[afnog] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Apr 2 18:02:38 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 03 Apr, 2021

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

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

BGP routing table entries examined:                              854726
    Prefixes after maximum aggregation (per Origin AS):          323513
    Deaggregation factor:                                          2.64
    Unique aggregates announced (without unneeded subnets):      406182
Total ASes present in the Internet Routing Table:                 70970
    Prefixes per ASN:                                             12.04
Origin-only ASes present in the Internet Routing Table:           61044
Origin ASes announcing only one prefix:                           25196
Transit ASes present in the Internet Routing Table:                9926
Transit-only ASes present in the Internet Routing Table:            312
Average AS path length visible in the Internet Routing Table:       4.4
    Max AS path length visible:                                      38
    Max AS path prepend of ASN ( 37385)                              33
Prefixes from unregistered ASNs in the Routing Table:               967
    Number of instances of unregistered ASNs:                       971
Number of 32-bit ASNs allocated by the RIRs:                      35604
Number of 32-bit ASNs visible in the Routing Table:               29608
Prefixes from 32-bit ASNs in the Routing Table:                  137894
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:            522
Number of addresses announced to Internet:                   2918308992
    Equivalent to 173 /8s, 241 /16s and 220 /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:      290249

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

Prefixes being announced by APNIC Region ASes:                   226287
    Total APNIC prefixes after maximum aggregation:               65318
    APNIC Deaggregation factor:                                    3.46
Prefixes being announced from the APNIC address blocks:          222425
    Unique aggregates announced from the APNIC address blocks:    89164
APNIC Region origin ASes present in the Internet Routing Table:   11432
    APNIC Prefixes per ASN:                                       19.46
APNIC Region origin ASes announcing only one prefix:               3255
APNIC Region transit ASes present in the Internet Routing Table:   1621
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:   6586
Number of APNIC addresses announced to Internet:              771899392
    Equivalent to 46 /8s, 2 /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:                    245102
    Total ARIN prefixes after maximum aggregation:               112563
    ARIN Deaggregation factor:                                     2.18
Prefixes being announced from the ARIN address blocks:           245569
    Unique aggregates announced from the ARIN address blocks:    117445
ARIN Region origin ASes present in the Internet Routing Table:    18774
    ARIN Prefixes per ASN:                                        13.08
ARIN Region origin ASes announcing only one prefix:                6815
ARIN Region transit ASes present in the Internet Routing Table:    1936
Average ARIN Region AS path length visible:                         3.9
    Max ARIN Region AS path length visible:                          30
Number of ARIN region 32-bit ASNs visible in the Routing Table:    3802
Number of ARIN addresses announced to Internet:              1152747008
    Equivalent to 68 /8s, 181 /16s and 134 /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:                    243836
    Total RIPE prefixes after maximum aggregation:               113503
    RIPE Deaggregation factor:                                     2.15
Prefixes being announced from the RIPE address blocks:           239762
    Unique aggregates announced from the RIPE address blocks:    140974
RIPE Region origin ASes present in the Internet Routing Table:    27846
    RIPE Prefixes per ASN:                                         8.61
RIPE Region origin ASes announcing only one prefix:               11961
RIPE Region transit ASes present in the Internet Routing Table:    3888
Average RIPE Region AS path length visible:                         4.3
    Max RIPE Region AS path length visible:                          38
Number of RIPE region 32-bit ASNs visible in the Routing Table:   10077
Number of RIPE addresses announced to Internet:               710602624
    Equivalent to 42 /8s, 90 /16s and 239 /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:                  112996
    Total LACNIC prefixes after maximum aggregation:              26483
