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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 28 Dec, 2019

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

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

BGP routing table entries examined:                              789378
    Prefixes after maximum aggregation (per Origin AS):          300819
    Deaggregation factor:                                          2.62
    Unique aggregates announced (without unneeded subnets):      386795
Total ASes present in the Internet Routing Table:                 66619
    Prefixes per ASN:                                             11.85
Origin-only ASes present in the Internet Routing Table:           57269
Origin ASes announcing only one prefix:                           24202
Transit ASes present in the Internet Routing Table:                9350
Transit-only ASes present in the Internet Routing Table:            285
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                      41
    Max AS path prepend of ASN (  8697)                              28
Prefixes from unregistered ASNs in the Routing Table:              1318
    Number of instances of unregistered ASNs:                      1318
Number of 32-bit ASNs allocated by the RIRs:                      29978
Number of 32-bit ASNs visible in the Routing Table:               24677
Prefixes from 32-bit ASNs in the Routing Table:                  112816
Number of bogon 32-bit ASNs visible in the Routing Table:            28
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            296
Number of addresses announced to Internet:                   2845720960
    Equivalent to 169 /8s, 158 /16s and 65 /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:      264051

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

Prefixes being announced by APNIC Region ASes:                   209874
    Total APNIC prefixes after maximum aggregation:               61094
    APNIC Deaggregation factor:                                    3.44
Prefixes being announced from the APNIC address blocks:          203973
    Unique aggregates announced from the APNIC address blocks:    84591
APNIC Region origin ASes present in the Internet Routing Table:   10280
    APNIC Prefixes per ASN:                                       19.84
APNIC Region origin ASes announcing only one prefix:               2868
APNIC Region transit ASes present in the Internet Routing Table:   1530
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:   5326
Number of APNIC addresses announced to Internet:              767362816
    Equivalent to 45 /8s, 189 /16s and 7 /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:                    231596
    Total ARIN prefixes after maximum aggregation:               107134
    ARIN Deaggregation factor:                                     2.16
Prefixes being announced from the ARIN address blocks:           229437
    Unique aggregates announced from the ARIN address blocks:    116167
ARIN Region origin ASes present in the Internet Routing Table:    18347
    ARIN Prefixes per ASN:                                        12.51
ARIN Region origin ASes announcing only one prefix:                6761
ARIN Region transit ASes present in the Internet Routing Table:    1913
Average ARIN Region AS path length visible:                         3.9
    Max ARIN Region AS path length visible:                          28
Number of ARIN region 32-bit ASNs visible in the Routing Table:    3083
Number of ARIN addresses announced to Internet:              1074125056
    Equivalent to 64 /8s, 5 /16s and 217 /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:                    222906
    Total RIPE prefixes after maximum aggregation:               103929
    RIPE Deaggregation factor:                                     2.14
Prefixes being announced from the RIPE address blocks:           219332
    Unique aggregates announced from the RIPE address blocks:    130015
RIPE Region origin ASes present in the Internet Routing Table:    26731
    RIPE Prefixes per ASN:                                         8.21
RIPE Region origin ASes announcing only one prefix:               11714
RIPE Region transit ASes present in the Internet Routing Table:    3758
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:    8805
Number of RIPE addresses announced to Internet:               723613824
    Equivalent to 43 /8s, 33 /16s and 120 /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:                  102477
