Weekly Routing Table Report

From: Routing Analysis Role Account (no email)
Date: Fri May 04 2007 - 14:03:15 EDT

  • Next message: Steve Gibbard: "E-mail addresses and signatures [was: RE: 96.0.0.0/6 reachability testing]"

    This is an automated weekly mailing describing the state of the Internet
    Routing Table as seen from APNIC's router in Japan.
    Daily listings are sent to

    For historical data, please see http://thyme.apnic.net.

    If you have any comments please contact Philip Smith <>.

    Routing Table Report 04:00 +10GMT Sat 05 May, 2007

    Report Website: http://thyme.apnic.net
    This report: http://thyme.apnic.net/ap-data/2007/05/05/0400

    Analysis Summary
    ----------------

    BGP routing table entries examined: 219628
        Prefixes after maximum aggregation: 116935
        Deaggregation factor: 1.88
        Unique aggregates announced to Internet: 106618
    Total ASes present in the Internet Routing Table: 25093
        Prefixes per ASN: 8.75
    Origin-only ASes present in the Internet Routing Table: 21855
    Origin ASes announcing only one prefix: 10575
    Transit ASes present in the Internet Routing Table: 3238
    Transit-only ASes present in the Internet Routing Table: 77
    Average AS path length visible in the Internet Routing Table: 3.6
        Max AS path length visible: 21
        Max AS path prepend of ASN (20858) 18
    Prefixes from unregistered ASNs in the Routing Table: 6
        Unregistered ASNs in the Routing Table: 7
    Prefixes from 32-bit ASNs in the Routing Table: 5
    Special use prefixes present in the Routing Table: 0
    Prefixes being announced from unallocated address space: 12
    Number of addresses announced to Internet: 1715790016
        Equivalent to 102 /8s, 68 /16s and 224 /24s
        Percentage of available address space announced: 46.3
        Percentage of allocated address space announced: 62.8
        Percentage of available address space allocated: 73.7
    Total number of prefixes smaller than registry allocations: 114921

    APNIC Region Analysis Summary
    -----------------------------

    Prefixes being announced by APNIC Region ASes: 50596
        Total APNIC prefixes after maximum aggregation: 20195
        APNIC Deaggregation factor: 2.51
    Prefixes being announced from the APNIC address blocks: 47584
        Unique aggregates announced from the APNIC address blocks: 21230
    APNIC Region origin ASes present in the Internet Routing Table: 2933
        APNIC Prefixes per ASN: 16.22
    APNIC Region origin ASes announcing only one prefix: 788
    APNIC Region transit ASes present in the Internet Routing Table: 440
    Average APNIC Region AS path length visible: 3.5
        Max APNIC Region AS path length visible: 16
    Number of APNIC addresses announced to Internet: 292731328
        Equivalent to 17 /8s, 114 /16s and 185 /24s
        Percentage of available APNIC address space announced: 72.5

    APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
    (pre-ERX allocations) 23552-24575, 37888-38911
    APNIC Address Blocks 58/7, 60/7, 116/6, 120/6, 124/7, 126/8, 202/7
                           210/7, 218/7, 220/7 and 222/8

    ARIN Region Analysis Summary
    ----------------------------

    Prefixes being announced by ARIN Region ASes: 106199
        Total ARIN prefixes after maximum aggregation: 61978
        ARIN Deaggregation factor: 1.71
    Prefixes being announced from the ARIN address blocks: 78168
        Unique aggregates announced from the ARIN address blocks: 30453
    ARIN Region origin ASes present in the Internet Routing Table: 11538
        ARIN Prefixes per ASN: 6.77
    ARIN Region origin ASes announcing only one prefix: 4425
    ARIN Region transit ASes present in the Internet Routing Table: 1056
    Average ARIN Region AS path length visible: 3.4
        Max ARIN Region AS path length visible: 21
    Number of ARIN addresses announced to Internet: 331984768
        Equivalent to 19 /8s, 201 /16s and 175 /24s
        Percentage of available ARIN address space announced: 73.3

    ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
    (pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153
                           3354-4607, 4865-5119, 5632-6655, 6912-7466
                           7723-8191, 10240-12287, 13312-15359, 16384-17407
                           18432-20479, 21504-23551, 25600-26591,
                           26624-27647, 29696-30719, 31744-33791
                           35840-36863, 39936-40959
    ARIN Address Blocks 24/8, 63/8, 64/5, 72/6, 76/8, 96/6, 199/8, 204/6,
                           208/7 and 216/8

    RIPE Region Analysis Summary
    ----------------------------

    Prefixes being announced by RIPE Region ASes: 45303
        Total RIPE prefixes after maximum aggregation: 29640
        RIPE Deaggregation factor: 1.53
    Prefixes being announced from the RIPE address blocks: 41854
        Unique aggregates announced from the RIPE address blocks: 27995
    RIPE Region origin ASes present in the Internet Routing Table: 9570
        RIPE Prefixes per ASN: 4.37
    RIPE Region origin ASes announcing only one prefix: 5051
    RIPE Region transit ASes present in the Internet Routing Table: 1534
    Average RIPE Region AS path length visible: 4.0
        Max RIPE Region AS path length visible: 20
    Number of RIPE addresses announced to Internet: 304882816
        Equivalent to 18 /8s, 44 /16s and 36 /24s
        Percentage of available RIPE address space announced: 75.7

    RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
    (pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
                           6656-6911, 8192-9215, 12288-13311, 15360-16383
                           20480-21503, 24576-25599, 28672-29695
                           30720-31743, 33792-35839, 38912-39935
                           40960-44031
    RIPE Address Blocks 62/8, 77/8, 78/7, 80/5, 88/6, 92/7, 193/8, 194/7,
                           212/7 and 217/8

    LACNIC Region Analysis Summary
    ------------------------------

    Prefixes being announced by LACNIC Region ASes: 14941
        Total LACNIC prefixes after maximum aggregation: 4105
        LACNIC Deaggregation factor: 3.64
    Prefixes being announced from the LACNIC address blocks: 13030
        Unique aggregates announced from the LACNIC address blocks: 7169
    LACNIC Region origin ASes present in the Internet Routing Table: 785
        LACNIC Prefixes per ASN: 16.60
    LACNIC Region origin ASes announcing only one prefix: 254
    LACNIC Region transit ASes present in the Internet Routing Table: 140
    Average LACNIC Region AS path length visible: 4.2
        Max LACNIC Region AS path length visible: 17
    Number of LACNIC addresses announced to Internet: 38440704
        Equivalent to 2 /8s, 74 /16s and 143 /24s
        Percentage of available LACNIC address space announced: 57.3

    LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
    LACNIC Address Blocks 189/8, 190/8, 200/7

    AfriNIC Region Analysis Summary
    -------------------------------

    Prefixes being announced by AfriNIC Region ASes: 2579
        Total AfriNIC prefixes after maximum aggregation: 1007
        AfriNIC Deaggregation factor: 2.56
    Prefixes being announced from the AfriNIC address blocks: 1959
        Unique aggregates announced from the AfriNIC address blocks: 1193
    AfriNIC Region origin ASes present in the Internet Routing Table: 189
        AfriNIC Prefixes per ASN: 10.37
    AfriNIC Region origin ASes announcing only one prefix: 57
    AfriNIC Region transit ASes present in the Internet Routing Table: 37
    Average AfriNIC Region AS path length visible: 3.7
        Max AfriNIC Region AS path length visible: 15
    Number of AfriNIC addresses announced to Internet: 6070016
        Equivalent to 0 /8s, 92 /16s and 159 /24s
        Percentage of available AfriNIC address space announced: 18.1

    AfriNIC AS Blocks 36864-37887 & ERX transfers
    AfriNIC Address Blocks 41/8, 196/8

    APNIC Region per AS prefix count summary
    ----------------------------------------

