[safnog] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Feb 19 18:02:52 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 Feb, 2021

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

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

BGP routing table entries examined:                              846303
    Prefixes after maximum aggregation (per Origin AS):          322229
    Deaggregation factor:                                          2.63
    Unique aggregates announced (without unneeded subnets):      403355
Total ASes present in the Internet Routing Table:                 70577
    Prefixes per ASN:                                             11.99
Origin-only ASes present in the Internet Routing Table:           60708
Origin ASes announcing only one prefix:                           25065
Transit ASes present in the Internet Routing Table:                9869
Transit-only ASes present in the Internet Routing Table:            298
Average AS path length visible in the Internet Routing Table:       4.3
    Max AS path length visible:                                      62
    Max AS path prepend of ASN (266299)                              59
Prefixes from unregistered ASNs in the Routing Table:               974
    Number of instances of unregistered ASNs:                       978
Number of 32-bit ASNs allocated by the RIRs:                      35117
Number of 32-bit ASNs visible in the Routing Table:               29149
Prefixes from 32-bit ASNs in the Routing Table:                  136109
Number of bogon 32-bit ASNs visible in the Routing Table:            16
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            598
Number of addresses announced to Internet:                   2914957184
    Equivalent to 173 /8s, 190 /16s and 183 /24s
    Percentage of available address space announced:               78.7
    Percentage of allocated address space announced:               78.7
    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:      288946

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

Prefixes being announced by APNIC Region ASes:                   221371
    Total APNIC prefixes after maximum aggregation:               65337
    APNIC Deaggregation factor:                                    3.39
Prefixes being announced from the APNIC address blocks:          217208
    Unique aggregates announced from the APNIC address blocks:    88272
APNIC Region origin ASes present in the Internet Routing Table:   11277
    APNIC Prefixes per ASN:                                       19.26
APNIC Region origin ASes announcing only one prefix:               3214
APNIC Region transit ASes present in the Internet Routing Table:   1602
Average APNIC Region AS path length visible:                        4.6
    Max APNIC Region AS path length visible:                         30
Number of APNIC region 32-bit ASNs visible in the Routing Table:   6431
Number of APNIC addresses announced to Internet:              770503680
    Equivalent to 45 /8s, 236 /16s and 244 /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:                    243913
    Total ARIN prefixes after maximum aggregation:               112217
    ARIN Deaggregation factor:                                     2.17
Prefixes being announced from the ARIN address blocks:           244427
    Unique aggregates announced from the ARIN address blocks:    116579
ARIN Region origin ASes present in the Internet Routing Table:    18734
    ARIN Prefixes per ASN:                                        13.05
ARIN Region origin ASes announcing only one prefix:                6811
ARIN Region transit ASes present in the Internet Routing Table:    1922
Average ARIN Region AS path length visible:                         3.9
    Max ARIN Region AS path length visible:                          25
Number of ARIN region 32-bit ASNs visible in the Routing Table:    3720
Number of ARIN addresses announced to Internet:              1151854592
    Equivalent to 68 /8s, 167 /16s and 232 /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:                    242151
    Total RIPE prefixes after maximum aggregation:               112676
    RIPE Deaggregation factor:                                     2.15
Prefixes being announced from the RIPE address blocks:           238090
    Unique aggregates announced from the RIPE address blocks:    139690
RIPE Region origin ASes present in the Internet Routing Table:    27745
    RIPE Prefixes per ASN:                                         8.58
RIPE Region origin ASes announcing only one prefix:               11909
RIPE Region transit ASes present in the Internet Routing Table:    3903
Average RIPE Region AS path length visible:                         4.3
    Max RIPE Region AS path length visible:                          35
Number of RIPE region 32-bit ASNs visible in the Routing Table:    9952
Number of RIPE addresses announced to Internet:               710200960
    Equivalent to 42 /8s, 84 /16s and 206 /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:                  112695
    Total LACNIC prefixes after maximum aggregation:              26368
    LACNIC Deaggregation factor:                                   4.27
Prefixes being announced from the LACNIC address blocks:         113848
    Unique aggregates announced from the LACNIC address blocks:   48239
LACNIC Region origin ASes present in the Internet Routing Table:  10666
    LACNIC Prefixes per ASN:                                      10.67
LACNIC Region origin ASes announcing only one prefix:              2629
LACNIC Region transit ASes present in the Internet Routing Table:  2013
Average LACNIC Region AS path length visible:                       4.9
    Max LACNIC Region AS path length visible:                        62
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  8267
Number of LACNIC addresses announced to Internet:             174441472
    Equivalent to 10 /8s, 101 /16s and 196 /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:                  25198
    Total AfriNIC prefixes after maximum aggregation:              4895
    AfriNIC Deaggregation factor:                                  5.15
Prefixes being announced from the AfriNIC address blocks:         32132
    Unique aggregates announced from the AfriNIC address blocks:  10035
AfriNIC Region origin ASes present in the Internet Routing Table:  1452
    AfriNIC Prefixes per ASN:                                     22.13
AfriNIC Region origin ASes announcing only one prefix:              502
AfriNIC Region transit ASes present in the Internet Routing Table:  283
Average AfriNIC Region AS path length visible:                      5.1
    Max AfriNIC Region AS path length visible:                       31
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  779
Number of AfriNIC addresses announced to Internet:            107530240
    Equivalent to 6 /8s, 104 /16s and 200 /24s
AfriNIC AS Blocks      36864-37887, 327680-329727 & ERX transfers
AfriNIC Address Blocks  41/8,  45/8, 102/8, 105/8, 154/8, 196/8, 197/8,
                      

