[cmNOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Ven 4 Dťc 18:03:40 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 05 Dec, 2020

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

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

BGP routing table entries examined:                              832105
    Prefixes after maximum aggregation (per Origin AS):          318553
    Deaggregation factor:                                          2.61
    Unique aggregates announced (without unneeded subnets):      398591
Total ASes present in the Internet Routing Table:                 70047
    Prefixes per ASN:                                             11.88
Origin-only ASes present in the Internet Routing Table:           60215
Origin ASes announcing only one prefix:                           24916
Transit ASes present in the Internet Routing Table:                9832
Transit-only ASes present in the Internet Routing Table:            298
Average AS path length visible in the Internet Routing Table:       4.4
    Max AS path length visible:                                      35
    Max AS path prepend of ASN ( 30873)                              27
Prefixes from unregistered ASNs in the Routing Table:               930
    Number of instances of unregistered ASNs:                       931
Number of 32-bit ASNs allocated by the RIRs:                      34327
Number of 32-bit ASNs visible in the Routing Table:               28445
Prefixes from 32-bit ASNs in the Routing Table:                  130073
Number of bogon 32-bit ASNs visible in the Routing Table:            18
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            458
Number of addresses announced to Internet:                   2864289664
    Equivalent to 170 /8s, 185 /16s and 151 /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:      283123

