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[apops] Weekly Routing Table Report



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

The posting is sent to APOPS, NANOG, AfNOG, SANOG, PacNOG, SAFNOG
TZNOG, MENOG, BJNOG, SDNOG, CMNOG, LACNOG and the RIPE Routing WG.

Daily listings are sent to bgp-stats@lists.apnic.net

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

If you have any comments please contact Philip Smith <pfsinoz@gmail.com>.

Routing Table Report   04:00 +10GMT Sat 21 Dec, 2019

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

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

BGP routing table entries examined:                              788605
    Prefixes after maximum aggregation (per Origin AS):          300793
    Deaggregation factor:                                          2.62
    Unique aggregates announced (without unneeded subnets):      386434
Total ASes present in the Internet Routing Table:                 66571
    Prefixes per ASN:                                             11.85
Origin-only ASes present in the Internet Routing Table:           57215
Origin ASes announcing only one prefix:                           24175
Transit ASes present in the Internet Routing Table:                9356
Transit-only ASes present in the Internet Routing Table:            289
Average AS path length visible in the Internet Routing Table:       4.4
    Max AS path length visible:                                      41
    Max AS path prepend of ASN (  8697)                              28
Prefixes from unregistered ASNs in the Routing Table:              1311
    Number of instances of unregistered ASNs:                      1313
Number of 32-bit ASNs allocated by the RIRs:                      29921
Number of 32-bit ASNs visible in the Routing Table:               24634
Prefixes from 32-bit ASNs in the Routing Table:                  112572
Number of bogon 32-bit ASNs visible in the Routing Table:            29
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            285
Number of addresses announced to Internet:                   2845478784
    Equivalent to 169 /8s, 154 /16s and 143 /24s
    Percentage of available address space announced:               76.9
    Percentage of allocated address space announced:               76.9
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               99.4
Total number of prefixes smaller than registry allocations:      263835

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

Prefixes being announced by APNIC Region ASes:                   209493
    Total APNIC prefixes after maximum aggregation:               61025
    APNIC Deaggregation factor:                                    3.43
Prefixes being announced from the APNIC address blocks:          203626
    Unique aggregates announced from the APNIC address blocks:    84593
APNIC Region origin ASes present in the Internet Routing Table:   10259
    APNIC Prefixes per ASN:                                       19.85
APNIC Region origin ASes announcing only one prefix:               2864
APNIC Region transit ASes present in the Internet Routing Table:   1532
Average APNIC Region AS path length visible:                        4.6
    Max APNIC Region AS path length visible:                         26
Number of APNIC region 32-bit ASNs visible in the Routing Table:   5304
Number of APNIC addresses announced to Internet:              767196672
    Equivalent to 45 /8s, 186 /16s and 126 /24s
APNIC AS Blocks        4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations)  23552-24575, 37888-38911, 45056-46079, 55296-56319,
                       58368-59391, 63488-64098, 64297-64395, 131072-141625
APNIC Address Blocks     1/8,  14/8,  27/8,  36/8,  39/8,  42/8,  43/8,
                        49/8,  58/8,  59/8,  60/8,  61/8, 101/8, 103/8,
                       106/8, 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, 133/8, 150/8, 153/8,
                       163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8,
                       203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8,
                       222/8, 223/8,

