[cmNOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Ven 26 Mar 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 27 Mar, 2021

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

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

BGP routing table entries examined:                              853765
    Prefixes after maximum aggregation (per Origin AS):          323350
    Deaggregation factor:                                          2.64
    Unique aggregates announced (without unneeded subnets):      405865
Total ASes present in the Internet Routing Table:                 70923
    Prefixes per ASN:                                             12.04
Origin-only ASes present in the Internet Routing Table:           61009
Origin ASes announcing only one prefix:                           25176
Transit ASes present in the Internet Routing Table:                9914
Transit-only ASes present in the Internet Routing Table:            307
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:               971
    Number of instances of unregistered ASNs:                       975
Number of 32-bit ASNs allocated by the RIRs:                      35515
Number of 32-bit ASNs visible in the Routing Table:               29547
Prefixes from 32-bit ASNs in the Routing Table:                  137633
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:            512
Number of addresses announced to Internet:                   2909527424
    Equivalent to 173 /8s, 107 /16s and 221 /24s
    Percentage of available address space announced:               78.6
    Percentage of allocated address space announced:               78.6
    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:      289671

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

Prefixes being announced by APNIC Region ASes:                   226292
    Total APNIC prefixes after maximum aggregation:               65353
    APNIC Deaggregation factor:                                    3.46
Prefixes being announced from the APNIC address blocks:          222401
    Unique aggregates announced from the APNIC address blocks:    89095
APNIC Region origin ASes present in the Internet Routing Table:   11418
    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:   1619
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:   6573
Number of APNIC addresses announced to Internet:              772179200
    Equivalent to 46 /8s, 6 /16s and 133 /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:                    244801
    Total ARIN prefixes after maximum aggregation:               112519
    ARIN Deaggregation factor:                                     2.18
Prefixes being announced from the ARIN address blocks:           245330
    Unique aggregates announced from the ARIN address blocks:    117363
ARIN Region origin ASes present in the Internet Routing Table:    18764
    ARIN Prefixes per ASN:                                        13.07
ARIN Region origin ASes announcing only one prefix:                6804
ARIN Region transit ASes present in the Internet Routing Table:    1932
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:    3780
Number of ARIN addresses announced to Internet:              1144306688
    Equivalent to 68 /8s, 52 /16s and 188 /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:                    243349
    Total RIPE prefixes after maximum aggregation:               113363
    RIPE Deaggregation factor:                                     2.15
Prefixes being announced from the RIPE address blocks:           239232
    Unique aggregates announced from the RIPE address blocks:    140771
RIPE Region origin ASes present in the Internet Routing Table:    27822
    RIPE Prefixes per ASN:                                         8.60
RIPE Region origin ASes announcing only one prefix:               11942
RIPE Region transit ASes present in the Internet Routing Table:    3892
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:   10051
Number of RIPE addresses announced to Internet:               710691456
    Equivalent to 42 /8s, 92 /16s and 74 /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:                  112916
    Total LACNIC prefixes after maximum aggregation:              26496
    LACNIC Deaggregation factor:                                   4.26
Prefixes being announced from the LACNIC address blocks:         114028
    Unique aggregates announced from the LACNIC address blocks:   48190
LACNIC Region origin ASes present in the Internet Routing Table:  10742
    LACNIC Prefixes per ASN:                                      10.62
LACNIC Region origin ASes announcing only one prefix:              2674
LACNIC Region transit ASes present in the Internet Routing Table:  2024
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:  8346
Number of LACNIC addresses announced to Internet:             174829312
    Equivalent to 10 /8s, 107 /16s and 175 /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:                  25435
    Total AfriNIC prefixes after maximum aggregation:              4872
    AfriNIC Deaggregation factor:                                  5.22
Prefixes being announced from the AfriNIC address blocks:         32262
    Unique aggregates announced from the AfriNIC address blocks:   9978
AfriNIC Region origin ASes present in the Internet Routing Table:  1458
    AfriNIC Prefixes per ASN:                                     22.13
AfriNIC Region origin ASes announcing only one prefix:              508
AfriNIC Region transit ASes present in the Internet Routing Table:  293
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:  797
Number of AfriNIC addresses announced to Internet:            107100928
    Equivalent to 6 /8s, 98 /16s and 59 /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        6259       9045      61  CMNET-GD Guangdong Mobile Communication
  7545        5724        783     673  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4813       4192      74  ERX-CERNET-BKB China Education and Rese
  7552        3538       1330      21  VIETEL-AS-AP Viettel Group, VN
  7713        3524       1014      58  TELKOMNET-AS-AP PT Telekomunikasi Indon
 45899        2908       1896      55  VNPT-AS-VN VNPT Corp, VN
  4766        2436      11104     565  KIXS-AS-KR Korea Telecom, KR
  9498        2316        482     231  BBIL-AP BHARTI Airtel Ltd., IN
  4755        2147        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        4904       9258    2208  AMAZON-02, US
 11492        4747        315     704  CABLEONE, US
  7155        4030        264      32  VIASAT-SP-BACKBONE, US
 22773        3910       2998     245  ASN-CXA-ALL-CCI-22773-RDC, US
