  812      679         27       Rogers WAVE 
 7017      628         27       ServiceCo LLC - Road Runner 
17224     1654         27       AT&T Enhanced Network Service
 4237      733         26       Computer Sciences Corporation
11955      849         26       ServiceCo LLC - Road Runner 
12262      634         26       RoadRunner-Cincinatti 
14638      384         25       iMark.com 
  206      925         22       Computer Sciences Corporation
29737     1305         21       WideOpenWest LLC 
11992     7744         20       Integrated Systems 
 2687      275         19       IBM 
 5645      252         18       Jump Point Communications, In
22717      341         17       Halliburton Company
 1239     1756         16       Sprint 
 2709       64         16       Apple Inc.
 7459      173         16       Thrifty Call, Inc. 
 8047       63         16       GCI Communications, Inc. 
10507      345         16       Sprint Personal Communication
15003     2162         16       TEGRIS Corporation 
23292      435         16       Millenium Digital Media 
25877      542         16       Open Mobile 
32107      628         16       Wave Broadband 
35916       32         16       MULTACOM CORPORATION 
36444       32         16       NEXCESS.NET L.L.C. 
54500      512         16       EGIHosting
12097      439         14       Massillon Cable Communication
17227      645         14       AT&T Enhanced Network Service
17228      188         14       AT&T Enhanced Network Service
17233      262         14       AT&T Enhanced Network Service
21804      192         13       Access Communications/Cable R
15146      224         12       Cable Bahamas Ltd. 
 4264      169         11       California Education and Rese
12015      107         11       Sunflower Cablevision and Dat
33631     2448         11       Palo Alto Research Center Inc
 2685      447         10       AT&T Global Network Services,
 8030      341         10       AT&T WorldNet
14366      444         10       Moutain Cablevision 
17229      191         10       AT&T Enhanced Network Service
23184      191         10       Persona Communications Inc. 
26769      856         10       Bandcon 
40285     4417         10       NORTHLAND CABLE TELEVISION IN
 3491      413          9       CAIS Internet 
 7015      553          9       AT&T Broadband 
22799      318          9       Delta Cable Communications Lt
35911      715          9       Telebec 
 4922     1199          8       Shentel Service Company 
 6079      102          8       RCN Corporation 
13368     3600          8       James Cable Partners 
13490      187          8       Access Toledo, LTD. 
14291      160          8       Antietam Cable Television, In
22932     3813          8       Cobridge Communications LLC
32328      254          8       Alascom 
36351       64          8       SoftLayer Technologies Inc. 
  577      702          7       Bell Advanced Communications 
 8092      217          7       Ygnition Networks, Inc. 
17231      517          7       AT&T Enhanced Network Service
22562      279          7       CSC 
36423      158          7       San Juan Cable, LLC 
11025      484          6       IMS-Net Corporation 
18812     1322          6       Northwest Multiple Listing Se
18834      247          6       Network IP 
32953       96          6       Mid-Hudson Cablevision, Inc. 
 4263      486          5       California Education and Rese
 6621      215          5       Hughes Network Systems 
13768      313          5       Peer 1 Network Inc. 
21877      187          5       Computer Sciences Corporation
46164      538          5       AT&T Mobility Labs
46687     1139          5       MetroCast Cablevision of New 
 4323      220          4       Time Warner Telecom
10971       96          4       Cass Cable TV, Inc.
11776      217          4       Conen 
11788     1072          4       Franklin Insurance Company 
11976      189          4       Fidelity Networks, Inc. 
12231      248          4       Conway Corporation 
13659      122          4       InterTECH Corporation 
16949      248          4       Edaptivity.com Inc. 
17225       62          4       AT&T Enhanced Network Service
19817       32          4       DSLExtreme 
25867       64          4       INTRIA-HP Corporation 
26801       32          4       NCI Information Systems 
27264      308          4       ebase, LLC 
30058       32          4       FDCservers.net
30404      491          4       Advanced Cable Communications
53488      853          4       Morris Broadband, LLC
  151      215          3       Hewlett-Packard Company 
  701      308          3       UUNET Technologies, Inc. 
 4265      576          3       California Education and Rese
 4267      548          3       California Education and Rese
 4466     1256          3       AT&T WorldNet Services 
13385      642          3       Comcast Telecommunications, I
13560       64          3       ServiceCo LLC - Road Runner 
17226      214          3       AT&T Enhanced Network Service
20357     1560          3       LiveVault Corporation 
22719       95          3       Atlantic Broadband Finance, L
32934      498          3       Facebook, Inc.
36268       94          3       PSS WORLD MEDICAL, Inc. 
40396      336          3       FLORIDA CABLE INC.
54448      815          3       Greenfield Communications, In
  174      278          2       Cogent Communications
  594       62          2       Genuity 
 1246      729          2       Windjammer Communications LLC
 1742       66          2       Harvard University 
 2727      216          2       Electric Plant Board of the C
 3801       92          2       Mikrotec Internet Services 
 4262       32          2       California Education and Rese
 5728     1021          2       AT&T WorldNet Services 
 6453       32          2       Teleglobe Inc. 
