[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Apr 9 18:02:40 UTC 2021


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 10 Apr, 2021

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

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

BGP routing table entries examined:                              855145
    Prefixes after maximum aggregation (per Origin AS):          324141
    Deaggregation factor:                                          2.64
    Unique aggregates announced (without unneeded subnets):      406808
Total ASes present in the Internet Routing Table:                 71034
    Prefixes per ASN:                                             12.04
Origin-only ASes present in the Internet Routing Table:           61106
Origin ASes announcing only one prefix:                           25216
Transit ASes present in the Internet Routing Table:                9928
Transit-only ASes present in the Internet Routing Table:            307
Average AS path length visible in the Internet Routing Table:       4.4
    Max AS path length visible:                                      38
    Max AS path prepend of ASN ( 37385)                              33
Prefixes from unregistered ASNs in the Routing Table:              1015
    Number of instances of unregistered ASNs:                      1021
Number of 32-bit ASNs allocated by the RIRs:                      35637
Number of 32-bit ASNs visible in the Routing Table:               29671
Prefixes from 32-bit ASNs in the Routing Table:                  138154
Number of bogon 32-bit ASNs visible in the Routing Table:            21
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            530
Number of addresses announced to Internet:                   2955025792
    Equivalent to 176 /8s, 34 /16s and 29 /24s
    Percentage of available address space announced:               79.8
    Percentage of allocated address space announced:               79.8
    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:      290123

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

Prefixes being announced by APNIC Region ASes:                   226451
    Total APNIC prefixes after maximum aggregation:               65430
    APNIC Deaggregation factor:                                    3.46
Prefixes being announced from the APNIC address blocks:          222562
    Unique aggregates announced from the APNIC address blocks:    89330
APNIC Region origin ASes present in the Internet Routing Table:   11459
    APNIC Prefixes per ASN:                                       19.42
APNIC Region origin ASes announcing only one prefix:               3264
APNIC Region transit ASes present in the Internet Routing Table:   1624
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         30
Number of APNIC region 32-bit ASNs visible in the Routing Table:   6613
Number of APNIC addresses announced to Internet:              772040448
    Equivalent to 46 /8s, 4 /16s and 103 /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, 131072-143673
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:                    245433
    Total ARIN prefixes after maximum aggregation:               112906
    ARIN Deaggregation factor:                                     2.17
Prefixes being announced from the ARIN address blocks:           245868
    Unique aggregates announced from the ARIN address blocks:    117633
ARIN Region origin ASes present in the Internet Routing Table:    18781
    ARIN Prefixes per ASN:                                        13.09
ARIN Region origin ASes announcing only one prefix:                6810
ARIN Region transit ASes present in the Internet Routing Table:    1947
Average ARIN Region AS path length visible:                         3.9
    Max ARIN Region AS path length visible:                          30
Number of ARIN region 32-bit ASNs visible in the Routing Table:    3816
Number of ARIN addresses announced to Internet:              1189315840
    Equivalent to 70 /8s, 227 /16s and 133 /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, 393216-401308
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:                    243686
    Total RIPE prefixes after maximum aggregation:               113656
    RIPE Deaggregation factor:                                     2.14
Prefixes being announced from the RIPE address blocks:           239659
    Unique aggregates announced from the RIPE address blocks:    141179
RIPE Region origin ASes present in the Internet Routing Table:    27870
    RIPE Prefixes per ASN:                                         8.60
RIPE Region origin ASes announcing only one prefix:               11972
RIPE Region transit ASes present in the Internet Routing Table:    3881
Average RIPE Region AS path length visible:                         4.3
    Max RIPE Region AS path length visible:                          38
Number of RIPE region 32-bit ASNs visible in the Routing Table:   10094
Number of RIPE addresses announced to Internet:               710577792
    Equivalent to 42 /8s, 90 /16s and 142 /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
                       196608-213403
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:                  112832
    Total LACNIC prefixes after maximum aggregation:              26497
    LACNIC Deaggregation factor:                                   4.26
Prefixes being announced from the LACNIC address blocks:         113977
    Unique aggregates announced from the LACNIC address blocks:   48238
LACNIC Region origin ASes present in the Internet Routing Table:  10748
    LACNIC Prefixes per ASN:                                      10.60
LACNIC Region origin ASes announcing only one prefix:              2673
LACNIC Region transit ASes present in the Internet Routing Table:  2015
Average LACNIC Region AS path length visible:                       4.9
    Max LACNIC Region AS path length visible:                        33
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  8356
Number of LACNIC addresses announced to Internet:             174957312
    Equivalent to 10 /8s, 109 /16s and 163 /24s
LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 64099-64197, 262144-272796 + 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:                  25727
    Total AfriNIC prefixes after maximum aggregation:              4898
    AfriNIC Deaggregation factor:                                  5.25
Prefixes being announced from the AfriNIC address blocks:         32549
    Unique aggregates announced from the AfriNIC address blocks:   9949
AfriNIC Region origin ASes present in the Internet Routing Table:  1450
    AfriNIC Prefixes per ASN:                                     22.45
AfriNIC Region origin ASes announcing only one prefix:              497
AfriNIC Region transit ASes present in the Internet Routing Table:  294
Average AfriNIC Region AS path length visible:                      5.1
    Max AfriNIC Region AS path length visible:                       38
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  792
Number of AfriNIC addresses announced to Internet:            107705088
    Equivalent to 6 /8s, 107 /16s and 115 /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
  9808        6279       8996      55  CMNET-GD Guangdong Mobile Communication
  7545        5719        783     675  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4752       4192      74  ERX-CERNET-BKB China Education and Rese
  7713        3524       1022      55  TELKOMNET-AS-AP PT Telekomunikasi Indon
  7552        3489       1330      21  VIETEL-AS-AP Viettel Group, VN
 45899        2912       1896      54  VNPT-AS-VN VNPT Corp, VN
  4766        2435      11104     565  KIXS-AS-KR Korea Telecom, KR
  9498        2321        482     232  BBIL-AP BHARTI Airtel Ltd., IN
  4755        2120        441     190  TATACOMM-AS TATA Communications formerl
 45090        2098       1197      72  CNNIC-TENCENT-NET-AP Shenzhen Tencent C

