[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Nov 20 18:03:36 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 21 Nov, 2020

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

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

BGP routing table entries examined:                              835774
    Prefixes after maximum aggregation (per Origin AS):          319021
    Deaggregation factor:                                          2.62
    Unique aggregates announced (without unneeded subnets):      398314
Total ASes present in the Internet Routing Table:                 69979
    Prefixes per ASN:                                             11.94
Origin-only ASes present in the Internet Routing Table:           60139
Origin ASes announcing only one prefix:                           24893
Transit ASes present in the Internet Routing Table:                9840
Transit-only ASes present in the Internet Routing Table:            299
Average AS path length visible in the Internet Routing Table:       4.4
    Max AS path length visible:                                      35
    Max AS path prepend of ASN ( 45582)                              27
Prefixes from unregistered ASNs in the Routing Table:               935
    Number of instances of unregistered ASNs:                       936
Number of 32-bit ASNs allocated by the RIRs:                      34200
Number of 32-bit ASNs visible in the Routing Table:               28331
Prefixes from 32-bit ASNs in the Routing Table:                  129951
Number of bogon 32-bit ASNs visible in the Routing Table:            15
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            462
Number of addresses announced to Internet:                   2865990144
    Equivalent to 170 /8s, 211 /16s and 138 /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:      284118