    LACNIC Deaggregation factor:                                   4.27
Prefixes being announced from the LACNIC address blocks:         114121
    Unique aggregates announced from the LACNIC address blocks:   48185
LACNIC Region origin ASes present in the Internet Routing Table:  10743
    LACNIC Prefixes per ASN:                                      10.62
LACNIC Region origin ASes announcing only one prefix:              2667
LACNIC Region transit ASes present in the Internet Routing Table:  2020
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:  8352
Number of LACNIC addresses announced to Internet:             174952960
    Equivalent to 10 /8s, 109 /16s and 146 /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:                  25537
    Total AfriNIC prefixes after maximum aggregation:              4909
    AfriNIC Deaggregation factor:                                  5.20
Prefixes being announced from the AfriNIC address blocks:         32327
    Unique aggregates announced from the AfriNIC address blocks:   9941
AfriNIC Region origin ASes present in the Internet Routing Table:  1447
    AfriNIC Prefixes per ASN:                                     22.34
AfriNIC Region origin ASes announcing only one prefix:              498
AfriNIC Region transit ASes present in the Internet Routing Table:  294
Average AfriNIC Region AS path length visible:                      5.2
    Max AfriNIC Region AS path length visible:                       38
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  791
Number of AfriNIC addresses announced to Internet:            107682816
    Equivalent to 6 /8s, 107 /16s and 28 /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        6267       8996      55  CMNET-GD Guangdong Mobile Communication
  7545        5736        783     674  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4838       4192      74  ERX-CERNET-BKB China Education and Rese
  7713        3528       1022      55  TELKOMNET-AS-AP PT Telekomunikasi Indon
  7552        3515       1330      21  VIETEL-AS-AP Viettel Group, VN
 45899        2914       1896      54  VNPT-AS-VN VNPT Corp, VN
  4766        2435      11104     565  KIXS-AS-KR Korea Telecom, KR
  9498        2318        482     232  BBIL-AP BHARTI Airtel Ltd., IN
  4755        2125        441     190  TATACOMM-AS TATA Communications formerl
 45090        2097       1197      71  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        4920       9258    2210  AMAZON-02, US
 11492        4751        315     710  CABLEONE, US
  7155        4027        264      32  VIASAT-SP-BACKBONE, US
 22773        3918       2998     246  ASN-CXA-ALL-CCI-22773-RDC, US
 16625        3377       1750    2399  AKAMAI-AS, US
  6327        3359       1317      71  SHAW, CA
 30036        2541        372      94  MEDIACOM-ENTERPRISE-BUSINESS, US
   209        2525       5038     490  CENTURYLINK-US-LEGACY-QWEST, US
  5650        2342       2996    1636  FRONTIER-FRTR, US
  5972        2216        448     786  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        7753       1043    3473  TTNET, TR
 12479        6381       1701     138  UNI2-AS, ES
 20940        3577       3347     202  AKAMAI-ASN1, NL
 39891        3266        187      22  ALJAWWALSTC-AS, SA
  8551        3242        379      41  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 12389        2892       2282     892  ROSTELECOM-AS, RU
  9009        2377        246    1276  M247, GB
 34984        2202        356     582  TELLCOM-AS, TR
 13188        1610        100      31  TRIOLAN, UA
 58224        1570        881     572  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        8481       3472     570  Uninet S.A. de C.V., MX
 10620        3413        527     596  Telmex Colombia S.A., CO
 11830        2560        369      63  Instituto Costarricense de Electricidad
  7303        1872       1732     296  Telecom Argentina S.A., AR
 13999        1654        446     427  Mega Cable, S.A. de C.V., MX
  6503        1444        311     476  Axtel, S.A.B. de C.V., MX
 28573        1386       2269     223  CLARO S.A., BR
  3816        1210        623     154  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
  6147        1128        377      39  Telefonica del Peru S.A.A., PE
 11664         995        211     399  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        1582        393      22  LINKdotNET-AS, EG
 24835        1443        486      27  RAYA-AS, EG
 36992        1194       1537     174  ETISALAT-MISR, EG
 36903         977        510     104  MT-MPLS, MA
 29571         711         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
 15399         477         47      17  WANANCHI-, KE
 23889         447        232      16  MauritiusTelecom, MU