      ASN No of nets /20 equiv MaxAgg Description
     4134 1282 9603 274 CHINANET-BACKBONE
     4755 1205 383 72 Videsh Sanchar Nigam Ltd. Aut
     9583 1108 79 381 Sify Limited
     9498 974 469 73 BHARTI BT INTERNET LTD.
     4766 784 4943 312 Korea Telecom (KIX)
    23577 778 35 706 Korea Telecom (ATM-MPLS)
    17488 672 44 34 Hathway IP Over Cable Interne
     7545 627 142 80 TPG Internet Pty Ltd
     1221 543 1954 421 Telstra Pty Ltd
    18101 534 116 27 Reliance Infocom Ltd Internet
     4668 507 68 10 LG-EDS Systems Inc.
    17676 504 10935 65 Softbank BB Corp.
     4812 465 799 75 China Telecom (Shanghai)
     9443 453 115 74 Primus Telecommunications
     7474 411 217 268 SingTel Optus Pty Ltd
     4802 359 86 148 Wantree Development
    17557 359 35 170 Pakistan Telecom
     9829 354 273 10 BSNL National Internet Backbo
     4837 346 4725 160 chinanet IDC center beijing n
    17974 344 129 12 PT TELEKOMUNIKASI INDONESIA

    ARIN Region per AS prefix count summary
    ---------------------------------------

      ASN No of nets /20 equiv MaxAgg Description
     7018 1495 6134 986 AT&T WorldNet Services
     4323 1263 1023 361 Time Warner Telecom
     2386 1136 580 754 AT&T Data Communications Serv
     6478 1091 337 133 AT&T Worldnet Services
    11492 1049 103 20 Cable One
     6197 1034 688 503 BellSouth Network Solutions,
    18566 1001 288 9 Covad Communications
      174 968 6793 877 Cogent Communications
      701 958 6660 731 UUNET Technologies, Inc.
    20115 824 738 431 Charter Communications
     1239 819 2717 580 Sprint
     7011 790 226 471 Citizens Utilities
    19262 769 2596 208 Verizon Global Networks
      209 731 3862 584 Qwest
    22773 710 1872 42 Cox Communications, Inc.
      721 601 21739 270 DLA Systems Automation Center
     5668 598 160 17 CenturyTel Internet Holdings,
      852 589 1096 371 Telus Advanced Communications
     7029 582 456 81 Alltel Information Services,
      855 568 253 71 Canadian Research Network

    RIPE Region per AS prefix count summary
    ---------------------------------------

      ASN No of nets /20 equiv MaxAgg Description
      702 522 1941 416 UUNET - Commercial IP service
    24863 344 47 30 LINKdotNET AS number
     3301 310 1455 290 TeliaNet Sweden
     3320 302 4993 250 Deutsche Telekom AG
     6746 275 128 252 Dynamic Network Technologies,
     8220 259 461 250 COLT Telecommunications
      680 257 2044 250 DFN-IP service G-WiN
     3215 240 2256 92 France Telecom Transpac
     8708 236 287 229 Romania Data Systems S.A.
     3352 224 1799 33 Ibernet, Internet Access Netw
     3269 214 2583 73 TELECOM ITALIA
     3246 208 340 198 Song Networks
     8551 206 196 30 Bezeq International
    30890 205 17 95 SC Kappa Invexim SRL
    20858 196 34 4 EgyNet
     1257 190 1180 168 SWIPnet Swedish IP Network
     9116 189 134 24 Goldenlines main autonomous s
     3300 185 171 90 AUCS Communications Services
    12479 185 578 6 Uni2 Autonomous System
      786 177 1795 177 The JANET IP Service

    LACNIC Region per AS prefix count summary
    -----------------------------------------