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

Prefixes being announced by APNIC Region ASes:                   217200
    Total APNIC prefixes after maximum aggregation:               63839
    APNIC Deaggregation factor:                                    3.40
Prefixes being announced from the APNIC address blocks:          213245
    Unique aggregates announced from the APNIC address blocks:    87189
APNIC Region origin ASes present in the Internet Routing Table:   11079
    APNIC Prefixes per ASN:                                       19.25
APNIC Region origin ASes announcing only one prefix:               3152
APNIC Region transit ASes present in the Internet Routing Table:   1604
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         31
Number of APNIC region 32-bit ASNs visible in the Routing Table:   6202
Number of APNIC addresses announced to Internet:              778212608
    Equivalent to 46 /8s, 98 /16s and 149 /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:                    240769
    Total ARIN prefixes after maximum aggregation:               111305
    ARIN Deaggregation factor:                                     2.16
Prefixes being announced from the ARIN address blocks:           240950
    Unique aggregates announced from the ARIN address blocks:    115468
ARIN Region origin ASes present in the Internet Routing Table:    18686
    ARIN Prefixes per ASN:                                        12.89
ARIN Region origin ASes announcing only one prefix:                6788
ARIN Region transit ASes present in the Internet Routing Table:    1914
Average ARIN Region AS path length visible:                         3.8
    Max ARIN Region AS path length visible:                          24
Number of ARIN region 32-bit ASNs visible in the Routing Table:    3582
Number of ARIN addresses announced to Internet:              1093408000
    Equivalent to 65 /8s, 44 /16s and 21 /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:                    236644
    Total RIPE prefixes after maximum aggregation:               111694
    RIPE Deaggregation factor:                                     2.12
Prefixes being announced from the RIPE address blocks:           232642
    Unique aggregates announced from the RIPE address blocks:    137427
RIPE Region origin ASes present in the Internet Routing Table:    27555
    RIPE Prefixes per ASN:                                         8.44
RIPE Region origin ASes announcing only one prefix:               11867
RIPE Region transit ASes present in the Internet Routing Table:    3899
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:    9712
Number of RIPE addresses announced to Internet:               709617024
    Equivalent to 42 /8s, 75 /16s and 229 /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:                  111895
    Total LACNIC prefixes after maximum aggregation:              26217
    LACNIC Deaggregation factor:                                   4.27
Prefixes being announced from the LACNIC address blocks:         112953
    Unique aggregates announced from the LACNIC address blocks:   47861
LACNIC Region origin ASes present in the Internet Routing Table:  10616
    LACNIC Prefixes per ASN:                                      10.64
LACNIC Region origin ASes announcing only one prefix:              2629
LACNIC Region transit ASes present in the Internet Routing Table:  1961
Average LACNIC Region AS path length visible:                       5.0
    Max LACNIC Region AS path length visible:                        35
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  8210
Number of LACNIC addresses announced to Internet:             174095872
    Equivalent to 10 /8s, 96 /16s and 126 /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:                  24665
    Total AfriNIC prefixes after maximum aggregation:              4766
    AfriNIC Deaggregation factor:                                  5.18
Prefixes being announced from the AfriNIC address blocks:         31857
    Unique aggregates announced from the AfriNIC address blocks:  10244
AfriNIC Region origin ASes present in the Internet Routing Table:  1412
    AfriNIC Prefixes per ASN:                                     22.56
AfriNIC Region origin ASes announcing only one prefix:              479
AfriNIC Region transit ASes present in the Internet Routing Table:  286
Average AfriNIC Region AS path length visible:                      5.1
    Max AfriNIC Region AS path length visible:                       29
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  739
Number of AfriNIC addresses announced to Internet:            108610304
    Equivalent to 6 /8s, 121 /16s and 67 /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        5672        777     661  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4748       4192      73  ERX-CERNET-BKB China Education and Rese
  7552        3582       1330      21  VIETEL-AS-AP Viettel Group, VN
 45899        3265       1896      55  VNPT-AS-VN VNPT Corp, VN
  7713        3221        936     520  TELKOMNET-AS-AP PT Telekomunikasi Indon
  9808        2566       9044      57  CMNET-GD Guangdong Mobile Communication
  4766        2354      11103     553  KIXS-AS-KR Korea Telecom, KR
  9498        2295        466     231  BBIL-AP BHARTI Airtel Ltd., IN
  4755        2136        441     189  TATACOMM-AS TATA Communications formerl
 45090        2064       1045      63  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        4780        317     683  CABLEONE, US
 16509        4479       9059    2081  AMAZON-02, US
  7155        4019        264      32  VIASAT-SP-BACKBONE, US
 22773        3736       2994     197  ASN-CXA-ALL-CCI-22773-RDC, US
  6327        3356       1323      82  SHAW, CA
 16625        3127       1647    2251  AKAMAI-AS, US
   209        2495       5059     511  CENTURYLINK-US-LEGACY-QWEST, US
 30036        2485        368     106  MEDIACOM-ENTERPRISE-BUSINESS, US
  5650        2336       2984    1643  FRONTIER-FRTR, US
 20115        2164       2899     504  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        6458        895    3631  TTNET, TR
 12479        6223       1667     141  UNI2-AS, ES
 39891        3459        195      22  ALJAWWALSTC-AS, SA
 20940        3320       3347     200  AKAMAI-ASN1, EU
  8551        3241        378      42  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 12389        2883       2282     891  ROSTELECOM-AS, RU
  9009        2215        229    1205  M247, GB
 34984        2167        351     576  TELLCOM-AS, TR
 13188        1610        100      31  TRIOLAN, UA
 58224        1440        853     541  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        8157       3440     604  Uninet S.A. de C.V., MX
 10620        3396        526     550  Telmex Colombia S.A., CO
 11830        2563        369      63  Instituto Costarricense de Electricidad
 13999        1535        428     409  Mega Cable, S.A. de C.V., MX
  6503        1468        311     475  Axtel, S.A.B. de C.V., MX
  7303        1435        909     262  Telecom Argentina S.A., AR
 28573        1362       2258     225  CLARO S.A., BR
  6147        1148        379      39  Telefonica del Peru S.A.A., PE
  3816        1113        537     151  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
 11664        1006        212     419  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        1567        393      22  LINKdotNET-AS, EG
 24835        1286        476      26  RAYA-AS, EG
 36992        1199       1529     133  ETISALAT-MISR, EG
 36903         950        496      96  MT-MPLS, MA
 29571         705         68      12  ORANGE-COTE-IVOIRE, CI
  6713         532       1863      34  IAM-AS, MA
 15399         488         46      17  WANANCHI-, KE
 37342         478         32       1  MOVITEL, MZ
 36935         455        522      40  Vodafone-, EG
 23889         450        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        8157       3440     604  Uninet S.A. de C.V., MX
 47331        6458        895    3631  TTNET, TR
 12479        6223       1667     141  UNI2-AS, ES
  7545        5672        777     661  TPG-INTERNET-AP TPG Telecom Limited, AU
 11492        4780        317     683  CABLEONE, US
  4538        4748       4192      73  ERX-CERNET-BKB China Education and Rese
 16509        4479       9059    2081  AMAZON-02, US
  7155        4019        264      32  VIASAT-SP-BACKBONE, US
 22773        3736       2994     197  ASN-CXA-ALL-CCI-22773-RDC, US
  7552        3582       1330      21  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        6223         6082  UNI2-AS, ES
  7545        5672         5011  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4748         4675  ERX-CERNET-BKB China Education and Research Net
 11492        4780         4097  CABLEONE, US
  7155        4019         3987  VIASAT-SP-BACKBONE, US
  7552        3582         3561  VIETEL-AS-AP Viettel Group, VN
 22773        3736         3539  ASN-CXA-ALL-CCI-22773-RDC, US
 39891        3459         3437  ALJAWWALSTC-AS, SA
  6327        3356         3274  SHAW, CA
 45899        3265         3210  VNPT-AS-VN VNPT Corp, 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               174  COGENT-174, US
     32985  UNALLOCATED  8.28.31.0/24              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
    393489  UNALLOCATED  12.7.109.0/24             7018  ATT-INTERNET4, US
     46505  UNALLOCATED  12.7.131.0/24             7018  ATT-INTERNET4, 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:    397294  UNASSIGNED
                    Transit:    398559  TUNBROKER, 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        /8:8        /9:13      /10:40      /11:101     /12:292     
/13:578     /14:1175    /15:1932    /16:13464   /17:8246    /18:14065   
/19:25621   /20:41317   /21:50267   /22:103131  /23:87580   /24:483038  
/25:1237    /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        5677        6458  TTNET, TR
 12479        5197        6223  UNI2-AS, ES
 11492        3831        4780  CABLEONE, US
  6327        3152        3356  SHAW, CA
  7155        3108        4019  VIASAT-SP-BACKBONE, US
  8151        2872        8157  Uninet S.A. de C.V., MX
 22773        2865        3736  ASN-CXA-ALL-CCI-22773-RDC, US
 39891        2801        3459  ALJAWWALSTC-AS, SA
  8551        2703        3241  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 30036        2225        2485  MEDIACOM-ENTERPRISE-BUSINESS, US

