[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Nov 6 18:03:43 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 07 Nov, 2020

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

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

BGP routing table entries examined:                              829471
    Prefixes after maximum aggregation (per Origin AS):          316605
    Deaggregation factor:                                          2.62
    Unique aggregates announced (without unneeded subnets):      397281
Total ASes present in the Internet Routing Table:                 69852
    Prefixes per ASN:                                             11.87
Origin-only ASes present in the Internet Routing Table:           60030
Origin ASes announcing only one prefix:                           24882
Transit ASes present in the Internet Routing Table:                9822
Transit-only ASes present in the Internet Routing Table:            293
Average AS path length visible in the Internet Routing Table:       4.3
    Max AS path length visible:                                      32
    Max AS path prepend of ASN ( 45582)                              27
Prefixes from unregistered ASNs in the Routing Table:               927
    Number of instances of unregistered ASNs:                       928
Number of 32-bit ASNs allocated by the RIRs:                      34064
Number of 32-bit ASNs visible in the Routing Table:               28189
Prefixes from 32-bit ASNs in the Routing Table:                  128769
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:            500
Number of addresses announced to Internet:                   2866260224
    Equivalent to 170 /8s, 215 /16s and 169 /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:      279452

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

Prefixes being announced by APNIC Region ASes:                   217317
    Total APNIC prefixes after maximum aggregation:               63684
    APNIC Deaggregation factor:                                    3.41
Prefixes being announced from the APNIC address blocks:          212932
    Unique aggregates announced from the APNIC address blocks:    87129
APNIC Region origin ASes present in the Internet Routing Table:   11003
    APNIC Prefixes per ASN:                                       19.35
APNIC Region origin ASes announcing only one prefix:               3106
APNIC Region transit ASes present in the Internet Routing Table:   1607
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:   6125
Number of APNIC addresses announced to Internet:              779274112
    Equivalent to 46 /8s, 114 /16s and 199 /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:                    241717
    Total ARIN prefixes after maximum aggregation:               111410
    ARIN Deaggregation factor:                                     2.17
Prefixes being announced from the ARIN address blocks:           239568
    Unique aggregates announced from the ARIN address blocks:    114900
ARIN Region origin ASes present in the Internet Routing Table:    18677
    ARIN Prefixes per ASN:                                        12.83
ARIN Region origin ASes announcing only one prefix:                6810
ARIN Region transit ASes present in the Internet Routing Table:    1902
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:    3529
Number of ARIN addresses announced to Internet:              1093668096
    Equivalent to 65 /8s, 48 /16s and 13 /24s
ARIN AS Blocks         1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations)  2138-2584, 2615-2772, 2823-2829, 2880-3153
                       3354-4607, 4865-5119, 5632-6655, 6912-7466
                       7723-8191, 10240-12287, 13312-15359, 16384-17407
                       18432-20479, 21504-23551, 25600-26591,
                       26624-27647, 29696-30719, 31744-33791
                       35840-36863, 39936-40959, 46080-47103
                       53248-55295, 62464-63487, 64198-64296, 393216-399260
ARIN Address Blocks      3/8,   4/8,   6/8,   7/8,   8/8,   9/8,  11/8,
                        12/8,  13/8,  15/8,  16/8,  17/8,  18/8,  19/8,
                        20/8,  21/8,  22/8,  23/8,  24/8,  26/8,  28/8,
                        29/8,  30/8,  32/8,  33/8,  34/8,  35/8,  38/8,
                        40/8,  44/8,  47/8,  48/8,  50/8,  52/8,  53/8,
                        54/8,  55/8,  56/8,  57/8,  63/8,  64/8,  65/8,
                        66/8,  67/8,  68/8,  69/8,  70/8,  71/8,  72/8,
                        73/8,  74/8,  75/8,  76/8,  96/8,  97/8,  98/8,
                        99/8, 100/8, 104/8, 107/8, 108/8, 128/8, 129/8,
                       130/8, 131/8, 132/8, 134/8, 135/8, 136/8, 137/8,
                       138/8, 139/8, 140/8, 142/8, 143/8, 144/8, 146/8,
                       147/8, 148/8, 149/8, 152/8, 155/8, 156/8, 157/8,
                       158/8, 159/8, 160/8, 161/8, 162/8, 164/8, 165/8,
                       166/8, 167/8, 168/8, 169/8, 170/8, 172/8, 173/8,
                       174/8, 184/8, 192/8, 198/8, 199/8, 204/8, 205/8,
                       206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8,
                      