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
 16509        4960       9264    2226  AMAZON-02, US
 11492        4753        315     712  CABLEONE, US
  7155        4030        264      32  VIASAT-SP-BACKBONE, US
 22773        3914       2998     246  ASN-CXA-ALL-CCI-22773-RDC, US
 16625        3362       1744    2403  AKAMAI-AS, US
  6327        3358       1317      70  SHAW, CA
 30036        2533        370     206  MEDIACOM-ENTERPRISE-BUSINESS, US
   209        2527       5053     485  CENTURYLINK-US-LEGACY-QWEST, US
  5650        2335       2996    1636  FRONTIER-FRTR, US
  5972        2222        448     787  DNIC-ASBLK-05800-06055, 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
 47331        7756       1043    3490  TTNET, TR
 12479        6393       1700     139  UNI2-AS, ES
 20940        3575       3347     201  AKAMAI-ASN1, NL
  8551        3280        379      41  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 39891        3266        187      22  ALJAWWALSTC-AS, SA
 12389        2902       2284     899  ROSTELECOM-AS, RU
  9009        2378        246    1278  M247, GB
 34984        2215        357     587  TELLCOM-AS, TR
 13188        1610        100      31  TRIOLAN, UA
 58224        1569        881     576  TCI, IR

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        8484       3472     569  Uninet S.A. de C.V., MX
 10620        3409        527     603  Telmex Colombia S.A., CO
 11830        2552        369      63  Instituto Costarricense de Electricidad
  7303        1862       1725     295  Telecom Argentina S.A., AR
 13999        1659        447     428  Mega Cable, S.A. de C.V., MX
  6503        1443        311     475  Axtel, S.A.B. de C.V., MX
 28573        1366       2271     223  CLARO S.A., BR
  3816        1223        638     157  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
  6147        1128        377      39  Telefonica del Peru S.A.A., PE
 11664        1004        212     402  Techtel LMDS Comunicaciones Interactiva

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        1542        393      22  LINKdotNET-AS, EG
 24835        1443        486      27  RAYA-AS, EG
 36992        1195       1537     174  ETISALAT-MISR, EG
 36903        1189        530     107  MT-MPLS, MA
 29571         711         68      11  ORANGE-COTE-IVOIRE, CI
  6713         546       1863      34  IAM-AS, MA
 36935         514        522      40  Vodafone-, EG
 37342         487         32       1  MOVITEL, MZ
 15399         477         47      17  WANANCHI-, KE
 23889         439        232      16  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        8484       3472     569  Uninet S.A. de C.V., MX
 47331        7756       1043    3490  TTNET, TR
 12479        6393       1700     139  UNI2-AS, ES
  9808        6279       8996      55  CMNET-GD Guangdong Mobile Communication
  7545        5719        783     675  TPG-INTERNET-AP TPG Telecom Limited, AU
 16509        4960       9264    2226  AMAZON-02, US
 11492        4753        315     712  CABLEONE, US
  4538        4752       4192      74  ERX-CERNET-BKB China Education and Rese
  7155        4030        264      32  VIASAT-SP-BACKBONE, US
 22773        3914       2998     246  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        6393         6254  UNI2-AS, ES
  9808        6279         6224  CMNET-GD Guangdong Mobile Communication Co.Ltd.
  7545        5719         5044  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4752         4678  ERX-CERNET-BKB China Education and Research Net
 47331        7756         4266  TTNET, TR
 11492        4753         4041  CABLEONE, US
  7155        4030         3998  VIASAT-SP-BACKBONE, US
 22773        3914         3668  ASN-CXA-ALL-CCI-22773-RDC, US
  7713        3524         3469  TELKOMNET-AS-AP PT Telekomunikasi Indonesia, ID
  7552        3489         3468  VIETEL-AS-AP Viettel Group, VN