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

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

   1:1871      2:1162      3:35        4:18        5:3415      6:53     
   8:1492      9:1        11:1        12:1762     13:351      14:2381   
  15:72       16:12       17:304      18:93       20:113      23:4092   
  24:2365     25:3        27:2335     31:2164     32:112      34:1      
  35:35       36:1108     37:3474     38:1991     39:469      40:150    
  41:3831     42:625      43:2109     44:231      45:14609    46:3607   
  47:323      49:1579     50:1674     51:90       52:1127     54:212    
  55:769      56:7        57:55       58:1693     59:1139     60:814    
  61:2310     62:2197     63:2008     64:5219     65:2374     66:5123   
  67:2934     68:1169     69:4116     70:1394     71:685      72:3092   
  74:2552     75:1457     76:687      77:1971     78:3152     79:2494   
  80:1879     81:1635     82:1298     83:1100     84:1243     85:3078   
  86:618      87:1786     88:2413     89:2865     90:393      91:7180   
  92:1604     93:2545     94:2908     95:4157     96:1229     97:341    
  98:967      99:976     100:89      101:1041    102:1199    103:24960  
 104:3644    105:387     106:770     107:2171    108:687     109:3746   
 110:1995    111:2342    112:1650    113:1536    114:1513    115:1854   
 116:1860    117:2103    118:2273    119:1837    120:939     121:1035   
 122:2278    123:2119    124:1633    125:2136    128:1397    129:1252   
 130:768     131:2003    132:750     133:311     134:1395    135:330    
 136:681     137:899     138:2280    139:1156    140:771     141:1148   
 142:1023    143:1258    144:1209    145:334     146:1358    147:1242   
 148:2170    149:1260    150:758     151:1196    152:1586    153:445    
 154:2275    155:1260    156:1346    157:1119    158:904     159:2037   
 160:2032    161:1077    162:3194    163:918     164:1417    165:1317   
 166:595     167:1718    168:3608    169:629     170:4363    171:745    
 172:2008    173:2924    174:969     175:1060    176:2849    177:4398   
 178:2781    179:1885    180:2279    181:2563    182:3158    183:1509   
 184:2435    185:17413   186:4057    187:2997    188:3303    189:2720   
 190:9040    191:1358    192:10604   193:7839    194:6349    195:4571   
 196:3096    197:2293    198:6012    199:5901    200:7289    201:5240   
 202:10554   203:10139   204:4644    205:3088    206:3287    207:3298   
 208:4005    209:4592    210:4211    211:2077    212:3593    213:3208   
 214:1190    215:60      216:6171    217:2481    218:867     219:626    
 220:2060    221:928     222:974     223:1676   

End of report


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