 7333       32          2       WinNET Communications, Inc. 
 7381       80          2       Sungard Recovery Services, In
10821      124          2       Pioneer Internet 
10933      216          2       ATX Telecommunications 
11979       32          2       Bluegrass Network LLC 
12019      805          2       Network Communications 
12175      402          2       Yelm Telephone Company 
13855       32          2       Cedar Falls Utilities 
13904       62          2       Cherryland Services Inc 
14008       64          2       Kincardine Cable Tv Ltd. 
14155       32          2       Rural Telephone Service Co, I
15169      290          2       Google Inc. 
16495       93          2       CableAmerica Corporation 
16895      154          2       iReadyWorld 
17232      212          2       AT&T Enhanced Network Service
18474       32          2       Aeneas Internet Services, LLC
18806       62          2       Ensynch, LLC 
19036       32          2       Loral Skynet Network Services
19048       93          2       Corio, Inc. 
19391      403          2       US Cable of Paramus-Hillsdale
19647       32          2       Hewlett-Packard Operation Div
19844      180          2       GoRack LLC
20473      903          2       Net Transactions LLC 
21615      607          2       Shaw Cablesystems 
22987      125          2       US Cable / Warp Drive Network
22995      128          2       Barrett Xplore Inc 
23089      338          2       Hotwire Communications 
25710      156          2       Full Channel TV, Inc. 
25853       62          2       Ellijay Telephone Company 
25983      127          2       Enmax Envision Inc. 
25994      305          2       NPG Cable, INC 
26464      217          2       Joyent, Inc.
29859      277          2       WideOpenWest LLC 
29895       93          2       WideOpenWest LLC 
29990      123          2       AppNexus, Inc 
30152      124          2       Beyond Hosting, LLC
30466      960          2       Cable Axion Digitel Inc. 
32220       64          2       Braintree Electric Light Dept
32233       94          2       Northern Cablevision Ltd. 
32448      157          2       MetroCast Cablevision 
32508      721          2       Granite State Long Distance, 
32748       32          2       NoZone, Inc. 
33541       70          2       ccROUTE Inc. 
33588      245          2       Bresnan Communications, LLC. 
33650      123          2       Comcast Cable Communications,
33659       47          2       Comcast Cable Communications,
35994      758          2       Akamai Technologies 
36315       32          2       Servpac Inc. 
40789       62          2       Campus Village Technology Ser
40918       32          2       Diode Cable Company 
53250       62          2       Atlantic Broadband Finance, L
  109      124          1       Cisco Systems, Inc. 
 1423      215          1       US DOD NIC Unregistered
 1632      464          1       [Querying whois.nic.mil]
 3361       89          1       Fortress Colocation Centers 
 3422       13          1       AT&T Internet Services
 3685       33          1       University of Buffalo 
 4185      300          1       AT&T Internet Services
 4266       92          1       California Education and Rese
 4445       31          1       Cable & Wireless, Inc. 
 4546      300          1       McGraw-Hill 
 4917      240          1       AMDOCS 
 5104       13          1       AT&T Internet Services
 5107       13          1       AT&T Internet Services
 6939       63          1       Hurricane Electric 
 7045       31          1       The Weather Channel 
 7065       32          1       Sonoma Interconnect 
 7294       13          1       AT&T Internet Services
 8161      123          1       Insight Direct, Inc. 
 8190       64          1       VIATEL 
10770       13          1       AT&T Internet Services
11167      182          1       AirCell, LLC. 
11168      366          1       DPConsultants 
11359      183          1       Rocky Mountain Communications
11949       62          1       COZAD TELEPHONE COMPANY 
11957      182          1       CacheFlow Inc. 
12025       92          1       White Pine Software 
12035       93          1       Dialaccess-ISP, Inc. 
12062       31          1       Decision One 
12064       62          1       COX FIBERNET 
12163      426          1       Broadband Network Services, I
12261      184          1       Dekalb Telephone Cooperative,
13332       30          1       systemIP Inc. 
13351       93          1       Barbourville Utility Commissi
13354       62          1       Intertek Solutions, Inc. 
13473       31          1       INTOP, Inc. 
13534       93          1       Ralls Technologies, LLC 
13550       94          1       CityNet Arizona LLC
13825       32          1       fastWEB.com, L.L.C. 
14112       60          1       SecureNet Information Service
14126       61          1       Worldwide Intercommunication 
14685      364          1       Countrywide Home Loans 
14728      124          1       Pomeroy Computer Resources 
14757      183          1       Data Systems West 
14793       32          1       Integrity Online 
14828      215          1       Hiawatha Broadband Communicat
14858       31          1       Hanson Information Systems, I
15100       31          1       Bevcomm 
15121      152          1       Calaveras Internet Company 
15239       31          1       Kozmo.com 
15331      182          1       JTEL Communications 
15344      186          1       Karib Cable 
16415      121          1       Precision Response Corporatio
16574       31          1       Gtek Computers LLC
16591       31          1       Google Fiber Inc.
