Weekly Routing Table Report

From: Routing Analysis Role Account (no email)
Date: Fri Nov 28 2008 - 13:12:28 EST

  • Next message: Måns Nilsson: "Re: an over-the-top data center"

    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 29 Nov, 2008

    Report Website: http://thyme.apnic.net
    Detailed Analysis: http://thyme.apnic.net/current/

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

    BGP routing table entries examined: 275422
        Prefixes after maximum aggregation: 131996
        Deaggregation factor: 2.09
        Unique aggregates announced to Internet: 133443
    Total ASes present in the Internet Routing Table: 29927
        Prefixes per ASN: 9.20
    Origin-only ASes present in the Internet Routing Table: 26053
    Origin ASes announcing only one prefix: 12687
    Transit ASes present in the Internet Routing Table: 3874
    Transit-only ASes present in the Internet Routing Table: 91
    Average AS path length visible in the Internet Routing Table: 3.6
        Max AS path length visible: 18
        Max AS path prepend of ASN ( 3816) 15
    Prefixes from unregistered ASNs in the Routing Table: 542
        Unregistered ASNs in the Routing Table: 198
    Number of 32-bit ASNs allocated by the RIRs: 65
    Prefixes from 32-bit ASNs in the Routing Table: 9
    Special use prefixes present in the Routing Table: 0
    Prefixes being announced from unallocated address space: 197
    Number of addresses announced to Internet: 1965542656
        Equivalent to 117 /8s, 39 /16s and 205 /24s
        Percentage of available address space announced: 53.0
        Percentage of allocated address space announced: 63.4
        Percentage of available address space allocated: 83.7
        Percentage of address space in use by end-sites: 74.5
    Total number of prefixes smaller than registry allocations: 136040

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

    Prefixes being announced by APNIC Region ASes: 63222
        Total APNIC prefixes after maximum aggregation: 23413
        APNIC Deaggregation factor: 2.70
    Prefixes being announced from the APNIC address blocks: 60136
        Unique aggregates announced from the APNIC address blocks: 27076
    APNIC Region origin ASes present in the Internet Routing Table: 3473
        APNIC Prefixes per ASN: 17.32
    APNIC Region origin ASes announcing only one prefix: 937
    APNIC Region transit ASes present in the Internet Routing Table: 532
    Average APNIC Region AS path length visible: 3.5
        Max APNIC Region AS path length visible: 17
    Number of APNIC addresses announced to Internet: 388651936
        Equivalent to 23 /8s, 42 /16s and 91 /24s
        Percentage of available APNIC address space announced: 77.2

    APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
    (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
    APNIC Address Blocks 58/8, 59/8, 60/8, 61/8, 110/8, 111/8, 112/8,
                           113/8, 114/8, 115/8, 116/8, 117/8, 118/8, 119/8,
                           120/8, 121/8, 122/8, 123/8, 124/8, 125/8, 126/8,
                           202/8, 203/8, 210/8, 211/8, 218/8, 219/8, 220/8,
                           221/8, 222/8,

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

    Prefixes being announced by ARIN Region ASes: 124408
        Total ARIN prefixes after maximum aggregation: 64946
        ARIN Deaggregation factor: 1.92
    Prefixes being announced from the ARIN address blocks: 93756
        Unique aggregates announced from the ARIN address blocks: 34783
    ARIN Region origin ASes present in the Internet Routing Table: 12620
        ARIN Prefixes per ASN: 7.43
    ARIN Region origin ASes announcing only one prefix: 4875
    ARIN Region transit ASes present in the Internet Routing Table: 1203
    Average ARIN Region AS path length visible: 3.3
        Max ARIN Region AS path length visible: 16
    Number of ARIN addresses announced to Internet: 401999520
        Equivalent to 23 /8s, 246 /16s and 6 /24s
        Percentage of available ARIN address space announced: 82.6

    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, 46080-47103
    ARIN Address Blocks 24/8, 63/8, 64/8, 65/8, 66/8, 67/8, 68/8,
                            69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8,
                            76/8, 96/8, 97/8, 98/8, 99/8, 173/8, 174/8,
                           199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8,
                           216/8,

