[afnog] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Mar 19 18:02:37 UTC 2021


This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.

The posting is sent to APOPS, NANOG, AfNOG, SANOG, PacNOG, SAFNOG
TZNOG, MENOG, BJNOG, SDNOG, CMNOG, LACNOG and the RIPE Routing WG.

Daily listings are sent to bgp-stats at lists.apnic.net

For historical data, please see http://thyme.rand.apnic.net.

If you have any comments please contact Philip Smith <pfsinoz at gmail.com>.

Routing Table Report   04:00 +10GMT Sat 20 Mar, 2021

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

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

BGP routing table entries examined:                              852766
    Prefixes after maximum aggregation (per Origin AS):          323236
    Deaggregation factor:                                          2.64
    Unique aggregates announced (without unneeded subnets):      405450
Total ASes present in the Internet Routing Table:                 70882
    Prefixes per ASN:                                             12.03
Origin-only ASes present in the Internet Routing Table:           60994
Origin ASes announcing only one prefix:                           25179
Transit ASes present in the Internet Routing Table:                9888
Transit-only ASes present in the Internet Routing Table:            306
Average AS path length visible in the Internet Routing Table:       4.3
    Max AS path length visible:                                      38
    Max AS path prepend of ASN ( 37385)                              33
Prefixes from unregistered ASNs in the Routing Table:              1034
    Number of instances of unregistered ASNs:                      1038
Number of 32-bit ASNs allocated by the RIRs:                      35442
Number of 32-bit ASNs visible in the Routing Table:               29493
Prefixes from 32-bit ASNs in the Routing Table:                  137004
Number of bogon 32-bit ASNs visible in the Routing Table:            38
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            543
Number of addresses announced to Internet:                   2916989056
    Equivalent to 173 /8s, 221 /16s and 184 /24s
    Percentage of available address space announced:               78.8
    Percentage of allocated address space announced:               78.8
    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:      289583