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

Prefixes being announced by ARIN Region ASes:                    231277
    Total ARIN prefixes after maximum aggregation:               107122
    ARIN Deaggregation factor:                                     2.16
Prefixes being announced from the ARIN address blocks:           229192
    Unique aggregates announced from the ARIN address blocks:    116042
ARIN Region origin ASes present in the Internet Routing Table:    18342
    ARIN Prefixes per ASN:                                        12.50
ARIN Region origin ASes announcing only one prefix:                6764
ARIN Region transit ASes present in the Internet Routing Table:    1916
Average ARIN Region AS path length visible:                         3.9
    Max ARIN Region AS path length visible:                          23
Number of ARIN region 32-bit ASNs visible in the Routing Table:    3077
Number of ARIN addresses announced to Internet:              1073924096
    Equivalent to 64 /8s, 2 /16s and 200 /24s
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
                       53248-55295, 62464-63487, 64198-64296, 393216-399260
ARIN Address Blocks      3/8,   4/8,   6/8,   7/8,   8/8,   9/8,  11/8,
                        12/8,  13/8,  15/8,  16/8,  17/8,  18/8,  19/8,
                        20/8,  21/8,  22/8,  23/8,  24/8,  26/8,  28/8,
                        29/8,  30/8,  32/8,  33/8,  34/8,  35/8,  38/8,
                        40/8,  44/8,  47/8,  48/8,  50/8,  52/8,  53/8,
                        54/8,  55/8,  56/8,  57/8,  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, 100/8, 104/8, 107/8, 108/8, 128/8, 129/8,
                       130/8, 131/8, 132/8, 134/8, 135/8, 136/8, 137/8,
                       138/8, 139/8, 140/8, 142/8, 143/8, 144/8, 146/8,
                       147/8, 148/8, 149/8, 152/8, 155/8, 156/8, 157/8,
                       158/8, 159/8, 160/8, 161/8, 162/8, 164/8, 165/8,
                       166/8, 167/8, 168/8, 169/8, 170/8, 172/8, 173/8,
                       174/8, 184/8, 192/8, 198/8, 199/8, 204/8, 205/8,
                       206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8,
                      

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

Prefixes being announced by RIPE Region ASes:                    222832
    Total RIPE prefixes after maximum aggregation:               103895
    RIPE Deaggregation factor:                                     2.14
Prefixes being announced from the RIPE address blocks:           219254
    Unique aggregates announced from the RIPE address blocks:    129971
RIPE Region origin ASes present in the Internet Routing Table:    26713
    RIPE Prefixes per ASN:                                         8.21
RIPE Region origin ASes announcing only one prefix:               11698
RIPE Region transit ASes present in the Internet Routing Table:    3760
Average RIPE Region AS path length visible:                         4.5
    Max RIPE Region AS path length visible:                          34
Number of RIPE region 32-bit ASNs visible in the Routing Table:    8796
Number of RIPE addresses announced to Internet:               723838080
    Equivalent to 43 /8s, 36 /16s and 228 /24s
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, 47104-52223, 56320-58367
                       59392-61439, 61952-62463, 64396-64495
                       196608-210331
RIPE Address Blocks      2/8,   5/8,  25/8,  31/8,  37/8,  46/8,  51/8,
                        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, 109/8,
                       141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8,
                       193/8, 194/8, 195/8, 212/8, 213/8, 217/8,

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

Prefixes being announced by LACNIC Region ASes:                  102320
    Total LACNIC prefixes after maximum aggregation:              23577
    LACNIC Deaggregation factor:                                   4.34
Prefixes being announced from the LACNIC address blocks:         103490
    Unique aggregates announced from the LACNIC address blocks:   45126
LACNIC Region origin ASes present in the Internet Routing Table:   9241
    LACNIC Prefixes per ASN:                                      11.20
LACNIC Region origin ASes announcing only one prefix:              2368
LACNIC Region transit ASes present in the Internet Routing Table:  1743
Average LACNIC Region AS path length visible:                       5.3
    Max LACNIC Region AS path length visible:                        41
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  6811
Number of LACNIC addresses announced to Internet:             173949184
    Equivalent to 10 /8s, 94 /16s and 65 /24s
LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 64099-64197, 262144-270748 + ERX transfers
LACNIC Address Blocks  177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
                       191/8, 200/8, 201/8,