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

    Prefixes being announced by RIPE Region ASes: 60604
        Total RIPE prefixes after maximum aggregation: 36259
        RIPE Deaggregation factor: 1.67
    Prefixes being announced from the RIPE address blocks: 56206
        Unique aggregates announced from the RIPE address blocks: 37505
    RIPE Region origin ASes present in the Internet Routing Table: 12249
        RIPE Prefixes per ASN: 4.59
    RIPE Region origin ASes announcing only one prefix: 6452
    RIPE Region transit ASes present in the Internet Routing Table: 1870
    Average RIPE Region AS path length visible: 4.0
        Max RIPE Region AS path length visible: 17
    Number of RIPE addresses announced to Internet: 380606560
        Equivalent to 22 /8s, 175 /16s and 152 /24s
        Percentage of available RIPE address space announced: 87.3

    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
                           40960-45055, 47104-49151
    RIPE Address Blocks 62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8,
                            83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8,
                            90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 193/8,
                           194/8, 195/8, 212/8, 213/8, 217/8,

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

    Prefixes being announced by LACNIC Region ASes: 22517
        Total LACNIC prefixes after maximum aggregation: 5598
        LACNIC Deaggregation factor: 4.02
    Prefixes being announced from the LACNIC address blocks: 20539
        Unique aggregates announced from the LACNIC address blocks: 11442
    LACNIC Region origin ASes present in the Internet Routing Table: 1038
        LACNIC Prefixes per ASN: 19.79
    LACNIC Region origin ASes announcing only one prefix: 339
    LACNIC Region transit ASes present in the Internet Routing Table: 169
    Average LACNIC Region AS path length visible: 4.0
        Max LACNIC Region AS path length visible: 18
    Number of LACNIC addresses announced to Internet: 58459904
        Equivalent to 3 /8s, 124 /16s and 7 /24s
        Percentage of available LACNIC address space announced: 58.1

    LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
    LACNIC Address Blocks 186/8, 187/8, 189/8, 190/8, 200/8, 201/8,

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

    Prefixes being announced by AfriNIC Region ASes: 4151
        Total AfriNIC prefixes after maximum aggregation: 1350
        AfriNIC Deaggregation factor: 3.07
    Prefixes being announced from the AfriNIC address blocks: 4453
        Unique aggregates announced from the AfriNIC address blocks: 2199
    AfriNIC Region origin ASes present in the Internet Routing Table: 271
        AfriNIC Prefixes per ASN: 16.43
    AfriNIC Region origin ASes announcing only one prefix: 84
    AfriNIC Region transit ASes present in the Internet Routing Table: 55
    Average AfriNIC Region AS path length visible: 4.0
        Max AfriNIC Region AS path length visible: 15
    Number of AfriNIC addresses announced to Internet: 13028352
        Equivalent to 0 /8s, 198 /16s and 204 /24s
        Percentage of available AfriNIC address space announced: 25.9

    AfriNIC AS Blocks 36864-37887 & ERX transfers
    AfriNIC Address Blocks 41/8, 196/8, 197/8,

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

      ASN No of nets /20 equiv MaxAgg Description
    17488 1442 101 104 Hathway IP Over Cable Interne
     4766 1270 6409 364 Korea Telecom (KIX)
     4755 1166 474 154 TATA Communications formerly
     9583 1135 88 481 Sify Limited
     4134 907 15536 371 CHINANET-BACKBONE
    23577 803 34 692 Korea Telecom (ATM-MPLS)
    18101 787 168 32 Reliance Infocom Ltd Internet
     4780 727 357 63 Digital United Inc.
     9498 688 295 50 BHARTI BT INTERNET LTD.
     7545 649 152 82 TPG Internet Pty Ltd