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

Prefixes being announced by APNIC Region ASes:                   225916
    Total APNIC prefixes after maximum aggregation:               65289
    APNIC Deaggregation factor:                                    3.46
Prefixes being announced from the APNIC address blocks:          222073
    Unique aggregates announced from the APNIC address blocks:    89207
APNIC Region origin ASes present in the Internet Routing Table:   11402
    APNIC Prefixes per ASN:                                       19.48
APNIC Region origin ASes announcing only one prefix:               3248
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:                         30
Number of APNIC region 32-bit ASNs visible in the Routing Table:   6550
Number of APNIC addresses announced to Internet:              771087872
    Equivalent to 45 /8s, 245 /16s and 222 /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:                    244602
    Total ARIN prefixes after maximum aggregation:               112452
    ARIN Deaggregation factor:                                     2.18
Prefixes being announced from the ARIN address blocks:           245196
    Unique aggregates announced from the ARIN address blocks:    117070
ARIN Region origin ASes present in the Internet Routing Table:    18755
    ARIN Prefixes per ASN:                                        13.07
ARIN Region origin ASes announcing only one prefix:                6811
ARIN Region transit ASes present in the Internet Routing Table:    1931
Average ARIN Region AS path length visible:                         3.9
    Max ARIN Region AS path length visible:                          24
Number of ARIN region 32-bit ASNs visible in the Routing Table:    3774
Number of ARIN addresses announced to Internet:              1152531200
    Equivalent to 68 /8s, 178 /16s and 59 /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:                    243000
    Total RIPE prefixes after maximum aggregation:               113332
    RIPE Deaggregation factor:                                     2.14
Prefixes being announced from the RIPE address blocks:           238797
    Unique aggregates announced from the RIPE address blocks:    140517
RIPE Region origin ASes present in the Internet Routing Table:    27809
    RIPE Prefixes per ASN:                                         8.59
RIPE Region origin ASes announcing only one prefix:               11936
RIPE Region transit ASes present in the Internet Routing Table:    3889
Average RIPE Region AS path length visible:                         4.3
    Max RIPE Region AS path length visible:                          30
Number of RIPE region 32-bit ASNs visible in the Routing Table:   10038
Number of RIPE addresses announced to Internet:               710531456
    Equivalent to 42 /8s, 89 /16s and 217 /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:                  112847
    Total LACNIC prefixes after maximum aggregation:              26497
    LACNIC Deaggregation factor:                                   4.26
Prefixes being announced from the LACNIC address blocks:         113992
    Unique aggregates announced from the LACNIC address blocks:   48226
LACNIC Region origin ASes present in the Internet Routing Table:  10732
    LACNIC Prefixes per ASN:                                      10.62
LACNIC Region origin ASes announcing only one prefix:              2670
LACNIC Region transit ASes present in the Internet Routing Table:  2009
Average LACNIC Region AS path length visible:                       4.9
    Max LACNIC Region AS path length visible:                        33
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  8336
Number of LACNIC addresses announced to Internet:             174697728
    Equivalent to 10 /8s, 105 /16s and 173 /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:                  25366
    Total AfriNIC prefixes after maximum aggregation:              4899
    AfriNIC Deaggregation factor:                                  5.18
Prefixes being announced from the AfriNIC address blocks:         32165
    Unique aggregates announced from the AfriNIC address blocks:   9943
AfriNIC Region origin ASes present in the Internet Routing Table:  1457
    AfriNIC Prefixes per ASN:                                     22.08
AfriNIC Region origin ASes announcing only one prefix:              514
AfriNIC Region transit ASes present in the Internet Routing Table:  291
Average AfriNIC Region AS path length visible:                      5.1
    Max AfriNIC Region AS path length visible:                       38
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  795
Number of AfriNIC addresses announced to Internet:            107694080
    Equivalent to 6 /8s, 107 /16s and 72 /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
  9808        6288       9045      60  CMNET-GD Guangdong Mobile Communication
  7545        5713        783     672  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4812       4192      74  ERX-CERNET-BKB China Education and Rese
  7552        3547       1330      21  VIETEL-AS-AP Viettel Group, VN
  7713        3520       1014      54  TELKOMNET-AS-AP PT Telekomunikasi Indon
 45899        2905       1896      55  VNPT-AS-VN VNPT Corp, VN
  4766        2442      11104     566  KIXS-AS-KR Korea Telecom, KR
  9498        2315        482     232  BBIL-AP BHARTI Airtel Ltd., IN
  4755        2146        441     190  TATACOMM-AS TATA Communications formerl
 45090        2080       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
 16509        4891       9260    2215  AMAZON-02, US
 11492        4738        314     720  CABLEONE, US
  7155        4030        264      32  VIASAT-SP-BACKBONE, US
 22773        3923       2998     246  ASN-CXA-ALL-CCI-22773-RDC, US
 16625        3367       1749    2395  AKAMAI-AS, US
  6327        3352       1317      72  SHAW, CA
   209        2535       5054     488  CENTURYLINK-US-LEGACY-QWEST, US
 30036        2533        372      88  MEDIACOM-ENTERPRISE-BUSINESS, US
  5650        2350       3000    1642  FRONTIER-FRTR, US
  5972        2209        447     784  DNIC-ASBLK-05800-06055, 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        7711       1039    3486  TTNET, TR
 12479        6382       1701     138  UNI2-AS, ES
 20940        3545       3347     207  AKAMAI-ASN1, NL
 39891        3266        187      22  ALJAWWALSTC-AS, SA
  8551        3186        379      41  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 12389        2897       2284     896  ROSTELECOM-AS, RU
  9009        2446        252    1312  M247, GB
 34984        2180        355     579  TELLCOM-AS, TR
 13188        1610        100      31  TRIOLAN, UA
 58224        1557        879     560  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        8456       3471     583  Uninet S.A. de C.V., MX
 10620        3404        526     619  Telmex Colombia S.A., CO
 11830        2458        369      62  Instituto Costarricense de Electricidad
  7303        1870       1732     295  Telecom Argentina S.A., AR
 13999        1659        436     421  Mega Cable, S.A. de C.V., MX
  6503        1442        311     475  Axtel, S.A.B. de C.V., MX
 28573        1411       2269     222  CLARO S.A., BR
  3816        1212        623     152  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
  6147        1128        377      39  Telefonica del Peru S.A.A., PE
 11664        1000        211     401  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        1578        393      22  LINKdotNET-AS, EG
 24835        1443        486      27  RAYA-AS, EG
 36992        1192       1537     174  ETISALAT-MISR, EG
 36903         977        510     104  MT-MPLS, MA
 29571         704         68      11  ORANGE-COTE-IVOIRE, CI
  6713         540       1863      34  IAM-AS, MA
 36935         514        522      40  Vodafone-, EG
 37342         487         32       1  MOVITEL, MZ
 23889         447        232      16  MauritiusTelecom, MU
 15399         444         47      17  WANANCHI-, KE

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

Global Per AS prefix count summary
----------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
  8151        8456       3471     583  Uninet S.A. de C.V., MX
 47331        7711       1039    3486  TTNET, TR
 12479        6382       1701     138  UNI2-AS, ES
  9808        6288       9045      60  CMNET-GD Guangdong Mobile Communication
  7545        5713        783     672  TPG-INTERNET-AP TPG Telecom Limited, AU
 16509        4891       9260    2215  AMAZON-02, US
  4538        4812       4192      74  ERX-CERNET-BKB China Education and Rese
 11492        4738        314     720  CABLEONE, US
  7155        4030        264      32  VIASAT-SP-BACKBONE, US
 22773        3923       2998     246  ASN-CXA-ALL-CCI-22773-RDC, US

