[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Jan 15 18:03:28 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 16 Jan, 2021

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

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

BGP routing table entries examined:                              836570
    Prefixes after maximum aggregation (per Origin AS):          320991
    Deaggregation factor:                                          2.61
    Unique aggregates announced (without unneeded subnets):      400559
Total ASes present in the Internet Routing Table:                 70300
    Prefixes per ASN:                                             11.90
Origin-only ASes present in the Internet Routing Table:           60483
Origin ASes announcing only one prefix:                           25027
Transit ASes present in the Internet Routing Table:                9817
Transit-only ASes present in the Internet Routing Table:            303
Average AS path length visible in the Internet Routing Table:       4.4
    Max AS path length visible:                                      34
    Max AS path prepend of ASN (135582)                              32
Prefixes from unregistered ASNs in the Routing Table:               888
    Number of instances of unregistered ASNs:                       890
Number of 32-bit ASNs allocated by the RIRs:                      34690
Number of 32-bit ASNs visible in the Routing Table:               28828
Prefixes from 32-bit ASNs in the Routing Table:                  133357
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:            441
Number of addresses announced to Internet:                   2864864896
    Equivalent to 170 /8s, 194 /16s and 94 /24s
    Percentage of available address space announced:               77.4
    Percentage of allocated address space announced:               77.4
    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:      284676