    Complete listing at http://thyme.apnic.net/current/data-ASnet-APNIC

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

      ASN No of nets /20 equiv MaxAgg Description
     6389 4376 3434 344 bellsouth.net, inc.
      209 2988 4032 620 Qwest
     6298 2168 334 632 Cox Communicatons
    20115 1841 1460 737 Charter Communications
     1785 1701 717 154 PaeTec Communications, Inc.
     6478 1609 369 198 AT&T Worldnet Services
     2386 1595 701 901 AT&T Data Communications Serv
     4323 1592 1068 378 Time Warner Telecom
     7018 1421 5872 982 AT&T WorldNet Services
    11492 1219 192 12 Cable One

    Complete listing at http://thyme.apnic.net/current/data-ASnet-ARIN

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

      ASN No of nets /20 equiv MaxAgg Description
     3292 432 1765 382 TDC Tele Danmark
    12479 371 578 6 Uni2 Autonomous System
    30890 369 80 196 SC Kappa Invexim SRL
     3301 337 1429 306 TeliaNet Sweden
    29049 331 26 3 AzerSat LLC.
     8866 330 109 22 Bulgarian Telecommunication C
     3320 326 7063 275 Deutsche Telekom AG
     3215 314 2776 97 France Telecom Transpac
     8452 311 188 11 TEDATA
     8551 303 286 36 Bezeq International

    Complete listing at http://thyme.apnic.net/current/data-ASnet-RIPE

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

      ASN No of nets /20 equiv MaxAgg Description
     8151 1400 2832 221 UniNet S.A. de C.V.
    11830 664 299 9 Instituto Costarricense de El
    22047 552 270 14 VTR PUNTO NET S.A.
    10620 546 122 40 TVCABLE BOGOTA
     7303 497 244 72 Telecom Argentina Stet-France
    16814 426 27 10 NSS, S.A.
     6471 425 88 50 ENTEL CHILE S.A.
    11172 402 118 72 Servicios Alestra S.A de C.V
    28573 354 483 28 NET Servicos de Comunicao S.A
    14117 335 23 9 Telefonica del Sur S.A.

    Complete listing at http://thyme.apnic.net/current/data-ASnet-LACNIC

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

      ASN No of nets /20 equiv MaxAgg Description
    24863 513 72 46 LINKdotNET AS number
     3741 270 857 226 The Internet Solution
    20858 261 34 3 EgyNet
     2018 239 215 140 Tertiary Education Network
    33783 143 10 17 EEPAD TISP TELECOM & INTERNET
     6713 137 135 11 Itissalat Al-MAGHRIB
     5536 120 8 17 Internet Egypt Network
     5713 119 555 68 Telkom SA Ltd
    33776 116 6 3 Starcomms Nigeria Limited
    29571 112 15 8 Ci Telecom Autonomous system

    Complete listing at http://thyme.apnic.net/current/data-ASnet-AFRINIC

    Global Per AS prefix count summary
    ----------------------------------

      ASN No of nets /20 equiv MaxAgg Description
     6389 4376 3434 344 bellsouth.net, inc.
      209 2988 4032 620 Qwest
     6298 2168 334 632 Cox Communicatons
    20115 1841 1460 737 Charter Communications
     1785 1701 717 154 PaeTec Communications, Inc.
     6478 1609 369 198 AT&T Worldnet Services
     2386 1595 701 901 AT&T Data Communications Serv
     4323 1592 1068 378 Time Warner Telecom
    17488 1442 101 104 Hathway IP Over Cable Interne
     7018 1421 5872 982 AT&T WorldNet Services

    Complete listing at http://thyme.apnic.net/current/data-ASnet

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

      ASN No of nets Net Savings Description
      209 2988 2368 Qwest
     1785 1701 1547 PaeTec Communications, Inc.
     6298 2168 1536 Cox Communicatons
     6478 1609 1411 AT&T Worldnet Services
    17488 1442 1338 Hathway IP Over Cable Interne
     4323 1592 1214 Time Warner Telecom
    11492 1219 1207 Cable One
     8151 1400 1179 UniNet S.A. de C.V.
    20115 1841 1104 Charter Communications
    18566 1059 1049 Covad Communications

