[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Mar 27 18:03:31 UTC 2020


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 at lists.apnic.net

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

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

Routing Table Report   04:00 +10GMT Sat 28 Mar, 2020

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

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

BGP routing table entries examined:                              803074
    Prefixes after maximum aggregation (per Origin AS):          305037
    Deaggregation factor:                                          2.63
    Unique aggregates announced (without unneeded subnets):      392214
Total ASes present in the Internet Routing Table:                 67512
    Prefixes per ASN:                                             11.90
Origin-only ASes present in the Internet Routing Table:           57966
Origin ASes announcing only one prefix:                           24257
Transit ASes present in the Internet Routing Table:                9546
Transit-only ASes present in the Internet Routing Table:            289
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                      36
    Max AS path prepend of ASN ( 27978)                              31
Prefixes from unregistered ASNs in the Routing Table:              1171
    Number of instances of unregistered ASNs:                      1171
Number of 32-bit ASNs allocated by the RIRs:                      31102
Number of 32-bit ASNs visible in the Routing Table:               25633
Prefixes from 32-bit ASNs in the Routing Table:                  118076
Number of bogon 32-bit ASNs visible in the Routing Table:            14
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:           1126
Number of addresses announced to Internet:                   2854339968
    Equivalent to 170 /8s, 33 /16s and 197 /24s
    Percentage of available address space announced:               77.1
    Percentage of allocated address space announced:               77.1
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               99.5
Total number of prefixes smaller than registry allocations:      269779

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

Prefixes being announced by APNIC Region ASes:                   212013
    Total APNIC prefixes after maximum aggregation:               61779
    APNIC Deaggregation factor:                                    3.43
Prefixes being announced from the APNIC address blocks:          204983
    Unique aggregates announced from the APNIC address blocks:    85602
APNIC Region origin ASes present in the Internet Routing Table:   10467
    APNIC Prefixes per ASN:                                       19.58
APNIC Region origin ASes announcing only one prefix:               2900
APNIC Region transit ASes present in the Internet Routing Table:   1552
Average APNIC Region AS path length visible:                        4.6
    Max APNIC Region AS path length visible:                         35
Number of APNIC region 32-bit ASNs visible in the Routing Table:   5536
Number of APNIC addresses announced to Internet:              766826752
    Equivalent to 45 /8s, 180 /16s and 217 /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:                    235108
    Total ARIN prefixes after maximum aggregation:               108090
    ARIN Deaggregation factor:                                     2.18
Prefixes being announced from the ARIN address blocks:           232402
    Unique aggregates announced from the ARIN address blocks:    117984
ARIN Region origin ASes present in the Internet Routing Table:    18412
    ARIN Prefixes per ASN:                                        12.62
ARIN Region origin ASes announcing only one prefix:                6718
ARIN Region transit ASes present in the Internet Routing Table:    1909
Average ARIN Region AS path length visible:                         3.9
    Max ARIN Region AS path length visible:                          22
Number of ARIN region 32-bit ASNs visible in the Routing Table:    3191
Number of ARIN addresses announced to Internet:              1078735104
    Equivalent to 64 /8s, 76 /16s and 49 /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:                    227443
    Total RIPE prefixes after maximum aggregation:               105367
    RIPE Deaggregation factor:                                     2.16
Prefixes being announced from the RIPE address blocks:           224439
    Unique aggregates announced from the RIPE address blocks:    131651
RIPE Region origin ASes present in the Internet Routing Table:    26962
    RIPE Prefixes per ASN:                                         8.32
RIPE Region origin ASes announcing only one prefix:               11732
RIPE Region transit ASes present in the Internet Routing Table:    3843
Average RIPE Region AS path length visible:                         4.4
    Max RIPE Region AS path length visible:                          29
Number of RIPE region 32-bit ASNs visible in the Routing Table:    9036
Number of RIPE addresses announced to Internet:               724648320
    Equivalent to 43 /8s, 49 /16s and 65 /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:                  105103
    Total LACNIC prefixes after maximum aggregation:              24399
    LACNIC Deaggregation factor:                                   4.31
Prefixes being announced from the LACNIC address blocks:         106407
    Unique aggregates announced from the LACNIC address blocks:   46112
LACNIC Region origin ASes present in the Internet Routing Table:   9625
    LACNIC Prefixes per ASN:                                      11.06
LACNIC Region origin ASes announcing only one prefix:              2420
LACNIC Region transit ASes present in the Internet Routing Table:  1809
Average LACNIC Region AS path length visible:                       5.4
    Max LACNIC Region AS path length visible:                        36
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  7200
Number of LACNIC addresses announced to Internet:             174138880
    Equivalent to 10 /8s, 97 /16s and 38 /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:                  22235
    Total AfriNIC prefixes after maximum aggregation:              4660
    AfriNIC Deaggregation factor:                                  4.77
Prefixes being announced from the AfriNIC address blocks:         33717
    Unique aggregates announced from the AfriNIC address blocks:   9873
AfriNIC Region origin ASes present in the Internet Routing Table:  1380
    AfriNIC Prefixes per ASN:                                     24.43
AfriNIC Region origin ASes announcing only one prefix:              487
AfriNIC Region transit ASes present in the Internet Routing Table:  272
Average AfriNIC Region AS path length visible:                      5.2
    Max AfriNIC Region AS path length visible:                       26
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  670
Number of AfriNIC addresses announced to Internet:            109401856
    Equivalent to 6 /8s, 133 /16s and 87 /24s
AfriNIC AS Blocks      36864-37887, 327680-329727 & 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        5362        672     628  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4625       4192      73  ERX-CERNET-BKB China Education and Rese
  7552        3404       1331      24  VIETEL-AS-AP Viettel Group, VN
 45899        3140       1799     107  VNPT-AS-VN VNPT Corp, VN
  7713        2707        831     505  TELKOMNET-AS-AP PT Telekomunikasi Indon
  9808        2556       9043      61  CMNET-GD Guangdong Mobile Communication
  4766        2294      11102     561  KIXS-AS-KR Korea Telecom, KR
  9498        2258        434     222  BBIL-AP BHARTI Airtel Ltd., IN
  4755        2137        441     193  TATACOMM-AS TATA Communications formerl
  9394        2032       4898      24  CTTNET China TieTong Telecommunications

