[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Nov 27 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 28 Nov, 2020

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

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

BGP routing table entries examined:                              831835
    Prefixes after maximum aggregation (per Origin AS):          318703
    Deaggregation factor:                                          2.61
    Unique aggregates announced (without unneeded subnets):      398430
Total ASes present in the Internet Routing Table:                 69978
    Prefixes per ASN:                                             11.89
Origin-only ASes present in the Internet Routing Table:           60160
Origin ASes announcing only one prefix:                           24897
Transit ASes present in the Internet Routing Table:                9818
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 ( 45582)                              27
Prefixes from unregistered ASNs in the Routing Table:               931
    Number of instances of unregistered ASNs:                       932
Number of 32-bit ASNs allocated by the RIRs:                      34274
Number of 32-bit ASNs visible in the Routing Table:               28363
Prefixes from 32-bit ASNs in the Routing Table:                  129598
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:            467
Number of addresses announced to Internet:                   2864993408
    Equivalent to 170 /8s, 196 /16s and 84 /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:      282996

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

Prefixes being announced by APNIC Region ASes:                   217118
    Total APNIC prefixes after maximum aggregation:               63778
    APNIC Deaggregation factor:                                    3.40
Prefixes being announced from the APNIC address blocks:          213143
    Unique aggregates announced from the APNIC address blocks:    87157
APNIC Region origin ASes present in the Internet Routing Table:   11054
    APNIC Prefixes per ASN:                                       19.28
APNIC Region origin ASes announcing only one prefix:               3133
APNIC Region transit ASes present in the Internet Routing Table:   1602
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:   6175
Number of APNIC addresses announced to Internet:              778321920
    Equivalent to 46 /8s, 100 /16s and 64 /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:                    240547
    Total ARIN prefixes after maximum aggregation:               111324
    ARIN Deaggregation factor:                                     2.16
Prefixes being announced from the ARIN address blocks:           240762
    Unique aggregates announced from the ARIN address blocks:    115400
ARIN Region origin ASes present in the Internet Routing Table:    18670
    ARIN Prefixes per ASN:                                        12.90
ARIN Region origin ASes announcing only one prefix:                6787
ARIN Region transit ASes present in the Internet Routing Table:    1915
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:    3574
Number of ARIN addresses announced to Internet:              1093758208
    Equivalent to 65 /8s, 49 /16s and 109 /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:                    237330
    Total RIPE prefixes after maximum aggregation:               111915
    RIPE Deaggregation factor:                                     2.12
Prefixes being announced from the RIPE address blocks:           233264
    Unique aggregates announced from the RIPE address blocks:    137417
RIPE Region origin ASes present in the Internet Routing Table:    27545
    RIPE Prefixes per ASN:                                         8.47
RIPE Region origin ASes announcing only one prefix:               11875
RIPE Region transit ASes present in the Internet Routing Table:    3892
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:    9691
Number of RIPE addresses announced to Internet:               709602432
    Equivalent to 42 /8s, 75 /16s and 172 /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:                  111432
    Total LACNIC prefixes after maximum aggregation:              26186
    LACNIC Deaggregation factor:                                   4.26
Prefixes being announced from the LACNIC address blocks:         112508
    Unique aggregates announced from the LACNIC address blocks:   47806
LACNIC Region origin ASes present in the Internet Routing Table:  10597
    LACNIC Prefixes per ASN:                                      10.62
LACNIC Region origin ASes announcing only one prefix:              2620
LACNIC Region transit ASes present in the Internet Routing Table:  1960
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:  8190
Number of LACNIC addresses announced to Internet:             174209792
    Equivalent to 10 /8s, 98 /16s and 59 /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:                  24475
    Total AfriNIC prefixes after maximum aggregation:              4764
    AfriNIC Deaggregation factor:                                  5.14
Prefixes being announced from the AfriNIC address blocks:         31691
    Unique aggregates announced from the AfriNIC address blocks:  10240
AfriNIC Region origin ASes present in the Internet Routing Table:  1411
    AfriNIC Prefixes per ASN:                                     22.46