      ASN No of nets /20 equiv MaxAgg Description
     8151 1179 1869 210 UniNet S.A. de C.V.
    11830 483 299 19 Instituto Costarricense de El
    11172 364 116 63 Servicios Alestra S.A de C.V
    16814 362 22 8 NSS, S.A.
    22047 310 238 12 VTR PUNTO NET S.A.
     7303 273 143 28 Telecom Argentina Stet-France
     6471 259 74 31 ENTEL CHILE S.A.
    14117 242 17 14 Telefonica del Sur S.A.
    11556 235 128 3 Cable-Wireless Panama
     6147 221 166 25 Telefonica Del Peru
     6503 215 172 86 AVANTEL, S.A.
    20299 192 23 14 NEWCOM AMERICAS
    10620 185 53 23 TVCABLE BOGOTA
    10481 181 72 8 Prima S.A.
    23216 157 19 42 RAMtelecom Telecomunicaciones
    14522 155 25 7 SatNet S.A.
    21826 155 27 59 INTERCABLE
     7910 154 11 29 ANDINET ON LINE
    19429 151 93 41 E.T.B.
    19169 143 9 26 Telconet

    AfriNIC Region per AS prefix count summary
    ------------------------------------------

      ASN No of nets /20 equiv MaxAgg Description
     3741 291 868 232 The Internet Solution
     8452 228 188 7 TEDATA
     6713 143 135 11 Itissalat Al-MAGHRIB
     2018 137 309 112 Tertiary Education Network
    15475 129 84 4 Nile Online
     5536 123 8 15 Internet Egypt Network
    33783 119 8 9 EEPAD TISP TELECOM & INTERNET
    24835 85 48 6 RAYA Telecom - Egypt
     2905 81 174 73 The Internetworking Company o
     2561 55 6 2 Egyptian Universities Network
    15706 51 12 4 Sudatel Internet Exchange Aut
    23889 49 16 13 MAURITIUS TELECOM
     5713 44 294 34 Telkom SA Ltd
    33774 43 13 24 AS Number for Telecom Algeria
    16637 33 21 25 Johnnic e-Ventures
    33776 31 2 6 Starcomms Nigeria Limited
     8524 30 2 6 AUCEGYPT Autonomous System
    21280 29 4 4 Swift Global Kenya Ltd.Is an
    33766 29 2 1 Nyala Communications Pty Ltd
    12455 25 6 3 Jambonet Autonomous system

    Global Per AS Maximum Aggr summary
    ----------------------------------

      ASN No of nets Net Savings Description
     4755 1205 1133 Videsh Sanchar Nigam Ltd. Aut
    11492 1049 1029 Cable One
     4134 1282 1008 CHINANET-BACKBONE
    18566 1001 992 Covad Communications
     8151 1179 969 UniNet S.A. de C.V.
     6478 1091 958 AT&T Worldnet Services
     4323 1263 902 Time Warner Telecom
     9498 974 901 BHARTI BT INTERNET LTD.
     9583 1108 727 Sify Limited
    22773 710 668 Cox Communications, Inc.
    17488 672 638 Hathway IP Over Cable Interne
     5668 598 581 CenturyTel Internet Holdings,
    19262 769 561 Verizon Global Networks
     7545 627 547 TPG Internet Pty Ltd
     6197 1034 531 BellSouth Network Solutions,
    19916 568 517 OLM LLC
    18101 534 507 Reliance Infocom Ltd Internet
     7029 582 501 Alltel Information Services,
      855 568 497 Canadian Research Network
     4668 507 497 LG-EDS Systems Inc.

    List of Unregistered Origin ASNs (Global)
    -----------------------------------------

    Bad AS Designation Network Transit AS Description
    65332 PRIVATE 63.166.106.192/27 1803 SPRINT
    65242 PRIVATE 64.222.142.0/24 13674 Bell Atlantic Global
    64858 PRIVATE 84.36.180.0/24 20858 EgyNet
    24410 UNALLOCATED 203.119.28.0/24 4134 CHINANET-BACKBONE
    65534 PRIVATE 203.222.150.0/24 4817 Techex Primary Netbl
    22895 UNALLOCATED 216.174.38.0/24 19094 Adelphia Business So