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
 11492        4080        272     631  CABLEONE, US
  7155        4034        280      28  VIASAT-SP-BACKBONE, US
 16509        3955       7824    1740  AMAZON-02, US
 22773        3538       2969     152  ASN-CXA-ALL-CCI-22773-RDC, US
  6327        3363       1324      92  SHAW, CA
 16625        2991       1568    2135  AKAMAI-AS, US
   209        2383       5076     534  CENTURYLINK-US-LEGACY-QWEST, US
 30036        2327        359     114  MEDIACOM-ENTERPRISE-BUSINESS, US
  5650        2302       2981    1623  FRONTIER-FRTR, US
 26484        2181        136     172  IKGUL-26484, 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        5889       1603     132  UNI2-AS, ES
 31334        4122        484      13  KABELDEUTSCHLAND-AS, DE
 39891        3658        201      23  ALJAWWALSTC-AS, SA
  8551        3101        379      45  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 20940        2936        462    2013  AKAMAI-ASN1, US
 12389        2495       2250     728  ROSTELECOM-AS, RU
  9009        2092        220    1137  M247, GB
 34984        2069        349     563  TELLCOM-AS, TR
  9121        1861       1691      18  TTNET, TR
 13188        1605        100      43  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        6351       3307     600  Uninet S.A. de C.V., MX
 10620        3363        532     476  Telmex Colombia S.A., CO
 11830        2671        369      63  Instituto Costarricense de Electricidad
  6503        1651        327     395  Axtel, S.A.B. de C.V., MX
  7303        1556       1032     260  Telecom Argentina S.A., AR
 28573        1357       2240     210  CLARO S.A., BR
 13999        1265        477     299  Mega Cable, S.A. de C.V., MX
  6147        1129        378      52  Telefonica del Peru S.A.A., PE
  3816        1094        568     148  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
 11172         956        112      71  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        1481        393      22  LINKdotNET-AS, EG
 24835        1111        570      24  RAYA-AS, EG
 36992        1084       1537      74  ETISALAT-MISR, EG
 36903         890        467      88  MT-MPLS, MA
  6713         591       1863      34  IAM-AS, MA
 29571         591         68      11  ORANGE-COTE-IVOIRE, CI
 37342         482         32       1  MOVITEL, MZ
 36935         385        522      40  Vodafone-, EG
 23889         379        231      15  MauritiusTelecom, MU
 15399         356         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        6351       3307     600  Uninet S.A. de C.V., MX
 12479        5889       1603     132  UNI2-AS, ES
  7545        5362        672     628  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4625       4192      73  ERX-CERNET-BKB China Education and Rese
 31334        4122        484      13  KABELDEUTSCHLAND-AS, DE
 11492        4080        272     631  CABLEONE, US
  7155        4034        280      28  VIASAT-SP-BACKBONE, US
 16509        3955       7824    1740  AMAZON-02, US
 39891        3658        201      23  ALJAWWALSTC-AS, SA
 22773        3538       2969     152  ASN-CXA-ALL-CCI-22773-RDC, US

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        5889         5757  UNI2-AS, ES
  7545        5362         4734  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4625         4552  ERX-CERNET-BKB China Education and Research Net
 31334        4122         4109  KABELDEUTSCHLAND-AS, DE
  7155        4034         4006  VIASAT-SP-BACKBONE, US
 39891        3658         3635  ALJAWWALSTC-AS, SA
 11492        4080         3449  CABLEONE, US
 22773        3538         3386  ASN-CXA-ALL-CCI-22773-RDC, US
  7552        3404         3380  VIETEL-AS-AP Viettel Group, VN
  6327        3363         3271  SHAW, CA