APNIC Region per AS prefix count summary
----------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
  7545        5727        782     668  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4749       4192      74  ERX-CERNET-BKB China Education and Rese
  7552        3412       1330      19  VIETEL-AS-AP Viettel Group, VN
  7713        3229        935     528  TELKOMNET-AS-AP PT Telekomunikasi Indon
  9808        3220       9045      60  CMNET-GD Guangdong Mobile Communication
 45899        2886       1896      55  VNPT-AS-VN VNPT Corp, VN
  4766        2446      11105     568  KIXS-AS-KR Korea Telecom, KR
  9498        2306        482     230  BBIL-AP BHARTI Airtel Ltd., IN
  4755        2142        441     191  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        4834       9093    2175  AMAZON-02, US
 11492        4753        315     729  CABLEONE, US
  7155        4038        264      32  VIASAT-SP-BACKBONE, US
 22773        3910       2996     250  ASN-CXA-ALL-CCI-22773-RDC, US
  6327        3329       1317      72  SHAW, CA
 16625        3310       1726    2353  AKAMAI-AS, US
   209        2519       5058     502  CENTURYLINK-US-LEGACY-QWEST, US
 30036        2509        370      84  MEDIACOM-ENTERPRISE-BUSINESS, US
  5650        2354       3000    1642  FRONTIER-FRTR, US
  5972        2188        437     773  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        8232       1100    3147  TTNET, TR
 12479        6320       1701     147  UNI2-AS, ES
 39891        3459        195      22  ALJAWWALSTC-AS, SA
 20940        3420       3347     207  AKAMAI-ASN1, NL
  8551        3009        379      41  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 12389        2877       2282     891  ROSTELECOM-AS, RU
  9009        2404        245    1300  M247, GB
 34984        2178        355     583  TELLCOM-AS, TR
 13188        1610        100      31  TRIOLAN, UA
 58224        1525        873     563  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        8345       3469     591  Uninet S.A. de C.V., MX
 10620        3396        526     614  Telmex Colombia S.A., CO
 11830        2563        369      63  Instituto Costarricense de Electricidad
 13999        1630        433     417  Mega Cable, S.A. de C.V., MX
  6503        1442        311     475  Axtel, S.A.B. de C.V., MX
  7303        1440        914     261  Telecom Argentina S.A., AR
 28573        1391       2261     221  CLARO S.A., BR
  3816        1171        594     148  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
  6147        1060        377      39  Telefonica del Peru S.A.A., PE
 11664         990        211     409  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        1577        393      22  LINKdotNET-AS, EG
 24835        1247        482      29  RAYA-AS, EG
 36992        1186       1537     174  ETISALAT-MISR, EG
 36903         978        510     101  MT-MPLS, MA
 29571         704         68      11  ORANGE-COTE-IVOIRE, CI
  6713         536       1863      34  IAM-AS, MA
 37342         485         32       1  MOVITEL, MZ
 15399         483         46      18  WANANCHI-, KE
 36935         476        522      40  Vodafone-, EG
 23889         454        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        8345       3469     591  Uninet S.A. de C.V., MX
 47331        8232       1100    3147  TTNET, TR
 12479        6320       1701     147  UNI2-AS, ES
  7545        5727        782     668  TPG-INTERNET-AP TPG Telecom Limited, AU
 16509        4834       9093    2175  AMAZON-02, US
 11492        4753        315     729  CABLEONE, US
  4538        4749       4192      74  ERX-CERNET-BKB China Education and Rese
  7155        4038        264      32  VIASAT-SP-BACKBONE, US
 22773        3910       2996     250  ASN-CXA-ALL-CCI-22773-RDC, US
 39891        3459        195      22  ALJAWWALSTC-AS, SA