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes:                    233601
    Total RIPE prefixes after maximum aggregation:               110021
    RIPE Deaggregation factor:                                     2.12
Prefixes being announced from the RIPE address blocks:           229642
    Unique aggregates announced from the RIPE address blocks:    136835
RIPE Region origin ASes present in the Internet Routing Table:    27501
    RIPE Prefixes per ASN:                                         8.35
RIPE Region origin ASes announcing only one prefix:               11866
RIPE Region transit ASes present in the Internet Routing Table:    3902
Average RIPE Region AS path length visible:                         4.3
    Max RIPE Region AS path length visible:                          32
Number of RIPE region 32-bit ASNs visible in the Routing Table:    9644
Number of RIPE addresses announced to Internet:               709418112
    Equivalent to 42 /8s, 72 /16s and 220 /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:                  111613
    Total LACNIC prefixes after maximum aggregation:              26031
    LACNIC Deaggregation factor:                                   4.29
Prefixes being announced from the LACNIC address blocks:         112829
    Unique aggregates announced from the LACNIC address blocks:   47868
LACNIC Region origin ASes present in the Internet Routing Table:  10573
    LACNIC Prefixes per ASN:                                      10.67
LACNIC Region origin ASes announcing only one prefix:              2612
LACNIC Region transit ASes present in the Internet Routing Table:  1957
Average LACNIC Region AS path length visible:                       5.0
    Max LACNIC Region AS path length visible:                        29
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  8160
Number of LACNIC addresses announced to Internet:             174774528
    Equivalent to 10 /8s, 106 /16s and 217 /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:                  24294
    Total AfriNIC prefixes after maximum aggregation:              4745
    AfriNIC Deaggregation factor:                                  5.12
Prefixes being announced from the AfriNIC address blocks:         34000
    Unique aggregates announced from the AfriNIC address blocks:  10134
AfriNIC Region origin ASes present in the Internet Routing Table:  1413
    AfriNIC Prefixes per ASN:                                     24.06
AfriNIC Region origin ASes announcing only one prefix:              487
AfriNIC Region transit ASes present in the Internet Routing Table:  293
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:  731
Number of AfriNIC addresses announced to Internet:            108634880
    Equivalent to 6 /8s, 121 /16s and 163 /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        5709        775     682  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4745       4192      73  ERX-CERNET-BKB China Education and Rese
  7552        3561       1330      21  VIETEL-AS-AP Viettel Group, VN
 45899        3256       1896      54  VNPT-AS-VN VNPT Corp, VN
  7713        2995        907     601  TELKOMNET-AS-AP PT Telekomunikasi Indon
  9808        2559       9044      57  CMNET-GD Guangdong Mobile Communication
  4766        2349      11102     553  KIXS-AS-KR Korea Telecom, KR
  9498        2280        450     232  BBIL-AP BHARTI Airtel Ltd., IN
  4755        2142        441     190  TATACOMM-AS TATA Communications formerl
  9394        2044       4914      18  CTTNET China TieTong Telecommunications

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

ARIN Region per AS prefix count summary
---------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
 11492        4682        311     759  CABLEONE, US
 16509        4416       9023    2028  AMAZON-02, US
  7155        4034        264      32  VIASAT-SP-BACKBONE, US
 22773        3690       2992     189  ASN-CXA-ALL-CCI-22773-RDC, US
  6327        3353       1323      81  SHAW, CA
 16625        3125       1638    2230  AKAMAI-AS, US
   209        2513       5059     512  CENTURYLINK-US-LEGACY-QWEST, US
 30036        2472        367     116  MEDIACOM-ENTERPRISE-BUSINESS, US
  5650        2312       2981    1625  FRONTIER-FRTR, US
 20115        2165       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
 12479        6218       1636     141  UNI2-AS, ES
 39891        3652        203      21  ALJAWWALSTC-AS, SA
  8551        3432        379      45  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 20940        3259       3347     204  AKAMAI-ASN1, EU
 12389        2813       2279     881  ROSTELECOM-AS, RU
 47331        2466        421    1841  TTNET, TR
  9009        2168        223    1181  M247, GB
 34984        2153        352     580  TELLCOM-AS, TR
 13188        1611        100      26  TRIOLAN, UA
 58224        1347        847     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        8137       3437     607  Uninet S.A. de C.V., MX
 10620        3398        529     535  Telmex Colombia S.A., CO
 11830        2561        369      63  Instituto Costarricense de Electricidad
 13999        1488        451     403  Mega Cable, S.A. de C.V., MX
  7303        1478        952     267  Telecom Argentina S.A., AR
  6503        1471        312     474  Axtel, S.A.B. de C.V., MX
 28573        1355       2257     222  CLARO S.A., BR
  3816        1161        573     167  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
  6147        1147        379      39  Telefonica del Peru S.A.A., PE
 11664        1015        214     413  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        1575        393      22  LINKdotNET-AS, EG
 24835        1285        470      26  RAYA-AS, EG
 36992        1198       1528     129  ETISALAT-MISR, EG
 36903         918        480      94  MT-MPLS, MA
 29571         708         68      12  ORANGE-COTE-IVOIRE, CI
  6713         553       1863      34  IAM-AS, MA
 15399         493         46      15  WANANCHI-, KE
 37342         476         32       1  MOVITEL, MZ
 36935         456        522      40  Vodafone-, EG
 36914         358         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        8137       3437     607  Uninet S.A. de C.V., MX
 12479        6218       1636     141  UNI2-AS, ES
  7545        5709        775     682  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4745       4192      73  ERX-CERNET-BKB China Education and Rese
 11492        4682        311     759  CABLEONE, US
 16509        4416       9023    2028  AMAZON-02, US
  7155        4034        264      32  VIASAT-SP-BACKBONE, US
 22773        3690       2992     189  ASN-CXA-ALL-CCI-22773-RDC, US
 39891        3652        203      21  ALJAWWALSTC-AS, SA
  7552        3561       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        6218         6077  UNI2-AS, ES
  7545        5709         5027  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4745         4672  ERX-CERNET-BKB China Education and Research Net
  7155        4034         4002  VIASAT-SP-BACKBONE, US
 11492        4682         3923  CABLEONE, US
 39891        3652         3631  ALJAWWALSTC-AS, SA
  7552        3561         3540  VIETEL-AS-AP Viettel Group, VN
 22773        3690         3501  ASN-CXA-ALL-CCI-22773-RDC, US
  8551        3432         3387  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
  6327        3353         3272  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
     46505  UNALLOCATED  12.7.131.0/24             7018  ATT-INTERNET4, US
     15132  UNALLOCATED  12.9.150.0/24             1239  SPRINTLINK, US
     22280  UNALLOCATED  12.10.217.0/24             701  UUNET, 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
23.168.144.0/24      Origin:    398960  MAINNET, US
                    Transit:    395823  DOOF, 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     
/13:578     /14:1173    /15:1933    /16:13476   /17:8279    /18:14033   
/19:25643   /20:41510   /21:50047   /22:102758  /23:86946   /24:481397  
/25:1244    /26:0       /27:0       /28:0       /29:0       /30:0       
/31:0       /32:0       