16657      117          1       cyrsh technologies 
16711      330          1       ANC Rental Corporation 
16727      450          1       Private Cable Co. LLC
16787      363          1       HSA Corporation 
16923      444          1       CMA CABLEVISION
16948      182          1       StratusWave Communications 
16966      153          1       SBC Internet Services 
16967       61          1       SBC Internet Services 
17166       31          1       Travelers Property Casualty 
17253      123          1       CommuniGroup Inc. 
18624      278          1       City of Wilson 
18705       32          1       Research In Motion 
18712       32          1       Utilicorp Communications Serv
18826       30          1       Terrestar Networks Inc.
18988       32          1       Monarch CableSystems Ltd. 
19016      123          1       Westman Communications Group 
19271       62          1       Peak 10 
19291       74          1       Inflow 
19292       31          1       Inflow 
19384       31          1       GramTel 
19957       94          1       BellSouth 
20067      330          1       Forsythe Technology 
20195      123          1       Relera 
21548       32          1       Cable VDN inc. 
21555       62          1       Laurel Highlands Telephone 
21591       62          1       NetStandard Inc. 
21688      185          1       Commtech Wireless, Inc. 
21844       62          1       Inflow 
22162       93          1       Ayustar Corp. 
22224       31          1       Knorr Interactive 
22243      361          1       CentraComm Communications 
22258       31          1       Comcast Cable Communications 
22363      482          1       Powerhouse Management, Inc.
22410      215          1       Aurum Technology Inc. 
22442      272          1       PHONOSCOPE 
22528      423          1       DMSP 
22631      155          1       AIRbaud, Inc 
22647      123          1       Fairpoint Communications
22668       32          1       Intela LLC
22759       31          1       Seren Innovations 
22877       30          1       University of MarylandUnivers
22898       31          1       ATLINK SERVICES, LLC 
23118      545          1       Skyline Telephone 
23143      270          1       ATT Broadband 
23148      185          1       TerreNAP Datacenters 
23188      330          1       Wabash Independent Networks 
23277       31          1       Smart City Networks 
23391       93          1       O.A.S.I.S. 
25648       62          1       Parallax Sytems 
25921      332          1       Lafayette Consolidated Govern
26236      151          1       Nexon America Inc. 
26244      185          1       Bowling Green Municipal Utili
26306      124          1       The Karcher Group Inc. 
26504      212          1       MetroCast Communications 
26967      153          1       Shelton Johns 
27482       93          1       American Eagle Computer Produ
27611       31          1       Native Hosting, Inc. 
29828       31          1       ANIXTER INC. 
30094       32          1       Giganews, Inc. 
30110      305          1       Advanced Communications Techn
30188       30          1       Televergence Solutions Inc.
30361       32          1       Swiftwill, Inc.
30452       93          1       SPD dba First National Techno
30628      123          1       Road Runner Business Cincinna
31793      182          1       Network Solutions Group, Inc.
32382      332          1       ATOS ORIGIN 
32719      123          1       Basin Electric Power Coop 
32768       32          1       HEMINGFORD TELEPHONE 
32869      214          1       Silver Star Telecom 
32939      184          1       Atlantic Broadband Finance, L
33065       30          1       Convergent Network Services 
33234       32          1       Sjoberg's Cable Television 
33247      217          1       COASTAL TELCO SERVICES, INC.
33302       31          1       Optimum Network Services, LLC
33497      480          1       Semo Communications Inc 
33529       61          1       Peak Web Hosting 
33651       27          1       Comcast Cable Communications,
33667      125          1       Comcast Cable Communications,
33680       31          1       TELEPERFORMANCE USA 
33701      182          1       SEND TECHNOLOGIES, L.L.C. 
35843       32          1       Source Cable Ltd. 
35986       91          1       Allegiance Communications, LL
36377       91          1       Comcast Telecommunications, I
36408      286          1       Panther Express Corp. 
36492       31          1       Google, Inc. 
36685       62          1       DMS
36790      154          1       MetroCast Communications 
40098      245          1       Community Antenna Service, In
40220       33          1       Virginia Polytechnic Institut
40383       36          1       Compton Communications 
40749       31          1       CLARKSVILLE DEPARTMENT OF ELE
40788       32          1       Start Communications 
40805      151          1       LeasedMinds, LLC 
46281      437          1       Cotendo Inc. 
46404       45          1       Sunesys, LLC 
46449       32          1       Packerland Broadband 
46484       62          1       Secure Computing Corporation 
46618      480          1       Dery Telecom Inc. 
46923       31          1       Supporting Act Technologies, 
47030       61          1       SouthernLINC Wireless 
53271       32          1       Phenix Cable 
53503       62          1       Nearfield Solution Systems, I
53508       92          1       Cablelynx
53768      124          1       Laboratory Corporation of Ame
53850       32          1       GorillaServers, Inc.
53889       31          1       Micfo, LLC.
54084       31          1       REGION 14 EDUCATION SERVICE C
54512       31          1       Chickamauga Telephone Corpora
54690       93          1       California Lutheran Universit
54771      246          1       Plantation Cablevision Inc.