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        8481       3472     570  Uninet S.A. de C.V., MX
 47331        7753       1043    3473  TTNET, TR
 12479        6381       1701     138  UNI2-AS, ES
  9808        6267       8996      55  CMNET-GD Guangdong Mobile Communication
  7545        5736        783     674  TPG-INTERNET-AP TPG Telecom Limited, AU
 16509        4920       9258    2210  AMAZON-02, US
  4538        4838       4192      74  ERX-CERNET-BKB China Education and Rese
 11492        4751        315     710  CABLEONE, US
  7155        4027        264      32  VIASAT-SP-BACKBONE, US
 22773        3918       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        6381         6243  UNI2-AS, ES
  9808        6267         6212  CMNET-GD Guangdong Mobile Communication Co.Ltd.
  7545        5736         5062  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4838         4764  ERX-CERNET-BKB China Education and Research Net
 47331        7753         4280  TTNET, TR
 11492        4751         4041  CABLEONE, US
  7155        4027         3995  VIASAT-SP-BACKBONE, US
 22773        3918         3672  ASN-CXA-ALL-CCI-22773-RDC, US
  7552        3515         3494  VIETEL-AS-AP Viettel Group, VN
  7713        3528         3473  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
     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

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      /10:40      /11:102     /12:292     
/13:583     /14:1184    /15:1945    /16:13515   /17:8359    /18:13853   
/19:25799   /20:42439   /21:51375   /22:106396  /23:90727   /24:496686  
/25:1408    /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        6929        7753  TTNET, TR
 12479        5337        6381  UNI2-AS, ES
 11492        3805        4751  CABLEONE, US
  6327        3165        3359  SHAW, CA
  7155        3115        4027  VIASAT-SP-BACKBONE, US
  8151        3054        8481  Uninet S.A. de C.V., MX
 22773        2959        3918  ASN-CXA-ALL-CCI-22773-RDC, US
 39891        2801        3266  ALJAWWALSTC-AS, SA
  8551        2706        3242  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 30036        2237        2541  MEDIACOM-ENTERPRISE-BUSINESS, US

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

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

   1:1871      2:1114      3:94        4:19        5:3563      6:63     
   7:5         8:1502      9:1        11:36       12:1748     13:359    
  14:2318     15:73       16:15       17:317      18:93       20:129    
  22:188      23:4622     24:2397     25:2        27:2505     31:2286   
  32:113      34:2        35:40       36:1287     37:4017     38:2059   
  39:606      40:161      41:3854     42:924      43:2115     44:238    
  45:14977    46:3673     47:320      49:1608     50:1751     51:92     
  52:1208     54:217      55:778      56:6        57:57       58:1733   
  59:1202     60:891      61:2386     62:2199     63:1963     64:5291   
  65:2379     66:5159     67:2880     68:1154     69:4055     70:1398   
  71:689      72:3179     74:2581     75:1481     76:682      77:2018   
  78:3668     79:2420     80:1862     81:1647     82:1346     83:1118   
  84:1263     85:3353     86:710      87:1782     88:2703     89:3027   
  90:423      91:7298     92:1749     93:2537     94:3059     95:4402   
  96:1259     97:343      98:990      99:969     100:89      101:1047   
 102:1310    103:25706   104:3707    105:426     106:734     107:2246   
 108:705     109:3976    110:1993    111:2944    112:1970    113:1621   
 114:1465    115:1877    116:1889    117:2314    118:2340    119:1891   
 120:1104    121:1085    122:2265    123:2185    124:1563    125:2094   
 128:1368    129:954     130:834     131:2043    132:759     133:355    
 134:1595    135:289     136:750     137:916     138:2302    139:1200   
 140:736     141:1184    142:1117    143:1267    144:1255    145:331    
 146:1385    147:1294    148:2206    149:1442    150:788     151:1078   
 152:1554    153:392     154:2265    155:1326    156:1495    157:1172   
 158:926     159:2014    160:2092    161:1137    162:3254    163:975    
 164:1495    165:1335    166:594     167:1773    168:3551    169:663    
 170:4272    171:763     172:2111    173:2940    174:968     175:1095   
 176:3102    177:4312    178:2903    179:1957    180:2313    181:2562   
 182:3210    183:1827    184:2412    185:18154   186:4195    187:3198   
 188:3296    189:2824    190:8849    191:1487    192:10632   193:7975   
 194:6562    195:4705    196:2892    197:2363    198:6028    199:6035   
 200:7425    201:5346    202:10599   203:10085   204:4649    205:3318   
 206:3532    207:3333    208:4008    209:4645    210:4252    211:2187   
 212:3682    213:3288    214:1215    215:61      216:6176    217:2520   
 218:1151    219:703     220:2067    221:992     222:973     223:1859   


End of report



More information about the afnog mailing list