AfriNIC Region origin ASes announcing only one prefix:              481
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:  733
Number of AfriNIC addresses announced to Internet:            108658688
    Equivalent to 6 /8s, 122 /16s and 0 /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        5737        777     656  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4751       4192      73  ERX-CERNET-BKB China Education and Rese
  7552        3564       1330      21  VIETEL-AS-AP Viettel Group, VN
 45899        3264       1896      55  VNPT-AS-VN VNPT Corp, VN
  7713        3219        936     519  TELKOMNET-AS-AP PT Telekomunikasi Indon
  9808        2545       9044      57  CMNET-GD Guangdong Mobile Communication
  4766        2350      11102     553  KIXS-AS-KR Korea Telecom, KR
  9498        2293        466     231  BBIL-AP BHARTI Airtel Ltd., IN
  4755        2136        441     189  TATACOMM-AS TATA Communications formerl
  9394        2058       4913      16  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        4727        314     753  CABLEONE, US
 16509        4477       9054    2065  AMAZON-02, US
  7155        4019        264      32  VIASAT-SP-BACKBONE, US
 22773        3735       2994     197  ASN-CXA-ALL-CCI-22773-RDC, US
  6327        3355       1323      82  SHAW, CA
 16625        3167       1651    2256  AKAMAI-AS, US
   209        2493       5059     509  CENTURYLINK-US-LEGACY-QWEST, US
 30036        2487        369      91  MEDIACOM-ENTERPRISE-BUSINESS, US
  5650        2314       2982    1626  FRONTIER-FRTR, US
 20115        2162       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        6235        860    3603  TTNET, TR
 12479        6214       1667     141  UNI2-AS, ES
 39891        3459        195      22  ALJAWWALSTC-AS, SA
 20940        3316       3347     202  AKAMAI-ASN1, EU
  8551        3243        379      45  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 12389        2869       2281     890  ROSTELECOM-AS, RU
  9009        2203        227    1195  M247, GB
 34984        2171        354     576  TELLCOM-AS, TR
 13188        1610        100      31  TRIOLAN, UA
 58224        1408        850     528  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        7812       3435     600  Uninet S.A. de C.V., MX
 10620        3386        526     563  Telmex Colombia S.A., CO
 11830        2558        369      63  Instituto Costarricense de Electricidad
 13999        1503        426     404  Mega Cable, S.A. de C.V., MX
  7303        1474        948     269  Telecom Argentina S.A., AR
  6503        1468        311     475  Axtel, S.A.B. de C.V., MX
 28573        1360       2258     225  CLARO S.A., BR
  6147        1150        379      39  Telefonica del Peru S.A.A., PE
  3816        1111        536     151  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
 11664        1007        213     421  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        1568        393      22  LINKdotNET-AS, EG
 24835        1286        476      26  RAYA-AS, EG
 36992        1218       1529     131  ETISALAT-MISR, EG
 36903         950        496      96  MT-MPLS, MA
 29571         707         68      12  ORANGE-COTE-IVOIRE, CI
  6713         532       1863      34  IAM-AS, MA
 37342         476         32       1  MOVITEL, MZ
 36935         456        522      40  Vodafone-, EG
 15399         451         46      16  WANANCHI-, KE
 36914         373         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        7812       3435     600  Uninet S.A. de C.V., MX
 47331        6235        860    3603  TTNET, TR
 12479        6214       1667     141  UNI2-AS, ES
  7545        5737        777     656  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4751       4192      73  ERX-CERNET-BKB China Education and Rese
 11492        4727        314     753  CABLEONE, US
 16509        4477       9054    2065  AMAZON-02, US
  7155        4019        264      32  VIASAT-SP-BACKBONE, US
 22773        3735       2994     197  ASN-CXA-ALL-CCI-22773-RDC, US
  7552        3564       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        6214         6073  UNI2-AS, ES
  7545        5737         5081  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4751         4678  ERX-CERNET-BKB China Education and Research Net
  7155        4019         3987  VIASAT-SP-BACKBONE, US
 11492        4727         3974  CABLEONE, US
  7552        3564         3543  VIETEL-AS-AP Viettel Group, VN
 22773        3735         3538  ASN-CXA-ALL-CCI-22773-RDC, US
 39891        3459         3437  ALJAWWALSTC-AS, SA
  6327        3355         3273  SHAW, CA
 45899        3264         3209  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     
/13:577     /14:1177    /15:1934    /16:13469   /17:8256    /18:14066   
/19:25626   /20:41465   /21:50331   /22:103077  /23:87401   /24:482763  
/25:1239    /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        5490        6235  TTNET, TR
 12479        5187        6214  UNI2-AS, ES
 11492        3814        4727  CABLEONE, US
  6327        3151        3355  SHAW, CA
  7155        3108        4019  VIASAT-SP-BACKBONE, US
 22773        2864        3735  ASN-CXA-ALL-CCI-22773-RDC, US
 39891        2801        3459  ALJAWWALSTC-AS, SA
  8551        2703        3243  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
  8151        2596        7812  Uninet S.A. de C.V., MX
 30036        2227        2487  MEDIACOM-ENTERPRISE-BUSINESS, US