    Complete listing at http://thyme.apnic.net/current/data-CIDRnet

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

    Bad AS Designation Network Transit AS Description
    16927 UNALLOCATED 12.0.252.0/23 7018 AT&T WorldNet Servic
    15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
    32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic
    13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic
    32567 UNALLOCATED 12.25.107.0/24 7018 AT&T WorldNet Servic
    26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic
    26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic
    26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic
    32326 UNALLOCATED 12.40.49.0/24 3549 Global Crossing
    25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic

    Complete listing at http://thyme.apnic.net/current/data-badAS

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

    Network Origin AS Description
    24.75.116.0/22 10796 ServiceCo LLC - Road Runner
    24.75.160.0/19 7843 Adelphia Corp.
    24.142.40.0/21 7018 AT&T WorldNet Services
    24.142.160.0/19 7018 AT&T WorldNet Services
    24.246.0.0/17 7018 AT&T WorldNet Services
    24.246.128.0/18 7018 AT&T WorldNet Services
    62.61.220.0/24 24974 Tachyon Europe BV - Wireless
    62.61.221.0/24 24974 Tachyon Europe BV - Wireless
    63.140.213.0/24 22555 Universal Talkware Corporatio
    63.143.251.0/24 22555 Universal Talkware Corporatio

    Complete listing at http://thyme.apnic.net/current/data-add-IANA

    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 /10:19 /11:55 /12:158
    /13:308 /14:550 /15:1078 /16:10184 /17:4479 /18:7721
    /19:16582 /20:19468 /21:19158 /22:24307 /23:24990 /24:143522
    /25:867 /26:1038 /27:796 /28:97 /29:9 /30:1
    /31:0 /32:7

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

      ASN No of nets Total ann. Description
     6389 2859 4376 bellsouth.net, inc.
     6298 2142 2168 Cox Communicatons
      209 1710 2988 Qwest
     2386 1274 1595 AT&T Data Communications Serv
    17488 1232 1442 Hathway IP Over Cable Interne
    11492 1194 1219 Cable One
     1785 1163 1701 PaeTec Communications, Inc.
     6478 1106 1609 AT&T Worldnet Services
    18566 1040 1059 Covad Communications
     4766 1016 1270 Korea Telecom (KIX)

    Complete listing at http://thyme.apnic.net/current/data/sXXas-nos

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

       4:12 8:160 12:2183 13:2 15:21 16:3
      17:5 20:36 24:1125 32:54 38:487 40:93
      41:803 43:1 44:2 47:12 52:3 55:3
      56:3 57:26 58:497 59:564 60:458 61:1041
      62:1123 63:2012 64:3301 65:2445 66:3515 67:1368
      68:847 69:2365 70:898 71:171 72:2084 73:7
      74:1313 75:171 76:288 77:898 78:523 79:288
      80:932 81:856 82:573 83:411 84:585 85:1047
      86:503 87:651 88:350 89:1373 90:29 91:1718
      92:325 93:995 94:689 95:49 96:92 97:138
      98:403 99:9 100:1 110:1 111:1 113:41
     114:127 115:163 116:1045 117:406 118:261 119:554
     120:106 121:665 122:893 123:444 124:843 125:1246
     128:358 129:219 130:136 131:410 132:72 133:9
     134:187 135:31 136:223 137:116 138:144 139:86
     140:414 141:111 142:371 143:303 144:308 145:52
     146:373 147:143 148:607 149:212 150:143 151:210
     152:141 153:131 154:10 155:276 156:165 157:302
     158:168 159:298 160:273 161:132 162:251 163:132
     164:518 165:513 166:361 167:341 168:650 169:155
     170:459 171:40 172:10 173:126 174:7 187:18
     188:1 189:324 190:2433 192:5823 193:4155 194:3288
     195:2613 196:1020 198:3710 199:3313 200:5535 201:1476
     202:7632 203:8060 204:3924 205:2188 206:2305 207:2761
     208:3754 209:3438 210:2633 211:1132 212:1545 213:1637
     214:70 215:25 216:4393 217:1241 218:359 219:419
     220:1094 221:458 222:312

    End of report


  • Next message: Måns Nilsson: "Re: an over-the-top data center"





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