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

Prefixes being announced by AfriNIC Region ASes:                  21371
    Total AfriNIC prefixes after maximum aggregation:              4396
    AfriNIC Deaggregation factor:                                  4.86
Prefixes being announced from the AfriNIC address blocks:         32758
    Unique aggregates announced from the AfriNIC address blocks:  10465
AfriNIC Region origin ASes present in the Internet Routing Table:  1351
    AfriNIC Prefixes per ASN:                                     24.25
AfriNIC Region origin ASes announcing only one prefix:              481
AfriNIC Region transit ASes present in the Internet Routing Table:  272
Average AfriNIC Region AS path length visible:                      5.0
    Max AfriNIC Region AS path length visible:                       23
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  646
Number of AfriNIC addresses announced to Internet:            106280704
    Equivalent to 6 /8s, 85 /16s and 183 /24s
AfriNIC AS Blocks      36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks  41/8,  45/8, 102/8, 105/8, 154/8, 196/8, 197/8,
                      

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  7545        5171        636     600  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4690       4192      73  ERX-CERNET-BKB China Education and Rese
  7552        3279       1331      25  VIETEL-AS-AP Viettel Group, VN
 45899        3117       1781     106  VNPT-AS-VN VNPT Corp, VN
  7713        2699        798     490  TELKOMNET-AS-AP PT Telekomunikasi Indon
  9808        2610       9043      62  CMNET-GD Guangdong Mobile Communication
  4766        2290      11105     581  KIXS-AS-KR Korea Telecom, KR
  9498        2216        433     214  BBIL-AP BHARTI Airtel Ltd., IN
  9829        2212       1390     290  BSNL-NIB National Internet Backbone, IN
  4755        2149        442     195  TATACOMM-AS TATA Communications formerl

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  7155        4047        280      27  VIASAT-SP-BACKBONE - ViaSat,Inc., US
 11492        3847        253     644  CABLEONE - CABLE ONE, INC., US
 16509        3808       7704    1678  AMAZON-02 - Amazon.com, Inc., US
 22773        3504       2971     152  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
  6327        3377       1324      93  SHAW - Shaw Communications Inc., CA
 16625        2958       1549    2124  AKAMAI-AS - Akamai Technologies, Inc., 
 30036        2261        353     157  MEDIACOM-ENTERPRISE-BUSINESS - Mediacom
   209        2166       5075     534  CENTURYLINK-US-LEGACY-QWEST - CenturyLi
 20115        2134       2773     518  CHARTER-20115 - Charter Communications,
 18566        2063        405     103  MEGAPATH5-US - MegaPath Corporation, US

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
 12479        5830       1631     135  UNI2-AS, ES
 39891        4034        219      19  ALJAWWALSTC-AS, SA
 31334        3361        484      13  KABELDEUTSCHLAND-AS, DE
  8551        3082        379      46  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 20940        2812        472    1964  AKAMAI-ASN1, US
 12389        2421       2237     701  ROSTELECOM-AS, RU
 34984        2136        348     554  TELLCOM-AS, TR
  9009        2020        218    1094  M247, GB
  9121        1950       1691      18  TTNET, TR
 13188        1605        100      46  TRIOLAN, UA

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  8151        6175       3299     613  Uninet S.A. de C.V., MX
 10620        3362        533     462  Telmex Colombia S.A., CO
 11830        2681        369      63  Instituto Costarricense de Electricidad
  6503        1681        323     388  Axtel, S.A.B. de C.V., MX
  7303        1478       1026     265  Telecom Argentina S.A., AR
 28573        1226       2234     205  CLARO S.A., BR
 13999        1140        495     273  Mega Cable, S.A. de C.V., MX
  3816        1119        561     133  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
  6147        1095        379      39  Telefonica del Peru S.A.A., PE
 11172         944        111      65  Alestra, S. de R.L. de C.V., MX