    Advertised Unallocated Addresses
    --------------------------------

    Network Origin AS Description
    2.0.0.0/24 41856 Flagmanskaya Sluzhba Svyazi
    7.1.1.0/24 1239 Sprint
    132.0.0.0/10 721 DLA Systems Automation Center
    137.0.0.0/13 721 DLA Systems Automation Center
    158.0.0.0/13 721 DLA Systems Automation Center
    172.33.1.0/24 7018 AT&T WorldNet Services
    192.0.10.0/24 9498 BHARTI BT INTERNET LTD.
    192.44.0.0/24 5501 Fraunhofer Gesellschaft
    192.44.0.0/19 702 UUNET - Commercial IP service
    192.70.164.0/24 25689 National Research Council of
    192.153.136.0/21 721 DLA Systems Automation Center
    192.172.0.0/19 721 DLA Systems Automation Center

    Number of prefixes announced per prefix length (Global)
    -------------------------------------------------------

     /1:0 /2:0 /3:0 /4:0 /5:0 /6:0
     /7:0 /8:19 /9:9 /10:13 /11:34 /12:123
    /13:238 /14:450 /15:862 /16:9372 /17:3837 /18:6368
    /19:13452 /20:15279 /21:13824 /22:17896 /23:19200 /24:116510
    /25:759 /26:818 /27:491 /28:59 /29:6 /30:1
    /31:0 /32:8

    Advertised prefixes smaller than registry allocations
    -----------------------------------------------------

      ASN No of nets Total ann. Description
     6478 1082 1091 AT&T Worldnet Services
    11492 1035 1049 Cable One
    18566 983 1001 Covad Communications
     9583 946 1108 Sify Limited
     2386 832 1136 AT&T Data Communications Serv
     7018 807 1495 AT&T WorldNet Services
     6197 795 1034 BellSouth Network Solutions,
    23577 764 778 Korea Telecom (ATM-MPLS)
     7011 693 790 Citizens Utilities
     9498 638 974 BHARTI BT INTERNET LTD.
     4755 600 1205 Videsh Sanchar Nigam Ltd. Aut
     4766 590 784 Korea Telecom (KIX)
    19916 563 568 OLM LLC
     8151 557 1179 UniNet S.A. de C.V.
     4323 522 1263 Time Warner Telecom
     4668 496 507 LG-EDS Systems Inc.
    15270 495 528 PaeTec.net -a division of Pae
    17488 493 672 Hathway IP Over Cable Interne
      855 466 568 Canadian Research Network
     5668 463 598 CenturyTel Internet Holdings,

    Number of /24s announced per /8 block (Global)
    ----------------------------------------------

       2:1 4:9 7:1 8:73 9:1 12:1805
      15:19 16:3 17:3 18:8 20:37 24:927
      25:1 32:53 38:306 40:60 41:127 44:2
      47:4 52:4 55:2 56:3 57:26 58:391
      59:371 60:272 61:930 62:970 63:1972 64:3073
      65:2363 66:3261 67:806 68:636 69:1829 70:499
      71:104 72:1314 73:1 74:414 75:258 76:45
      77:145 80:858 81:805 82:600 83:373 84:435
      85:750 86:360 87:464 88:264 89:851 90:7
      91:272 97:6 116:55 121:175 122:520 123:97
     124:798 125:926 128:278 129:219 130:123 131:347
     132:52 133:11 134:193 135:39 136:183 137:78
     138:197 139:65 140:477 141:164 142:371 143:234
     144:289 145:43 146:323 147:145 148:400 149:142
     150:116 151:158 152:92 153:120 154:4 155:252
     156:155 157:185 158:160 159:156 160:105 161:89
     162:234 163:176 164:452 165:405 166:234 167:279
     168:491 169:118 170:400 171:16 172:1 189:396
     190:600 192:5760 193:3806 194:3107 195:2213 196:951
     198:3753 199:3300 200:4763 201:979 202:7240 203:7464
     204:3953 205:2088 206:2358 207:2880 208:2665 209:3606
     210:2478 211:937 212:1312 213:1460 214:408 215:41
     216:3999 217:1139 218:356 219:356 220:949 221:408
     222:269

    End of report


  • Next message: Steve Gibbard: "E-mail addresses and signatures [was: RE: 96.0.0.0/6 reachability testing]"





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