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

Prefixes being announced by APNIC Region ASes:                   219462
    Total APNIC prefixes after maximum aggregation:               65065
    APNIC Deaggregation factor:                                    3.37
Prefixes being announced from the APNIC address blocks:          215317
    Unique aggregates announced from the APNIC address blocks:    88009
APNIC Region origin ASes present in the Internet Routing Table:   11211
    APNIC Prefixes per ASN:                                       19.21
APNIC Region origin ASes announcing only one prefix:               3205
APNIC Region transit ASes present in the Internet Routing Table:   1599
Average APNIC Region AS path length visible:                        4.7
    Max APNIC Region AS path length visible:                         34
Number of APNIC region 32-bit ASNs visible in the Routing Table:   6352
Number of APNIC addresses announced to Internet:              778254080
    Equivalent to 46 /8s, 99 /16s and 55 /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:                    241554
    Total ARIN prefixes after maximum aggregation:               111774
    ARIN Deaggregation factor:                                     2.16
Prefixes being announced from the ARIN address blocks:           242098
    Unique aggregates announced from the ARIN address blocks:    115757
ARIN Region origin ASes present in the Internet Routing Table:    18692
    ARIN Prefixes per ASN:                                        12.95
ARIN Region origin ASes announcing only one prefix:                6808
ARIN Region transit ASes present in the Internet Routing Table:    1922
Average ARIN Region AS path length visible:                         3.9
    Max ARIN Region AS path length visible:                          25
Number of ARIN region 32-bit ASNs visible in the Routing Table:    3670
Number of ARIN addresses announced to Internet:              1094071552
    Equivalent to 65 /8s, 54 /16s and 53 /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:                    238379
    Total RIPE prefixes after maximum aggregation:               112317
    RIPE Deaggregation factor:                                     2.12
Prefixes being announced from the RIPE address blocks:           234319
    Unique aggregates announced from the RIPE address blocks:    138091
RIPE Region origin ASes present in the Internet Routing Table:    27639
    RIPE Prefixes per ASN:                                         8.48
RIPE Region origin ASes announcing only one prefix:               11892
RIPE Region transit ASes present in the Internet Routing Table:    3879
Average RIPE Region AS path length visible:                         4.4
    Max RIPE Region AS path length visible:                          30
Number of RIPE region 32-bit ASNs visible in the Routing Table:    9831
Number of RIPE addresses announced to Internet:               709928320
    Equivalent to 42 /8s, 80 /16s and 165 /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:                  111736
    Total LACNIC prefixes after maximum aggregation:              26259
    LACNIC Deaggregation factor:                                   4.26
Prefixes being announced from the LACNIC address blocks:         112825
    Unique aggregates announced from the LACNIC address blocks:   48039
LACNIC Region origin ASes present in the Internet Routing Table:  10635
    LACNIC Prefixes per ASN:                                      10.61
LACNIC Region origin ASes announcing only one prefix:              2640
LACNIC Region transit ASes present in the Internet Routing Table:  1981
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:  8232
Number of LACNIC addresses announced to Internet:             174115328
    Equivalent to 10 /8s, 96 /16s and 202 /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:                  24549
    Total AfriNIC prefixes after maximum aggregation:              4849
    AfriNIC Deaggregation factor:                                  5.06
Prefixes being announced from the AfriNIC address blocks:         31570
    Unique aggregates announced from the AfriNIC address blocks:  10266
AfriNIC Region origin ASes present in the Internet Routing Table:  1412
    AfriNIC Prefixes per ASN:                                     22.36
AfriNIC Region origin ASes announcing only one prefix:              481
AfriNIC Region transit ASes present in the Internet Routing Table:  283
Average AfriNIC Region AS path length visible:                      5.2
    Max AfriNIC Region AS path length visible:                       29
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  743
Number of AfriNIC addresses announced to Internet:            108124416
    Equivalent to 6 /8s, 113 /16s and 217 /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        5689        777     661  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4736       4192      74  ERX-CERNET-BKB China Education and Rese
  7552        3538       1330      19  VIETEL-AS-AP Viettel Group, VN
  7713        3235        952     519  TELKOMNET-AS-AP PT Telekomunikasi Indon
 45899        2865       1896      55  VNPT-AS-VN VNPT Corp, VN
  9808        2779       9044      57  CMNET-GD Guangdong Mobile Communication
  4766        2440      11104     567  KIXS-AS-KR Korea Telecom, KR
  9498        2303        482     231  BBIL-AP BHARTI Airtel Ltd., IN
  4755        2132        441     190  TATACOMM-AS TATA Communications formerl
 45090        2076       1045      64  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
 11492        4752        315     733  CABLEONE, US
 16509        4647       9079    2129  AMAZON-02, US
  7155        4037        264      32  VIASAT-SP-BACKBONE, US
 22773        3816       3016     227  ASN-CXA-ALL-CCI-22773-RDC, US
  6327        3348       1319      82  SHAW, CA
 16625        3199       1674    2298  AKAMAI-AS, US
   209        2522       5058     508  CENTURYLINK-US-LEGACY-QWEST, US
 30036        2497        370      95  MEDIACOM-ENTERPRISE-BUSINESS, US
  5650        2353       3000    1641  FRONTIER-FRTR, US
 20115        2168       2902     511  CHARTER-20115, 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        6288        867    3615  TTNET, TR
 12479        6225       1667     141  UNI2-AS, ES
 39891        3459        195      22  ALJAWWALSTC-AS, SA
 20940        3390       3359     186  AKAMAI-ASN1, NL
  8551        3140        379      45  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 12389        2875       2280     884  ROSTELECOM-AS, RU
  9009        2289        232    1239  M247, GB
 34984        2176        354     579  TELLCOM-AS, TR
 13188        1611        100      23  TRIOLAN, UA
 58224        1497        860     547  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        8129       3400     589  Uninet S.A. de C.V., MX
 10620        3388        526     603  Telmex Colombia S.A., CO
 11830        2560        369      63  Instituto Costarricense de Electricidad
 13999        1611        432     414  Mega Cable, S.A. de C.V., MX
  6503        1438        311     475  Axtel, S.A.B. de C.V., MX
  7303        1437        910     260  Telecom Argentina S.A., AR
 28573        1372       2258     218  CLARO S.A., BR
  6147        1148        379      39  Telefonica del Peru S.A.A., PE
  3816        1118        539     147  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
 11664         997        211     414  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        1586        393      21  LINKdotNET-AS, EG
 24835        1274        472      29  RAYA-AS, EG
 36992        1186       1533     166  ETISALAT-MISR, EG
 36903         979        511     102  MT-MPLS, MA
 29571         701         68      11  ORANGE-COTE-IVOIRE, CI
  6713         533       1863      34  IAM-AS, MA
 37342         486         32       1  MOVITEL, MZ
 36935         457        522      40  Vodafone-, EG
 23889         454        232      16  MauritiusTelecom, MU
 15399         428         46      15  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        8129       3400     589  Uninet S.A. de C.V., MX
 47331        6288        867    3615  TTNET, TR
 12479        6225       1667     141  UNI2-AS, ES
  7545        5689        777     661  TPG-INTERNET-AP TPG Telecom Limited, AU
 11492        4752        315     733  CABLEONE, US
  4538        4736       4192      74  ERX-CERNET-BKB China Education and Rese
 16509        4647       9079    2129  AMAZON-02, US
  7155        4037        264      32  VIASAT-SP-BACKBONE, US
 22773        3816       3016     227  ASN-CXA-ALL-CCI-22773-RDC, US
  7552        3538       1330      19  VIETEL-AS-AP Viettel Group, VN

