[cmNOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Ven 13 Aou 18:02:46 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 14 Aug, 2021

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

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

BGP routing table entries examined:                              859233
    Prefixes after maximum aggregation (per Origin AS):          325419
    Deaggregation factor:                                          2.64
    Unique aggregates announced (without unneeded subnets):      412951
Total ASes present in the Internet Routing Table:                 71756
    Prefixes per ASN:                                             11.97
Origin-only ASes present in the Internet Routing Table:           61685
Origin ASes announcing only one prefix:                           25422
Transit ASes present in the Internet Routing Table:               10071
Transit-only ASes present in the Internet Routing Table:            328
Average AS path length visible in the Internet Routing Table:       4.3
    Max AS path length visible:                                      37
    Max AS path prepend of ASN (141827)                              33
Prefixes from unregistered ASNs in the Routing Table:              1073
    Number of instances of unregistered ASNs:                      1079
Number of 32-bit ASNs allocated by the RIRs:                      36882
Number of 32-bit ASNs visible in the Routing Table:               30663
Prefixes from 32-bit ASNs in the Routing Table:                  142443
Number of bogon 32-bit ASNs visible in the Routing Table:            26
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            533
Number of addresses announced to Internet:                   3039950336
    Equivalent to 181 /8s, 49 /16s and 246 /24s
    Percentage of available address space announced:               82.1
    Percentage of allocated address space announced:               82.1
    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:      285549

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

Prefixes being announced by APNIC Region ASes:                   230688
    Total APNIC prefixes after maximum aggregation:               66041
    APNIC Deaggregation factor:                                    3.49
Prefixes being announced from the APNIC address blocks:          226129
    Unique aggregates announced from the APNIC address blocks:    91042
APNIC Region origin ASes present in the Internet Routing Table:   11835
    APNIC Prefixes per ASN:                                       19.11
APNIC Region origin ASes announcing only one prefix:               3356
APNIC Region transit ASes present in the Internet Routing Table:   1676
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         37
Number of APNIC region 32-bit ASNs visible in the Routing Table:   6999
Number of APNIC addresses announced to Internet:              773842432
    Equivalent to 46 /8s, 31 /16s and 230 /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, 131072-147769
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:                    251416
    Total ARIN prefixes after maximum aggregation:               115126
    ARIN Deaggregation factor:                                     2.18
Prefixes being announced from the ARIN address blocks:           251019
    Unique aggregates announced from the ARIN address blocks:    119512
ARIN Region origin ASes present in the Internet Routing Table:    18871
    ARIN Prefixes per ASN:                                        13.30
ARIN Region origin ASes announcing only one prefix:                6860
ARIN Region transit ASes present in the Internet Routing Table:    1945
Average ARIN Region AS path length visible:                         3.9
    Max ARIN Region AS path length visible:                          28
Number of ARIN region 32-bit ASNs visible in the Routing Table:    4054
Number of ARIN addresses announced to Internet:              1269971840
    Equivalent to 75 /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:                    238809
    Total RIPE prefixes after maximum aggregation:               111777
    RIPE Deaggregation factor:                                     2.14
Prefixes being announced from the RIPE address blocks:           235343
    Unique aggregates announced from the RIPE address blocks:    144080
RIPE Region origin ASes present in the Internet Routing Table:    28017
    RIPE Prefixes per ASN:                                         8.40
RIPE Region origin ASes announcing only one prefix:               12033
RIPE Region transit ASes present in the Internet Routing Table:    3907
Average RIPE Region AS path length visible:                         4.3
    Max RIPE Region AS path length visible:                          29
Number of RIPE region 32-bit ASNs visible in the Routing Table:   10338
Number of RIPE addresses announced to Internet:               711115392
    Equivalent to 42 /8s, 98 /16s and 194 /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:                  111249
    Total LACNIC prefixes after maximum aggregation:              26556
    LACNIC Deaggregation factor:                                   4.19
Prefixes being announced from the LACNIC address blocks:         112292
    Unique aggregates announced from the LACNIC address blocks:   47161
LACNIC Region origin ASes present in the Internet Routing Table:  10772
    LACNIC Prefixes per ASN:                                      10.42
LACNIC Region origin ASes announcing only one prefix:              2648
LACNIC Region transit ASes present in the Internet Routing Table:  2079
Average LACNIC Region AS path length visible:                       4.9
    Max LACNIC Region AS path length visible:                        29
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  8427
Number of LACNIC addresses announced to Internet:             176148480
    Equivalent to 10 /8s, 127 /16s and 208 /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:                  25997
    Total AfriNIC prefixes after maximum aggregation:              5162
    AfriNIC Deaggregation factor:                                  5.04
Prefixes being announced from the AfriNIC address blocks:         33917
    Unique aggregates announced from the AfriNIC address blocks:  10685
AfriNIC Region origin ASes present in the Internet Routing Table:  1513
    AfriNIC Prefixes per ASN:                                     22.42
AfriNIC Region origin ASes announcing only one prefix:              525
AfriNIC Region transit ASes present in the Internet Routing Table:  298
Average AfriNIC Region AS path length visible:                      5.1
    Max AfriNIC Region AS path length visible:                       32
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  845
Number of AfriNIC addresses announced to Internet:            108525312
    Equivalent to 6 /8s, 119 /16s and 247 /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        7655       9000      57  CMNET-GD Guangdong Mobile Communication
  7545        5821        785     675  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4708       4192      74  ERX-CERNET-BKB China Education and Rese
  7552        3604       1330      20  VIETEL-AS-AP Viettel Group, VN
  7713        3531       1023      56  TELKOMNET-AS-AP PT Telekomunikasi Indon
 45899        2801       1897      55  VNPT-AS-VN VNPT Corp, VN
  4766        2487      11121     572  KIXS-AS-KR Korea Telecom, KR
  9498        2374        503     249  BBIL-AP BHARTI Airtel Ltd., IN
 45090        2129       1198      75  CNNIC-TENCENT-NET-AP Shenzhen Tencent C
  4755        2120        437     193  TATACOMM-AS TATA Communications formerl