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        6382         6244  UNI2-AS, ES
  9808        6288         6228  CMNET-GD Guangdong Mobile Communication Co.Ltd.
  7545        5713         5041  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4812         4738  ERX-CERNET-BKB China Education and Research Net
 47331        7711         4225  TTNET, TR
 11492        4738         4018  CABLEONE, US
  7155        4030         3998  VIASAT-SP-BACKBONE, US
 22773        3923         3677  ASN-CXA-ALL-CCI-22773-RDC, US
  7552        3547         3526  VIETEL-AS-AP Viettel Group, VN
  7713        3520         3466  TELKOMNET-AS-AP PT Telekomunikasi Indonesia, ID

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
     65560  UNALLOCATED  5.180.248.0/23          199290  MOWITEL, ES
     65560  UNALLOCATED  5.180.250.0/23          199290  MOWITEL, ES
     62828  UNALLOCATED  8.21.130.0/24             3356  LEVEL3, US
    393266  UNALLOCATED  8.23.52.0/24             46887  LIGHTOWER, US
     18604  UNALLOCATED  8.25.204.0/24             3356  LEVEL3, US
     32985  UNALLOCATED  8.28.31.0/24              3356  LEVEL3, US
    394936  UNALLOCATED  8.33.224.0/24              174  COGENT-174, US
     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

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:    397881  STINGERS, US
                    Transit:    398481  REDMERCURY, US
27.100.7.0/24        Origin:     56096  UNASSIGNED
                    Transit:     45455  TH-2S1N-AP Two S One N Co Ltd, Internet 
27.126.156.0/22      Origin:     55827  UNASSIGNED
                    Transit:      9930  TTNET-MY TIME dotCom Berhad No. 14, Jala
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        /8:11       /9:12      /10:41      /11:102     /12:291     
/13:575     /14:1181    /15:1937    /16:13502   /17:8314    /18:13812   
/19:25737   /20:42316   /21:51369   /22:106138  /23:90514   /24:495491  
/25:1423    /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        6890        7711  TTNET, TR
 12479        5336        6382  UNI2-AS, ES
 11492        3793        4738  CABLEONE, US
  6327        3157        3352  SHAW, CA
  7155        3118        4030  VIASAT-SP-BACKBONE, US
  8151        3030        8456  Uninet S.A. de C.V., MX
 22773        2961        3923  ASN-CXA-ALL-CCI-22773-RDC, US
 39891        2801        3266  ALJAWWALSTC-AS, SA
  8551        2650        3186  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 30036        2238        2533  MEDIACOM-ENTERPRISE-BUSINESS, US

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

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

   1:1879      2:1119      3:94        4:19        5:3540      6:64     
   7:5         8:1502      9:1        11:36       12:1755     13:352    
  14:2354     15:73       16:15       17:316      18:93       20:130    
  22:188      23:4579     24:2387     25:2        27:2497     31:2268   
  32:112      34:3        35:39       36:1282     37:3750     38:2073   
  39:581      40:151      41:3837     42:922      43:2115     44:239    
  45:14966    46:3649     47:320      49:1623     50:1746     51:91     
  52:1204     54:219      55:785      56:6        57:57       58:1746   
  59:1204     60:883      61:2407     62:2248     63:1964     64:5284   
  65:2386     66:5132     67:2895     68:1162     69:4053     70:1406   
  71:686      72:3195     74:2571     75:1483     76:687      77:2009   
  78:3643     79:2388     80:1842     81:1628     82:1325     83:1112   
  84:1267     85:3337     86:723      87:1782     88:2697     89:3012   
  90:427      91:7261     92:1750     93:2558     94:3037     95:4397   
  96:1253     97:344      98:993      99:971     100:89      101:1048   
 102:1275    103:25671   104:3693    105:423     106:720     107:2230   
 108:701     109:3937    110:2009    111:2873    112:1917    113:1644   
 114:1451    115:1875    116:1888    117:2292    118:2309    119:1890   
 120:1153    121:1083    122:2314    123:2196    124:1592    125:2100   
 128:1353    129:946     130:818     131:2031    132:769     133:354    
 134:1527    135:291     136:735     137:911     138:2301    139:1194   
 140:729     141:1186    142:1113    143:1270    144:1254    145:331    
 146:1387    147:1284    148:2199    149:1444    150:783     151:1086   
 152:1555    153:387     154:2228    155:1351    156:1483    157:1159   
 158:927     159:2040    160:2073    161:1129    162:3242    163:972    
 164:1435    165:1330    166:598     167:1774    168:3548    169:662    
 170:4281    171:762     172:2118    173:2953    174:976     175:1101   
 176:3047    177:4317    178:2890    179:1951    180:2274    181:2613   
 182:3202    183:1792    184:2446    185:18033   186:4193    187:3140   
 188:3298    189:2811    190:8965    191:1484    192:10587   193:7945   
 194:6536    195:4684    196:2907    197:2329    198:6037    199:5998   
 200:7425    201:5349    202:10580   203:10119   204:4649    205:3316   
 206:3522    207:3314    208:3999    209:4630    210:4255    211:2201   
 212:3669    213:3285    214:1208    215:60      216:6234    217:2520   
 218:1148    219:701     220:2074    221:977     222:980     223:1858   


End of report



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