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

Prefixes being announced by APNIC Region ASes:                   217658
    Total APNIC prefixes after maximum aggregation:               63654
    APNIC Deaggregation factor:                                    3.42
Prefixes being announced from the APNIC address blocks:          213242
    Unique aggregates announced from the APNIC address blocks:    87121
APNIC Region origin ASes present in the Internet Routing Table:   11033
    APNIC Prefixes per ASN:                                       19.33
APNIC Region origin ASes announcing only one prefix:               3128
APNIC Region transit ASes present in the Internet Routing Table:   1609
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:   6156
Number of APNIC addresses announced to Internet:              779023744
    Equivalent to 46 /8s, 110 /16s and 245 /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:                    242531
    Total ARIN prefixes after maximum aggregation:               111606
    ARIN Deaggregation factor:                                     2.17
Prefixes being announced from the ARIN address blocks:           240572
    Unique aggregates announced from the ARIN address blocks:    115191
ARIN Region origin ASes present in the Internet Routing Table:    18691
    ARIN Prefixes per ASN:                                        12.87
ARIN Region origin ASes announcing only one prefix:                6810
ARIN Region transit ASes present in the Internet Routing Table:    1920
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:    3557
Number of ARIN addresses announced to Internet:              1093792000
    Equivalent to 65 /8s, 49 /16s and 241 /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:                    238274
    Total RIPE prefixes after maximum aggregation:               112098
    RIPE Deaggregation factor:                                     2.13
Prefixes being announced from the RIPE address blocks:           234322
    Unique aggregates announced from the RIPE address blocks:    137329
RIPE Region origin ASes present in the Internet Routing Table:    27535
    RIPE Prefixes per ASN:                                         8.51
RIPE Region origin ASes announcing only one prefix:               11861
RIPE Region transit ASes present in the Internet Routing Table:    3893
Average RIPE Region AS path length visible:                         4.4
    Max RIPE Region AS path length visible:                          35
Number of RIPE region 32-bit ASNs visible in the Routing Table:    9689
Number of RIPE addresses announced to Internet:               709712512
    Equivalent to 42 /8s, 77 /16s and 90 /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:                  111924
    Total LACNIC prefixes after maximum aggregation:              26173
    LACNIC Deaggregation factor:                                   4.28
Prefixes being announced from the LACNIC address blocks:         113028
    Unique aggregates announced from the LACNIC address blocks:   47967
LACNIC Region origin ASes present in the Internet Routing Table:  10604
    LACNIC Prefixes per ASN:                                      10.66
LACNIC Region origin ASes announcing only one prefix:              2606
LACNIC Region transit ASes present in the Internet Routing Table:  1959
Average LACNIC Region AS path length visible:                       5.0
    Max LACNIC Region AS path length visible:                        33
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  8196
Number of LACNIC addresses announced to Internet:             174339584
    Equivalent to 10 /8s, 100 /16s and 54 /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:                  24450
    Total AfriNIC prefixes after maximum aggregation:              4752
    AfriNIC Deaggregation factor:                                  5.15
Prefixes being announced from the AfriNIC address blocks:         34148
    Unique aggregates announced from the AfriNIC address blocks:  10300
AfriNIC Region origin ASes present in the Internet Routing Table:  1412
    AfriNIC Prefixes per ASN:                                     24.18
AfriNIC Region origin ASes announcing only one prefix:              487
AfriNIC Region transit ASes present in the Internet Routing Table:  289
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:  733
Number of AfriNIC addresses announced to Internet:            108683776
    Equivalent to 6 /8s, 122 /16s and 98 /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        5748        778     674  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4748       4192      73  ERX-CERNET-BKB China Education and Rese
  7552        3584       1330      21  VIETEL-AS-AP Viettel Group, VN
 45899        3261       1896      55  VNPT-AS-VN VNPT Corp, VN
  7713        3032        913     538  TELKOMNET-AS-AP PT Telekomunikasi Indon
  9808        2502       9044      57  CMNET-GD Guangdong Mobile Communication
  4766        2353      11103     553  KIXS-AS-KR Korea Telecom, KR
  9498        2293        466     232  BBIL-AP BHARTI Airtel Ltd., IN
  4755        2134        441     189  TATACOMM-AS TATA Communications formerl
 45090        2055       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        4717        313     750  CABLEONE, US
 16509        4459       9050    2061  AMAZON-02, US
  7155        4035        264      32  VIASAT-SP-BACKBONE, US
 22773        3734       2995     198  ASN-CXA-ALL-CCI-22773-RDC, US
  6327        3347       1323      82  SHAW, CA
 16625        3169       1654    2253  AKAMAI-AS, US
   209        2495       5061     511  CENTURYLINK-US-LEGACY-QWEST, US
 30036        2482        368      98  MEDIACOM-ENTERPRISE-BUSINESS, US
  5650        2314       2982    1626  FRONTIER-FRTR, US
 20115        2164       2895     506  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        6820        937    3630  TTNET, TR
 12479        6207       1667     142  UNI2-AS, ES
 39891        3459        195      22  ALJAWWALSTC-AS, SA
  8551        3321        379      45  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 20940        3298       3347     202  AKAMAI-ASN1, EU
 12389        2853       2280     885  ROSTELECOM-AS, RU
  9009        2188        226    1192  M247, GB
 34984        2172        354     576  TELLCOM-AS, TR
 13188        1611        100      26  TRIOLAN, UA
 58224        1384        852     540  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        8127       3441     596  Uninet S.A. de C.V., MX
 10620        3391        528     569  Telmex Colombia S.A., CO
 11830        2563        369      63  Instituto Costarricense de Electricidad
 13999        1489        426     402  Mega Cable, S.A. de C.V., MX
  6503        1470        312     474  Axtel, S.A.B. de C.V., MX
  7303        1469        943     268  Telecom Argentina S.A., AR
 28573        1355       2257     224  CLARO S.A., BR
  3816        1162        576     166  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
  6147        1148        379      39  Telefonica del Peru S.A.A., PE
 11664        1005        213     418  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        1546        393      22  LINKdotNET-AS, EG
 24835        1285        470      26  RAYA-AS, EG
 36992        1218       1529     131  ETISALAT-MISR, EG
 36903         918        480      94  MT-MPLS, MA
 29571         711         68      12  ORANGE-COTE-IVOIRE, CI
  6713         552       1863      34  IAM-AS, MA
 15399         488         46      16  WANANCHI-, KE
 37342         476         32       1  MOVITEL, MZ
 36935         456        522      40  Vodafone-, EG
 36914         368         82       3  KENET-AS, 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        8127       3441     596  Uninet S.A. de C.V., MX
 47331        6820        937    3630  TTNET, TR
 12479        6207       1667     142  UNI2-AS, ES
  7545        5748        778     674  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4748       4192      73  ERX-CERNET-BKB China Education and Rese
 11492        4717        313     750  CABLEONE, US
 16509        4459       9050    2061  AMAZON-02, US
  7155        4035        264      32  VIASAT-SP-BACKBONE, US
 22773        3734       2995     198  ASN-CXA-ALL-CCI-22773-RDC, US
  7552        3584       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        6207         6065  UNI2-AS, ES
  7545        5748         5074  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4748         4675  ERX-CERNET-BKB China Education and Research Net
  7155        4035         4003  VIASAT-SP-BACKBONE, US
 11492        4717         3967  CABLEONE, US
  7552        3584         3563  VIETEL-AS-AP Viettel Group, VN
 22773        3734         3536  ASN-CXA-ALL-CCI-22773-RDC, US
 39891        3459         3437  ALJAWWALSTC-AS, SA
  8551        3321         3276  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
  6327        3347         3265  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
    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
     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:    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     
/13:577     /14:1178    /15:1932    /16:13476   /17:8268    /18:14047   
/19:25677   /20:41494   /21:50442   /22:103273  /23:87562   /24:486154  
/25:1240    /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        6012        6820  TTNET, TR
 12479        5175        6207  UNI2-AS, ES
 11492        3813        4717  CABLEONE, US
  6327        3143        3347  SHAW, CA
  7155        3123        4035  VIASAT-SP-BACKBONE, US
 22773        2861        3734  ASN-CXA-ALL-CCI-22773-RDC, US
  8151        2839        8127  Uninet S.A. de C.V., MX
 39891        2801        3459  ALJAWWALSTC-AS, SA
  8551        2781        3321  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 30036        2224        2482  MEDIACOM-ENTERPRISE-BUSINESS, US