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        5388       9657    2422  AMAZON-02, US
 11492        4766        314     740  CABLEONE, US
  7155        3981        264      32  VIASAT-SP-BACKBONE, US
 22773        3978       3030     277  ASN-CXA-ALL-CCI-22773-RDC, US
 16625        3589       1852    2488  AKAMAI-AS, US
  6327        3362       1313      62  SHAW, CA
 30036        2574        375     226  MEDIACOM-ENTERPRISE-BUSINESS, US
   209        2517       5029     455  CENTURYLINK-US-LEGACY-QWEST, US
  5972        2265        483     823  DNIC-ASBLK-05800-06055, US
 20115        2245       3048     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        6785       1726     145  UNI2-AS, ES
 20940        3743       3348     216  AKAMAI-ASN1, NL
 39891        3267        187      22  ALJAWWALSTC-AS, SA
  8551        2942        378      39  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 12389        2913       2283     896  ROSTELECOM-AS, RU
  9009        2467        256    1322  M247, GB
 34984        2218        357     594  TELLCOM-AS, TR
 61317        1750        269     965  ASDETUK www.heficed.com, GB
 58224        1623        889     561  TCI, IR
 13188        1610        100      27  TRIOLAN, UA

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        8665       3456     586  Uninet S.A. de C.V., MX
 10620        3399        522     671  Telmex Colombia S.A., CO
 11830        2507        369      62  Instituto Costarricense de Electricidad
 13999        1795        414     474  Mega Cable, S.A. de C.V., MX
  6503        1500        359     477  Axtel, S.A.B. de C.V., MX
 28573        1448       2306     230  CLARO S.A., BR
  3816        1240        652     152  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
 26615        1099       2351     134  TIM SA, BR
  6147        1090        369      22  Telefonica del Peru S.A.A., PE
 11664         983        194     437  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        1649        393      22  LINKdotNET-AS, EG
 24835        1425        499      30  RAYA-AS, EG
 36992        1309       1489     266  ETISALAT-MISR, EG
 36903        1183        537     110  MT-MPLS, MA
 29571         739         68      11  ORANGE-COTE-IVOIRE, CI
  6713         612       1863      34  IAM-AS, MA
 36935         571        522      40  Vodafone-, EG
 15399         500         49      28  WANANCHI-, KE
 37342         463         32       1  MOVITEL, MZ
  2018         329        319      74  TENET-1, ZA

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        8665       3456     586  Uninet S.A. de C.V., MX
  9808        7655       9000      57  CMNET-GD Guangdong Mobile Communication
 12479        6785       1726     145  UNI2-AS, ES
  7545        5821        785     675  TPG-INTERNET-AP TPG Telecom Limited, AU
 16509        5388       9657    2422  AMAZON-02, US
 11492        4766        314     740  CABLEONE, US
  4538        4708       4192      74  ERX-CERNET-BKB China Education and Rese
  7155        3981        264      32  VIASAT-SP-BACKBONE, US
 22773        3978       3030     277  ASN-CXA-ALL-CCI-22773-RDC, US
 20940        3743       3348     216  AKAMAI-ASN1, NL

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

Global Per AS Maximum Aggregation summary
-----------------------------------------