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

   ASN  No of nets  Total ann.  Description
 12479        5189        6218  UNI2-AS, ES
 11492        3783        4682  CABLEONE, US
  6327        3151        3353  SHAW, CA
  7155        3122        4034  VIASAT-SP-BACKBONE, US
  8551        2892        3432  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 22773        2845        3690  ASN-CXA-ALL-CCI-22773-RDC, US
  8151        2836        8137  Uninet S.A. de C.V., MX
 39891        2801        3652  ALJAWWALSTC-AS, SA
 30036        2215        2472  MEDIACOM-ENTERPRISE-BUSINESS, US
  5650        1995        2312  FRONTIER-FRTR, US

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

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

   1:1883      2:1188      3:33        4:19        5:3589      6:53     
   8:1473      9:1        11:1        12:1764     13:343      14:2377   
  15:72       16:11       17:306      18:91       20:113      23:4006   
  24:2338     25:3        27:2600     31:2148     32:114      34:1      
  35:39       36:1055     37:3475     38:1919     39:443      40:150    
  41:3777     42:622      43:2138     44:223      45:14832    46:3602   
  47:321      49:1572     50:1660     51:90       52:1131     54:221    
  55:684      56:6        57:53       58:1791     59:1158     60:811    
  61:2330     62:2224     63:2014     64:5268     65:2390     66:5103   
  67:2919     68:1184     69:4077     70:1405     71:683      72:3006   
  74:2542     75:1461     76:689      77:1982     78:2159     79:2669   
  80:2047     81:1615     82:1318     83:1076     84:1264     85:2786   
  86:619      87:1792     88:1458     89:2869     90:381      91:7148   
  92:1603     93:2509     94:2844     95:3612     96:1241     97:342    
  98:953      99:979     100:88      101:1022    102:1160    103:24751  
 104:3604    105:383     106:893     107:2111    108:695     109:3721   
 110:1983    111:2319    112:1668    113:1540    114:1523    115:1847   
 116:1851    117:2105    118:2254    119:1784    120:874     121:1026   
 122:2313    123:2102    124:1618    125:2146    128:1368    129:1240   
 130:747     131:1914    132:751     133:312     134:1363    135:329    
 136:667     137:891     138:2295    139:1138    140:765     141:1099   
 142:984     143:1243    144:1150    145:326     146:1371    147:1232   
 148:2148    149:1210    150:754     151:1307    152:1568    153:437    
 154:3305    155:1247    156:2460    157:1114    158:895     159:2028   
 160:2000    161:1081    162:3186    163:910     164:1517    165:1301   
 166:592     167:1705    168:3579    169:616     170:4259    171:770    
 172:2003    173:2916    174:962     175:1061    176:2872    177:4301   
 178:2767    179:1872    180:2254    181:2553    182:3148    183:1492   
 184:2437    185:17255   186:3939    187:3074    188:3278    189:2658   
 190:9090    191:1376    192:10580   193:7750    194:6339    195:4540   
 196:3145    197:2216    198:6029    199:5915    200:7339    201:5267   
 202:10560   203:10176   204:4642    205:3083    206:3243    207:3286   
 208:3991    209:4508    210:4199    211:2077    212:3523    213:3316   
 214:1198    215:60      216:6104    217:2484    218:852     219:631    
 220:2057    221:921     222:970     223:1672   

End of report


More information about the sanog mailing list