    Total LACNIC prefixes after maximum aggregation:              23476
    LACNIC Deaggregation factor:                                   4.37
Prefixes being announced from the LACNIC address blocks:         103640
    Unique aggregates announced from the LACNIC address blocks:   45217
LACNIC Region origin ASes present in the Internet Routing Table:   9249
    LACNIC Prefixes per ASN:                                      11.21
LACNIC Region origin ASes announcing only one prefix:              2381
LACNIC Region transit ASes present in the Internet Routing Table:  1748
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:  6817
Number of LACNIC addresses announced to Internet:             173920768
    Equivalent to 10 /8s, 93 /16s and 210 /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:                  21206
    Total AfriNIC prefixes after maximum aggregation:              4409
    AfriNIC Deaggregation factor:                                  4.81
Prefixes being announced from the AfriNIC address blocks:         32700
    Unique aggregates announced from the AfriNIC address blocks:  10568
AfriNIC Region origin ASes present in the Internet Routing Table:  1351
    AfriNIC Prefixes per ASN:                                     24.20
AfriNIC Region origin ASes announcing only one prefix:              478
AfriNIC Region transit ASes present in the Internet Routing Table:  273
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:            106406656
    Equivalent to 6 /8s, 87 /16s and 163 /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        5164        636     597  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4697       4192      73  ERX-CERNET-BKB China Education and Rese
  7552        3283       1331      25  VIETEL-AS-AP Viettel Group, VN
 45899        3114       1781     105  VNPT-AS-VN VNPT Corp, VN
  7713        2697        798     495  TELKOMNET-AS-AP PT Telekomunikasi Indon
  9808        2613       9043      62  CMNET-GD Guangdong Mobile Communication
  4766        2269      11102     567  KIXS-AS-KR Korea Telecom, KR
  9498        2216        433     214  BBIL-AP BHARTI Airtel Ltd., IN
  9829        2204       1389     285  BSNL-NIB National Internet Backbone, IN
  4755        2150        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        3849        253     645  CABLEONE - CABLE ONE, INC., US
 16509        3797       7702    1678  AMAZON-02 - Amazon.com, Inc., US
 22773        3508       2971     153  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
  6327        3364       1324      93  SHAW - Shaw Communications Inc., CA
 16625        2965       1555    2130  AKAMAI-AS - Akamai Technologies, Inc., 
 30036        2277        357      89  MEDIACOM-ENTERPRISE-BUSINESS - Mediacom
   209        2174       5075     540  CENTURYLINK-US-LEGACY-QWEST - CenturyLi
 20115        2134       2773     518  CHARTER-20115 - Charter Communications,
 18566        2062        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        5853       1631     135  UNI2-AS, ES
 39891        4034        219      19  ALJAWWALSTC-AS, SA
 31334        3361        484      13  KABELDEUTSCHLAND-AS, DE
  8551        3060        379      46  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 20940        2813        472    1962  AKAMAI-ASN1, US
 12389        2423       2237     701  ROSTELECOM-AS, RU
 34984        2047        348     558  TELLCOM-AS, TR
  9009        2023        218    1096  M247, GB
  9121        1948       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        6176       3299     614  Uninet S.A. de C.V., MX
 10620        3363        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        1477       1022     264  Telecom Argentina S.A., AR
 28573        1269       2234     206  CLARO S.A., BR
 13999        1145        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         943        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        1245        393      23  LINKdotNET-AS, EG
 36992        1033       1535      73  ETISALAT-MISR, EG
 24835         978        566      24  RAYA-AS, EG
 36903         876        452      97  MT-MPLS, MA
  6713         622       1863      34  IAM-AS, MA
 29571         559         68      11  ORANGE-COTE-IVOIRE, CI
 37342         483         32       1  MOVITEL, MZ
 36935         371        522      40  Vodafone-, EG
 23889         354        231      15  MauritiusTelecom, MU
 15399         347         45      10  WANANCHI-, KE