 16625        3393       1760    2409  AKAMAI-AS, US
  6327        3360       1317      72  SHAW, CA
 30036        2540        372      93  MEDIACOM-ENTERPRISE-BUSINESS, US
   209        2527       5054     486  CENTURYLINK-US-LEGACY-QWEST, US
  5650        2346       2998    1637  FRONTIER-FRTR, US
  5972        2214        448     787  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        7740       1041    3484  TTNET, TR
 12479        6405       1701     138  UNI2-AS, ES
 20940        3557       3347     202  AKAMAI-ASN1, NL
 39891        3266        187      22  ALJAWWALSTC-AS, SA
  8551        3222        379      41  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 12389        2899       2284     898  ROSTELECOM-AS, RU
  9009        2375        246    1277  M247, GB
 34984        2183        355     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        8480       3472     570  Uninet S.A. de C.V., MX
 10620        3411        527     604  Telmex Colombia S.A., CO
 11830        2539        369      63  Instituto Costarricense de Electricidad
  7303        1872       1732     296  Telecom Argentina S.A., AR
 13999        1651        446     427  Mega Cable, S.A. de C.V., MX
  6503        1442        311     475  Axtel, S.A.B. de C.V., MX
 28573        1392       2269     222  CLARO S.A., BR
  3816        1210        623     154  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
  6147        1127        377      39  Telefonica del Peru S.A.A., PE
 11664        1002        212     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        1581        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         710         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         452         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        8480       3472     570  Uninet S.A. de C.V., MX
 47331        7740       1041    3484  TTNET, TR
 12479        6405       1701     138  UNI2-AS, ES
  9808        6259       9045      61  CMNET-GD Guangdong Mobile Communication
  7545        5724        783     673  TPG-INTERNET-AP TPG Telecom Limited, AU
 16509        4904       9258    2208  AMAZON-02, US
  4538        4813       4192      74  ERX-CERNET-BKB China Education and Rese
 11492        4747        315     704  CABLEONE, US
  7155        4030        264      32  VIASAT-SP-BACKBONE, US
 22773        3910       2998     245  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        6405         6267  UNI2-AS, ES
  9808        6259         6198  CMNET-GD Guangdong Mobile Communication Co.Ltd.
  7545        5724         5051  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4813         4739  ERX-CERNET-BKB China Education and Research Net
 47331        7740         4256  TTNET, TR
 11492        4747         4043  CABLEONE, US
  7155        4030         3998  VIASAT-SP-BACKBONE, US
 22773        3910         3665  ASN-CXA-ALL-CCI-22773-RDC, US
  7552        3538         3517  VIETEL-AS-AP Viettel Group, VN
  7713        3524         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
     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
     40544  UNALLOCATED  12.0.33.0/24              6461  ZAYO-6461, 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:    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        /8:10       /9:12      /10:40      /11:102     /12:292     
/13:576     /14:1183    /15:1946    /16:13515   /17:8328    /18:13797   
/19:25791   /20:42402   /21:51347   /22:106418  /23:90554   /24:496041  
/25:1411    /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        6918        7740  TTNET, TR
 12479        5359        6405  UNI2-AS, ES
 11492        3801        4747  CABLEONE, US
  6327        3165        3360  SHAW, CA
  7155        3118        4030  VIASAT-SP-BACKBONE, US
  8151        3052        8480  Uninet S.A. de C.V., MX
 22773        2952        3910  ASN-CXA-ALL-CCI-22773-RDC, US
 39891        2801        3266  ALJAWWALSTC-AS, SA
  8551        2686        3222  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 30036        2237        2540  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      2:1107      3:94        4:20        5:3567      6:64     
   7:5         8:1503      9:1        11:36       12:1750     13:352    
  14:2327     15:73       16:15       17:317      18:93       20:129    
  22:188      23:4596     24:2391     25:2        27:2500     31:2267   
  32:113      34:3        35:40       36:1282     37:3761     38:2071   
  39:607      40:153      41:3836     42:924      43:2120     44:239    
  45:14958    46:3684     47:320      49:1624     50:1754     51:92     
  52:1203     54:216      55:752      56:7        57:57       58:1736   
  59:1207     60:890      61:2395     62:2203     63:1973     64:5273   
  65:2382     66:5122     67:2885     68:1160     69:4047     70:1403   
  71:686      72:3171     74:2580     75:1482     76:684      77:2006   
  78:3665     79:2411     80:1841     81:1632     82:1352     83:1110   
  84:1263     85:3345     86:710      87:1786     88:2706     89:3017   
  90:423      91:7278     92:1745     93:2555     94:3042     95:4407   
  96:1257     97:344      98:986      99:970     100:89      101:1049   
 102:1293    103:25741   104:3696    105:426     106:720     107:2225   
 108:704     109:3962    110:1993    111:2937    112:1933    113:1622   
 114:1463    115:1877    116:1891    117:2293    118:2323    119:1894   
 120:1115    121:1086    122:2295    123:2185    124:1572    125:2101   
 128:1365    129:948     130:827     131:2026    132:746     133:355    
 134:1590    135:289     136:743     137:912     138:2301    139:1182   
 140:738     141:1183    142:1114    143:1274    144:1252    145:333    
 146:1391    147:1294    148:2203    149:1438    150:793     151:1088   
 152:1552    153:390     154:2272    155:1337    156:1510    157:1169   
 158:925     159:2032    160:2078    161:1135    162:3244    163:981    
 164:1494    165:1336    166:598     167:1778    168:3580    169:662    
 170:4282    171:763     172:2118    173:2945    174:968     175:1091   
 176:3067    177:4344    178:2895    179:1961    180:2269    181:2589   
 182:3208    183:1809    184:2411    185:18100   186:4197    187:3123   
 188:3304    189:2846    190:8891    191:1490    192:10611   193:7970   
 194:6539    195:4697    196:2908    197:2331    198:6038    199:6029   
 200:7408    201:5351    202:10597   203:10128   204:4652    205:3319   
 206:3527    207:3324    208:3999    209:4650    210:4258    211:2207   
 212:3675    213:3283    214:1214    215:61      216:6186    217:2521   
 218:1146    219:703     220:2073    221:974     222:968     223:1860   


End of report


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