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

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

   1:1877      2:1189      3:35        4:19        5:3410      6:53     
   8:1489      9:1        11:1        12:1763     13:349      14:2399   
  15:72       16:12       17:306      18:92       20:113      23:4078   
  24:2358     25:3        27:2344     31:2149     32:111      34:1      
  35:35       36:1108     37:3468     38:1992     39:467      40:151    
  41:3804     42:625      43:2141     44:229      45:14561    46:3614   
  47:321      49:1576     50:1677     51:90       52:1127     54:215    
  55:766      56:7        57:54       58:1689     59:1139     60:820    
  61:2329     62:2190     63:2009     64:5223     65:2378     66:5118   
  67:2927     68:1170     69:4110     70:1400     71:684      72:3067   
  74:2545     75:1457     76:688      77:2041     78:3133     79:2495   
  80:1874     81:1702     82:1369     83:1078     84:1267     85:3131   
  86:620      87:1790     88:2398     89:2865     90:393      91:7160   
  92:1635     93:2541     94:2896     95:4199     96:1247     97:340    
  98:956      99:976     100:89      101:1048    102:1169    103:24910  
 104:3641    105:387     106:775     107:2160    108:690     109:3726   
 110:1992    111:2347    112:1654    113:1539    114:1510    115:1854   
 116:1857    117:2096    118:2268    119:1811    120:935     121:1034   
 122:2278    123:2121    124:1627    125:2139    128:1362    129:1237   
 130:766     131:2012    132:756     133:312     134:1387    135:329    
 136:676     137:896     138:2305    139:1150    140:768     141:1141   
 142:1022    143:1236    144:1212    145:330     146:1361    147:1255   
 148:2134    149:1256    150:755     151:1194    152:1589    153:443    
 154:2287    155:1254    156:1380    157:1127    158:903     159:2035   
 160:2009    161:1070    162:3190    163:913     164:1421    165:1324   
 166:593     167:1714    168:3615    169:633     170:4359    171:742    
 172:2002    173:2934    174:964     175:1063    176:2889    177:4413   
 178:2785    179:1853    180:2281    181:2558    182:3160    183:1502   
 184:2436    185:17443   186:4011    187:2971    188:3297    189:2672   
 190:9044    191:1360    192:10597   193:7843    194:6361    195:4556   
 196:3093    197:2212    198:6079    199:5908    200:7297    201:5100   
 202:10552   203:10160   204:4654    205:3102    206:3284    207:3308   
 208:4007    209:4554    210:4213    211:2081    212:3557    213:3184   
 214:1189    215:60      216:6145    217:2493    218:864     219:627    
 220:2059    221:927     222:970     223:1678   

End of report


More information about the sanog mailing list