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

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

   1:1885      2:1208      3:33        4:19        5:3401      6:53     
   8:1487      9:1        11:1        12:1761     13:347      14:2391   
  15:72       16:12       17:306      18:91       20:113      23:4058   
  24:2361     25:3        27:2345     31:2148     32:111      34:1      
  35:39       36:1086     37:3464     38:2003     39:444      40:151    
  41:3813     42:626      43:2136     44:226      45:14969    46:3611   
  47:321      49:1575     50:1678     51:89       52:1127     54:215    
  55:761      56:7        57:53       58:1792     59:1139     60:817    
  61:2327     62:2213     63:2009     64:5270     65:2383     66:5109   
  67:2926     68:1169     69:4105     70:1406     71:684      72:3005   
  74:2545     75:1462     76:687      77:2043     78:3313     79:2582   
  80:2040     81:1696     82:1378     83:1080     84:1265     85:3188   
  86:618      87:1789     88:2531     89:2878     90:387      91:7139   
  92:1643     93:2537     94:2881     95:4270     96:1241     97:340    
  98:956      99:979     100:89      101:1033    102:1150    103:24857  
 104:3629    105:375     106:899     107:2155    108:691     109:3722   
 110:1986    111:2333    112:1656    113:1535    114:1524    115:1851   
 116:1857    117:2097    118:2259    119:1791    120:935     121:1028   
 122:2295    123:2114    124:1621    125:2145    128:1372    129:1244   
 130:765     131:1995    132:753     133:312     134:1388    135:329    
 136:678     137:899     138:2290    139:1156    140:764     141:1144   
 142:1028    143:1246    144:1209    145:333     146:1356    147:1236   
 148:2168    149:1242    150:756     151:1193    152:1595    153:442    
 154:3291    155:1286    156:2483    157:1122    158:906     159:2031   
 160:2003    161:1068    162:3190    163:911     164:1518    165:1322   
 166:593     167:1704    168:3591    169:626     170:4291    171:747    
 172:2006    173:2925    174:957     175:1061    176:2875    177:4354   
 178:2788    179:1895    180:2274    181:2569    182:3157    183:1502   
 184:2436    185:17417   186:3952    187:2977    188:3288    189:2700   
 190:9135    191:1369    192:10580   193:7847    194:6390    195:4552   
 196:3107    197:2225    198:6056    199:5904    200:7333    201:5264   
 202:10554   203:10185   204:4648    205:3093    206:3285    207:3304   
 208:4012    209:4526    210:4201    211:2082    212:3552    213:3176   
 214:1197    215:60      216:6150    217:2492    218:862     219:631    
 220:2046    221:926     222:969     223:1681   

End of report


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