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
 24863        1244        393      23  LINKdotNET-AS, EG
 36992        1032       1535      73  ETISALAT-MISR, EG
 24835         979        570      24  RAYA-AS, EG
 36903         876        452      97  MT-MPLS, MA
  6713         623       1863      34  IAM-AS, MA
 29571         557         68      11  ORANGE-COTE-IVOIRE, CI
 37342         483         32       1  MOVITEL, MZ
 15399         359         45      10  WANANCHI-, KE
 36935         358        522      41  Vodafone-, EG
 23889         354        231      15  MauritiusTelecom, MU

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  8151        6175       3299     613  Uninet S.A. de C.V., MX
 12479        5830       1631     135  UNI2-AS, ES
  7545        5171        636     600  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4690       4192      73  ERX-CERNET-BKB China Education and Rese
  7155        4047        280      27  VIASAT-SP-BACKBONE - ViaSat,Inc., US
 39891        4034        219      19  ALJAWWALSTC-AS, SA
 11492        3847        253     644  CABLEONE - CABLE ONE, INC., US
 16509        3808       7704    1678  AMAZON-02 - Amazon.com, Inc., US
 22773        3504       2971     152  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
  6327        3377       1324      93  SHAW - Shaw Communications Inc., CA

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

Global Per AS Maximum Aggregation summary
-----------------------------------------

   ASN  No of nets  Net Savings  Description
 12479        5830         5695  UNI2-AS, ES
  4538        4690         4617  ERX-CERNET-BKB China Education and Research Net
  7545        5171         4571  TPG-INTERNET-AP TPG Telecom Limited, AU
  7155        4047         4020  VIASAT-SP-BACKBONE - ViaSat,Inc., US
 39891        4034         4015  ALJAWWALSTC-AS, SA
 22773        3504         3352  ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
 31334        3361         3348  KABELDEUTSCHLAND-AS, DE
  6327        3377         3284  SHAW - Shaw Communications Inc., CA
  7552        3279         3254  VIETEL-AS-AP Viettel Group, VN
 11492        3847         3203  CABLEONE - CABLE ONE, INC., US

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

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

    Bad AS  Designation  Net Originated      Transit AS  Transit AS Name
     62828  UNALLOCATED  8.21.130.0/24             3356  LEVEL3 - Level 3 Parent, LLC
    393266  UNALLOCATED  8.23.52.0/24               174  COGENT-174 - Cogent Communic
     62485  UNALLOCATED  8.23.229.0/24             3356  LEVEL3 - Level 3 Parent, LLC
     32985  UNALLOCATED  8.28.31.0/24              3356  LEVEL3 - Level 3 Parent, LLC
    394936  UNALLOCATED  8.33.224.0/24              174  COGENT-174 - Cogent Communic
     23071  UNALLOCATED  8.33.235.0/24             3356  LEVEL3 - Level 3 Parent, LLC
     27205  UNALLOCATED  8.38.16.0/21              6461  ZAYO-6461 - Zayo Bandwidth, 
     27205  UNALLOCATED  8.38.16.0/22             32787  PROLEXIC-TECHNOLOGIES-DDOS-M
     27205  UNALLOCATED  8.38.20.0/22             32787  PROLEXIC-TECHNOLOGIES-DDOS-M
     14109  UNALLOCATED  8.38.252.0/24             3356  LEVEL3 - Level 3 Parent, LLC

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

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix                Origin AS  Description
192.88.99.0/24             6939  HURRICANE - Hurricane Electric LLC, US

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

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

Network Originated    Origin AS  Transit AS  Origin AS Name
23.136.224.0/24           15206         174  6X7 - 6x7 Networks LLC, ZZ
27.100.7.0/24             56096       45455  UNKNOWN
27.126.156.0/22           55827        9930  UNKNOWN
27.126.156.0/23           55827        9930  UNKNOWN
27.126.158.0/23           55827        9930  UNKNOWN
41.67.192.0/18            15964       12956  CAMNET-AS, CM
41.67.192.0/24            15964       12956  CAMNET-AS, CM
41.67.200.0/24            15964       12956  CAMNET-AS, CM
41.67.201.0/24            15964       12956  CAMNET-AS, CM
41.67.202.0/24            15964       12956  CAMNET-AS, CM