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, US
    393266  UNALLOCATED  8.23.52.0/24               174  COGENT-174, US
     62485  UNALLOCATED  8.23.229.0/24             3356  LEVEL3, US
     32985  UNALLOCATED  8.28.31.0/24              3356  LEVEL3, US
    394936  UNALLOCATED  8.33.224.0/24              174  COGENT-174, US
     27205  UNALLOCATED  8.38.16.0/21              6461  ZAYO-6461, US
     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, US
     23061  UNALLOCATED  8.39.119.0/24             3356  LEVEL3, US

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, US

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

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

Unassigned Network     ASN Information  AS Name
23.136.224.0/24      Origin:     15206  UNASSIGNED
                    Transit:       174  COGENT-174, US
23.137.192.0/24      Origin:     31798  CANAD-86-31798, CA
                    Transit:       174  COGENT-174, US
27.100.7.0/24        Origin:     56096  UNASSIGNED
                    Transit:     45455  TH-2S1N-AP Two S One N Co Ltd, Internet 
27.126.156.0/22      Origin:     55827  UNASSIGNED
                    Transit:      9930  TTNET-MY TIME dotCom Berhad, MY
27.126.156.0/23      Origin:     55827  UNASSIGNED
                    Transit:      9930  TTNET-MY TIME dotCom Berhad, MY

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      /10:38      /11:98      /12:285     
/13:578     /14:1162    /15:1908    /16:13376   /17:8139    /18:13804   
/19:25728   /20:40505   /21:47841   /22:99509   /23:81979   /24:466815  
/25:1288    /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        4880        5889  UNI2-AS, ES
 31334        3967        4122  KABELDEUTSCHLAND-AS, DE
 11492        3203        4080  CABLEONE, US
  6327        3152        3363  SHAW, CA
  7155        3125        4034  VIASAT-SP-BACKBONE, US
 39891        2817        3658  ALJAWWALSTC-AS, SA
 22773        2755        3538  ASN-CXA-ALL-CCI-22773-RDC, US
  8551        2560        3101  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
  8151        2153        6351  Uninet S.A. de C.V., MX
 30036        2074        2327  MEDIACOM-ENTERPRISE-BUSINESS, US

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

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

   1:1579      2:1075      3:30        4:19        5:3297      6:51     
   8:1381      9:1        11:1        12:1796     13:501      14:2268   
  15:74       16:9        17:295      18:80       20:78       23:3418   
  24:2280     25:4        27:2541     31:3068     32:105      34:3      
  35:39       36:933      37:3270     38:1926     39:329      40:126    
  41:3497     42:700      43:2114     44:195      45:13954    46:3700   
  47:280      49:1434     50:1217     51:94       52:1127     54:270    
  55:692      56:6        57:48       58:1868     59:1146     60:709    
  61:2224     62:2247     63:1948     64:5063     65:2300     66:4884   
  67:2871     68:1219     69:3827     70:1432     71:677      72:2754   
  74:2610     75:1438     76:671      77:2623     78:1934     79:2390   
  80:1900     81:1578     82:1277     83:1161     84:1204     85:2501   
  86:547      87:1712     88:1097     89:2693     90:312      91:7624   
  92:1495     93:2461     94:2648     95:3785     96:1038     97:339    
  98:966      99:961     100:87      101:1112    102:859     103:23423  
 104:3402    105:423     106:846     107:1951    108:705     109:3623   
 110:1802    111:2052    112:1600    113:1401    114:1546    115:1867   
 116:1798    117:2092    118:2156    119:1698    120:839     121:1043   
 122:2424    123:1969    124:1557    125:2041    128:1333    129:904    
 130:630     131:1813    132:760     133:301     134:1227    135:275    
 136:608     137:838     138:2174    139:991     140:604     141:925    
 142:893     143:1215    144:982     145:330     146:1478    147:1020   
 148:2060    149:1151    150:809     151:1288    152:1486    153:376    
 154:4746    155:912     156:3405    157:1099    158:800     159:1947   
 160:1906    161:1024    162:3050    163:792     164:1470    165:1253   
 166:547     167:1625    168:3714    169:509     170:4312    171:769    
 172:1906    173:2405    174:1034    175:1018    176:2710    177:4201   
 178:2989    179:1502    180:2155    181:2452    182:3111    183:1119   
 184:2412    185:16269   186:3766    187:2627    188:4131    189:2219   
 190:8627    191:1450    192:10277   193:7428    194:6095    195:4325   
 196:3535    197:1923    198:6115    199:5933    200:7202    201:5144   
 202:10518   203:10141   204:4566    205:3087    206:3235    207:3301   
 208:4038    209:4420    210:4014    211:1989    212:3251    213:3061   
 214:1174    215:54      216:5913    217:2391    218:876     219:602    
 220:1994    221:904     222:993     223:1507   

End of report


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