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        6176       3299     614  Uninet S.A. de C.V., MX
 12479        5853       1631     135  UNI2-AS, ES
  7545        5164        636     597  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4697       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        3849        253     645  CABLEONE - CABLE ONE, INC., US
 16509        3797       7702    1678  AMAZON-02 - Amazon.com, Inc., US
 22773        3508       2971     153  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
  6327        3364       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        5853         5718  UNI2-AS, ES
  4538        4697         4624  ERX-CERNET-BKB China Education and Research Net
  7545        5164         4567  TPG-INTERNET-AP TPG Telecom Limited, AU
  7155        4047         4020  VIASAT-SP-BACKBONE - ViaSat,Inc., US
 39891        4034         4015  ALJAWWALSTC-AS, SA
 22773        3508         3355  ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
 31334        3361         3348  KABELDEUTSCHLAND-AS, DE
  6327        3364         3271  SHAW - Shaw Communications Inc., CA
  7552        3283         3258  VIETEL-AS-AP Viettel Group, VN
 11492        3849         3204  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  UNASSIGNED
27.100.7.0/24             56096       45455  UNASSIGNED
27.126.156.0/22           55827        9930  UNASSIGNED
27.126.156.0/23           55827        9930  UNASSIGNED
27.126.158.0/23           55827        9930  UNASSIGNED
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    /16:13357   /17:8091    /18:13868   
/19:25745   /20:40336   /21:47526   /22:98233   /23:80548   /24:456256  
/25:1318    /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        4814        5853  UNI2-AS, ES
 31334        3206        3361  KABELDEUTSCHLAND-AS, DE
  6327        3152        3364  SHAW - Shaw Communications Inc., CA
  7155        3139        4047  VIASAT-SP-BACKBONE - ViaSat,Inc., US
 11492        3002        3849  CABLEONE - CABLE ONE, INC., US
 39891        2946        4034  ALJAWWALSTC-AS, SA
 22773        2730        3508  ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
  8551        2519        3060  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 11830        2029        2681  Instituto Costarricense de Electricidad y Telec
 30036        2026        2277  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)
----------------------------------------------

   1:1529      2:1152      3:12        4:19        5:3204      6:47     
   8:1364      9:1        12:1795     13:495      14:2183     15:54     
  16:9        17:280      18:79       20:58       23:3158     24:2612   
  25:4        27:2514     31:2826     32:101      35:46       36:937    
  37:3228     38:1806     39:310      40:132      41:3292     42:879    
  43:2110     44:186      45:12683    46:3247     47:262      49:1423   
  50:1136     51:344      52:1128     54:275      55:688      56:6      
  57:47       58:1881     59:1117     60:664      61:2204     62:2125   
  63:1925     64:5000     65:2300     66:4810     67:2824     68:1224   
  69:3808     70:1394     71:672      72:2754     74:2691     75:1435   
  76:666      77:2538     78:1973     79:2311     80:1797     81:1540   
  82:1190     83:987      84:1216     85:2551     86:584      87:1652   
  88:1062     89:2665     90:264      91:7446     92:1455     93:2448   
  94:2593     95:3700     96:1006     97:339      98:963      99:963    
 100:85      101:1095    102:721     103:22852   104:3609    105:374    
 106:848     107:1856    108:694     109:3620    110:1767    111:1933   
 112:1544    113:1394    114:1466    115:1840    116:1808    117:1998   
 118:2098    119:1678    120:886     121:1034    122:2367    123:1876   
 124:1545    125:2018    128:1378    129:909     130:584     131:1852   
 132:776     133:297     134:1275    135:274     136:594     137:852    
 138:2186    139:979     140:603     141:858     142:822     143:1113   
 144:939     145:291     146:1439    147:1012    148:1887    149:1036   
 150:808     151:1250    152:1457    153:368     154:4624    155:886    
 156:3079    157:1081    158:695     159:1941    160:1678    161:1057   
 162:3029    163:872     164:1361    165:1219    166:536     167:1455   
 168:3574    169:494     170:4196    171:732     172:1856    173:2346   
 174:1042    175:1006    176:2692    177:4136    178:2829    179:1424   
 180:2177    181:2374    182:2821    183:1117    184:2398    185:15862  
 186:3879    187:2555    188:3479    189:2072    190:8290    191:1464   
 192:10170   193:7281    194:5903    195:4246    196:3337    197:1855   
 198:6065    199:5924    200:7162    201:5162    202:10423   203:10232  
 204:4560    205:3072    206:3258    207:3245    208:4005    209:4335   
 210:3992    211:1989    212:3289    213:2994    214:1144    215:53     
 216:5912    217:2298    218:894     219:604     220:1972    221:931    
 222:1012    223:1366   

End of report