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             46887  LIGHTOWER, US
     18604  UNALLOCATED  8.25.204.0/24             3356  LEVEL3, US
    394936  UNALLOCATED  8.33.224.0/24              174  COGENT-174, US
     23061  UNALLOCATED  8.39.119.0/24             3356  LEVEL3, US
    395438  UNALLOCATED  8.42.206.0/24             3356  LEVEL3, US
     46766  UNALLOCATED  8.44.208.0/24             3356  LEVEL3, US
     40544  UNALLOCATED  12.0.33.0/24              6461  ZAYO-6461, US
     46505  UNALLOCATED  12.7.131.0/24             7018  ATT-INTERNET4, US
     15132  UNALLOCATED  12.9.150.0/24             1239  SPRINTLINK, 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
23.141.0.0/24        Origin:    395350  UNASSIGNED
                    Transit:     11426  TWC-11426-CAROLINAS, US
23.142.80.0/24       Origin:    397881  STINGERS, US
                    Transit:    398481  REDMERCURY, 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 No. 14, Jala
27.126.156.0/23      Origin:     55827  UNASSIGNED
                    Transit:      9930  TTNET-MY TIME dotCom Berhad No. 14, Jala

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        /8:13       /9:12      /10:40      /11:102     /12:293     
/13:584     /14:1187    /15:1945    /16:13528   /17:8326    /18:13861   
/19:25845   /20:42465   /21:51406   /22:106450  /23:90910   /24:496778  
/25:1400    /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
 47331        6933        7756  TTNET, TR
 12479        5350        6393  UNI2-AS, ES
 11492        3807        4753  CABLEONE, US
  6327        3165        3358  SHAW, CA
  7155        3118        4030  VIASAT-SP-BACKBONE, US
  8151        3057        8484  Uninet S.A. de C.V., MX
 22773        2955        3914  ASN-CXA-ALL-CCI-22773-RDC, US
 39891        2801        3266  ALJAWWALSTC-AS, SA
  8551        2744        3280  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 30036        2218        2533  MEDIACOM-ENTERPRISE-BUSINESS, US

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

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

   1:1879      2:1111      3:105       4:19        5:3556      6:63     
   7:5         8:1506      9:1        11:36       12:1748     13:360    
  14:2302     15:73       16:15       17:317      18:93       20:128    
  22:188      23:4622     24:2400     25:2        27:2497     29:19     
  31:2309     32:113      34:2        35:40       36:1303     37:3759   
  38:2062     39:608      40:161      41:3846     42:924      43:2118   
  44:237      45:14937    46:3699     47:320      49:1609     50:1753   
  51:92       52:1211     54:218      55:737      56:8        57:57     
  58:1728     59:1200     60:887      61:2390     62:2194     63:1961   
  64:5283     65:2383     66:5143     67:2869     68:1152     69:4048   
  70:1397     71:689      72:3180     74:2580     75:1483     76:682    
  77:2026     78:3675     79:2445     80:1864     81:1632     82:1342   
  83:1119     84:1256     85:3343     86:707      87:1775     88:2701   
  89:3024     90:430      91:7298     92:1741     93:2538     94:3089   
  95:4409     96:1256     97:345      98:984      99:970     100:90     
 101:1047    102:1362    103:25811   104:3702    105:436     106:728    
 107:2239    108:707     109:3994    110:2011    111:2942    112:1973   
 113:1616    114:1465    115:1874    116:1894    117:2307    118:2339   
 119:1884    120:1105    121:1083    122:2266    123:2213    124:1574   
 125:2094    128:1364    129:955     130:834     131:2035    132:761    
 133:355     134:1604    135:289     136:745     137:921     138:2300   
 139:1186    140:742     141:1186    142:1118    143:1260    144:1254   
 145:331     146:1392    147:1296    148:2210    149:1446    150:799    
 151:1080    152:1553    153:394     154:2315    155:1330    156:1487   
 157:1171    158:926     159:2018    160:2089    161:1129    162:3272   
 163:974     164:1498    165:1332    166:593     167:1776    168:3573   
 169:664     170:4251    171:767     172:2124    173:2935    174:969    
 175:1087    176:3110    177:4334    178:2894    179:1953    180:2309   
 181:2553    182:3216    183:1813    184:2412    185:18143   186:4197   
 187:3170    188:3283    189:2820    190:8861    191:1470    192:10657  
 193:7986    194:6579    195:4712    196:2901    197:2369    198:6042   
 199:6028    200:7422    201:5344    202:10598   203:10057   204:4657   
 205:3331    206:3528    207:3364    208:4008    209:4654    210:4254   
 211:2192    212:3694    213:3302    214:1220    215:61      216:6180   
 217:2524    218:1158    219:703     220:2082    221:973     222:978    
 223:1850   

End of report


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