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        6225         6084  UNI2-AS, ES
  7545        5689         5028  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4736         4662  ERX-CERNET-BKB China Education and Research Net
 11492        4752         4019  CABLEONE, US
  7155        4037         4005  VIASAT-SP-BACKBONE, US
 22773        3816         3589  ASN-CXA-ALL-CCI-22773-RDC, US
  7552        3538         3519  VIETEL-AS-AP Viettel Group, VN
 39891        3459         3437  ALJAWWALSTC-AS, SA
  6327        3348         3266  SHAW, CA
 20940        3390         3204  AKAMAI-ASN1, NL

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
     18604  UNALLOCATED  8.25.204.0/24             3356  LEVEL3, US
     32985  UNALLOCATED  8.28.31.0/24              3356  LEVEL3, US
    394936  UNALLOCATED  8.33.224.0/24              174  COGENT-174, US
    393579  UNALLOCATED  8.38.98.0/24              3356  LEVEL3, 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

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
23.133.192.0/24      Origin:     16734  UNASSIGNED
                    Transit:    266201  RNV CORP EIRELI, BR
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

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        /8:8        /9:13      /10:40      /11:101     /12:292     
/13:579     /14:1175    /15:1926    /16:13478   /17:8260    /18:13711   
/19:25618   /20:41481   /21:50513   /22:103946  /23:88324   /24:485818  
/25:1287    /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        5573        6288  TTNET, TR
 12479        5203        6225  UNI2-AS, ES
 11492        3821        4752  CABLEONE, US
  6327        3144        3348  SHAW, CA
  7155        3125        4037  VIASAT-SP-BACKBONE, US
 22773        2896        3816  ASN-CXA-ALL-CCI-22773-RDC, US
 39891        2801        3459  ALJAWWALSTC-AS, SA
  8151        2747        8129  Uninet S.A. de C.V., MX
  8551        2601        3140  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 30036        2227        2497  MEDIACOM-ENTERPRISE-BUSINESS, US

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

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

   1:1876      2:1189      3:74        4:19        5:3589      6:65     
   8:1479      9:1        11:1        12:1755     13:348      14:2438   
  15:75       16:14       17:311      18:93       20:113      23:4213   
  24:2363     25:3        27:2347     31:2178     32:111      34:2      
  35:36       36:1144     37:3557     38:2016     39:471      40:150    
  41:3825     42:882      43:2113     44:229      45:14636    46:3606   
  47:318      49:1601     50:1707     51:95       52:1134     54:216    
  55:769      56:6        57:57       58:1691     59:1153     60:817    
  61:2328     62:2197     63:1990     64:5226     65:2383     66:5120   
  67:2946     68:1164     69:4100     70:1400     71:687      72:3103   
  74:2573     75:1469     76:691      77:1996     78:3264     79:2409   
  80:1918     81:1613     82:1312     83:1116     84:1259     85:3108   
  86:623      87:1803     88:2406     89:2886     90:396      91:7221   
  92:1583     93:2553     94:2938     95:4179     96:1234     97:344    
  98:970      99:979     100:89      101:1052    102:1246    103:25201  
 104:3644    105:418     106:718     107:2179    108:697     109:3793   
 110:1988    111:2382    112:1695    113:1619    114:1423    115:1853   
 116:1879    117:2140    118:2307    119:1846    120:938     121:1064   
 122:2310    123:2158    124:1644    125:2151    128:1320    129:1243   
 130:791     131:2013    132:756     133:312     134:1478    135:281    
 136:702     137:834     138:2301    139:1146    140:734     141:1160   
 142:1048    143:1229    144:1216    145:334     146:1387    147:1222   
 148:2140    149:1252    150:759     151:1203    152:1552    153:447    
 154:2147    155:1216    156:1365    157:1156    158:915     159:2043   
 160:2042    161:1062    162:3250    163:935     164:1426    165:1303   
 166:601     167:1747    168:3599    169:640     170:4340    171:758    
 172:2050    173:2922    174:968     175:1056    176:2939    177:4362   
 178:2819    179:1846    180:2275    181:2585    182:3181    183:1575   
 184:2458    185:17676   186:4035    187:2966    188:3274    189:2709   
 190:9057    191:1372    192:10636   193:7880    194:6460    195:4600   
 196:3035    197:2280    198:6003    199:5960    200:7281    201:5281   
 202:10462   203:10075   204:4639    205:3137    206:3393    207:3314   
 208:3995    209:4631    210:4205    211:2136    212:3617    213:3284   
 214:1200    215:61      216:6135    217:2488    218:922     219:647    
 220:2088    221:927     222:986     223:1723   

End of report


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