Complete listing at http://thyme.rand.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        /8:10       /9:11      /10:37      /11:98      /12:287     
/13:579     /14:1158    /15:1920    /16:13351   /17:8103    /18:13863   
/19:25755   /20:40354   /21:47495   /22:98178   /23:80351   /24:455733  
/25:1322    /26:0       /27:0       /28:0       /29:0       /30:0       
/31:0       /32:0       

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

   ASN  No of nets  Total ann.  Description
 12479        4789        5830  UNI2-AS, ES
 31334        3206        3361  KABELDEUTSCHLAND-AS, DE
  6327        3165        3377  SHAW - Shaw Communications Inc., CA
  7155        3139        4047  VIASAT-SP-BACKBONE - ViaSat,Inc., US
 11492        3000        3847  CABLEONE - CABLE ONE, INC., US
 39891        2946        4034  ALJAWWALSTC-AS, SA
 22773        2727        3504  ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
  8551        2541        3082  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 11830        2029        2681  Instituto Costarricense de Electricidad y Telec
 30036        2010        2261  MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communi

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

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

   1:1513      2:1147      3:12        4:19        5:3167      6:47     
   8:1363      9:1        12:1793     13:496      14:2187     15:54     
  16:9        17:280      18:79       20:58       23:3152     24:2611   
  25:4        27:2509     31:2811     32:101      35:46       36:926    
  37:3216     38:1804     39:304      40:133      41:3294     42:843    
  43:2109     44:186      45:12580    46:3242     47:260      49:1427   
  50:1134     51:344      52:1131     54:276      55:687      56:6      
  57:47       58:1896     59:1118     60:663      61:2212     62:2129   
  63:1921     64:5005     65:2298     66:4806     67:2809     68:1219   
  69:3810     70:1392     71:671      72:2755     74:2691     75:1435   
  76:666      77:2536     78:1969     79:2325     80:1799     81:1535   
  82:1191     83:981      84:1195     85:2544     86:580      87:1648   
  88:1063     89:2655     90:267      91:7462     92:1447     93:2440   
  94:2602     95:3693     96:1002     97:339      98:959      99:963    
 100:84      101:1093    102:717     103:22818   104:3618    105:369    
 106:841     107:1855    108:689     109:3642    110:1772    111:1932   
 112:1549    113:1380    114:1451    115:1838    116:1803    117:1994   
 118:2106    119:1672    120:895     121:1037    122:2361    123:1861   
 124:1543    125:2016    128:1383    129:883     130:581     131:1829   
 132:776     133:298     134:1277    135:272     136:598     137:857    
 138:2169    139:985     140:603     141:853     142:817     143:1090   
 144:932     145:290     146:1458    147:1009    148:1892    149:1041   
 150:806     151:1280    152:1455    153:368     154:4629    155:887    
 156:3064    157:1063    158:695     159:1942    160:1672    161:1055   
 162:3029    163:872     164:1296    165:1214    166:536     167:1452   
 168:3567    169:492     170:4196    171:716     172:1851    173:2327   
 174:1038    175:994     176:2718    177:4126    178:2840    179:1431   
 180:2176    181:2373    182:2819    183:1114    184:2392    185:15853  
 186:3844    187:2554    188:3478    189:2072    190:8294    191:1463   
 192:10179   193:7292    194:5881    195:4256    196:3370    197:1953   
 198:6059    199:5921    200:7148    201:5154    202:10420   203:10240  
 204:4566    205:3070    206:3257    207:3235    208:3998    209:4336   
 210:3993    211:1984    212:3317    213:2990    214:1137    215:52     
 216:5890    217:2310    218:890     219:603     220:1967    221:925    
 222:1010    223:1359   

End of report