   ASN  No of nets  Net Savings  Description
  9808        7655         7598  CMNET-GD Guangdong Mobile Communication Co.Ltd.
 12479        6785         6640  UNI2-AS, ES
  7545        5821         5146  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4708         4634  ERX-CERNET-BKB China Education and Research Net
 11492        4766         4026  CABLEONE, US
  7155        3981         3949  VIASAT-SP-BACKBONE, US
 22773        3978         3701  ASN-CXA-ALL-CCI-22773-RDC, US
  7552        3604         3584  VIETEL-AS-AP Viettel Group, VN
 20940        3743         3527  AKAMAI-ASN1, NL
  7713        3531         3475  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
     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
    394936  UNALLOCATED  8.33.224.0/24              174  COGENT-174, US
     54338  UNALLOCATED  8.33.241.0/24             6461  ZAYO-6461, US
     23061  UNALLOCATED  8.39.119.0/24             3356  LEVEL3, US
      1782  UNALLOCATED  8.42.19.0/24             46887  LIGHTOWER, US
    395438  UNALLOCATED  8.42.206.0/24             3356  LEVEL3, US
     40544  UNALLOCATED  12.0.33.0/24              6461  ZAYO-6461, 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
23.177.96.0/24       Origin:    397300  UNASSIGNED
                    Transit:     33387  NOCIX, 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        /8:16       /9:13      /10:41      /11:102     /12:305     
/13:589     /14:1193    /15:2006    /16:13443   /17:8274    /18:13999   
/19:25455   /20:42472   /21:50611   /22:107035  /23:91675   /24:500556  
/25:1448    /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        5723        6785  UNI2-AS, ES
 11492        3723        4766  CABLEONE, US
  6327        3173        3362  SHAW, CA
  8151        3168        8665  Uninet S.A. de C.V., MX
  7155        3069        3981  VIASAT-SP-BACKBONE, US
 22773        2972        3978  ASN-CXA-ALL-CCI-22773-RDC, US
 39891        2803        3267  ALJAWWALSTC-AS, SA
  8551        2408        2942  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 30036        2225        2574  MEDIACOM-ENTERPRISE-BUSINESS, US
 11830        1934        2507  Instituto Costarricense de Electricidad y Telec

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

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

   1:1908      2:1111      3:141       4:20        5:3595      6:82     
   7:5         8:1542      9:1        11:164      12:1741     13:372    
  14:2283     15:99       16:20       17:334      18:105      20:124    
  21:1        22:188      23:4965     24:2422     25:2        27:2509   
  29:19       31:2321     32:116      34:1        35:47       36:1600   
  37:3807     38:2190     39:619      40:186      41:3776     42:969    
  43:2071     44:271      45:15382    46:3662     47:348      48:7      
  49:1618     50:1806     51:101      52:1247     54:251      55:624    
  56:4        57:53       58:1756     59:1202     60:933      61:2339   
  62:2309     63:1966     64:5372     65:2363     66:5016     67:2873   
  68:1168     69:4096     70:1366     71:677      72:3143     74:2611   
  75:1492     76:697      77:2021     78:1662     79:2275     80:1876   
  81:1547     82:1366     83:1138     84:1287     85:2739     86:711    
  87:1817     88:969      89:2987     90:511      91:7386     92:1814   
  93:2534     94:3110     95:3509     96:1290     97:344      98:979    
  99:963     100:77      101:1029    102:1587    103:26678   104:3940   
 105:431     106:808     107:2322    108:728     109:3876    110:2032   
 111:3149    112:1927    113:1424    114:1470    115:1894    116:1885   
 117:2353    118:2329    119:1907    120:1461    121:1058    122:2518   
 123:2155    124:1597    125:2069    128:1318    129:1314    130:894    
 131:2007    132:753     133:364     134:1657    135:301     136:793    
 137:944     138:2396    139:1204    140:792     141:1204    142:1224   
 143:1342    144:1258    145:323     146:1501    147:1370    148:2144   
 149:1491    150:820     151:1069    152:1632    153:423     154:3000   
 155:1340    156:1701    157:1223    158:967     159:2014    160:2323   
 161:1215    162:3386    163:1020    164:1546    165:1405    166:608    
 167:1782    168:3662    169:702     170:4368    171:801     172:2613   
 173:2961    174:1021    175:1086    176:3211    177:4394    178:2958   
 179:1864    180:2251    181:2618    182:3216    183:2010    184:2421   
 185:18686   186:4236    187:3172    188:3330    189:2917    190:8721   
 191:1363    192:10737   193:8300    194:6725    195:4820    196:2900   
 197:2139    198:6042    199:5992    200:7380    201:5219    202:10556  
 203:10061   204:4605    205:3371    206:3716    207:3340    208:4035   
 209:4704    210:4189    211:2340    212:3726    213:3462    214:1186   
 215:55      216:6339    217:2578    218:1208    219:681     220:1971   
 221:953     222:861     223:1967   

End of report


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