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        6320         6173  UNI2-AS, ES
 47331        8232         5085  TTNET, TR
  7545        5727         5059  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4749         4675  ERX-CERNET-BKB China Education and Research Net
 11492        4753         4024  CABLEONE, US
  7155        4038         4006  VIASAT-SP-BACKBONE, US
 22773        3910         3660  ASN-CXA-ALL-CCI-22773-RDC, US
 39891        3459         3437  ALJAWWALSTC-AS, SA
  7552        3412         3393  VIETEL-AS-AP Viettel Group, VN
  6327        3329         3257  SHAW, CA

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

List of Unregistered Origin ASNs (Global)
-----------------------------------------

    Bad AS  Designation  Net Originated      Transit AS  Transit AS Name
     62828  UNALLOCATED  8.21.130.0/24             3356  LEVEL3, US
    393266  UNALLOCATED  8.23.52.0/24               174  COGENT-174, US
     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
23.226.240.0/20      Origin:     40430  UNASSIGNED
                    Transit:       174  COGENT-174, 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

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     /12:293     
/13:579     /14:1182    /15:1932    /16:13476   /17:8304    /18:13783   
/19:25623   /20:41705   /21:50836   /22:105175  /23:89696   /24:492111  
/25:1442    /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        7368        8232  TTNET, TR
 12479        5286        6320  UNI2-AS, ES
 11492        3809        4753  CABLEONE, US
  6327        3134        3329  SHAW, CA
  7155        3126        4038  VIASAT-SP-BACKBONE, US
 22773        2953        3910  ASN-CXA-ALL-CCI-22773-RDC, US
  8151        2916        8345  Uninet S.A. de C.V., MX
 39891        2801        3459  ALJAWWALSTC-AS, SA
  8551        2473        3009  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 30036        2238        2509  MEDIACOM-ENTERPRISE-BUSINESS, US

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

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

   1:1875      2:1169      3:94        4:18        5:3597      6:64     
   7:5         8:1488      9:1        11:36       12:1760     13:358    
  14:2386     15:77       16:15       17:309      18:94       20:118    
  22:188      23:4356     24:2382     25:2        27:2384     31:2225   
  32:112      34:3        35:39       36:1141     37:3657     38:2044   
  39:484      40:150      41:3869     42:904      43:2100     44:237    
  45:14972    46:3627     47:320      49:1611     50:1707     51:92     
  52:1206     54:216      55:775      56:6        57:57       58:1703   
  59:1166     60:823      61:2363     62:2213     63:1971     64:5261   
  65:2405     66:5171     67:2940     68:1174     69:4101     70:1404   
  71:687      72:3246     74:2587     75:1476     76:688      77:2011   
  78:3774     79:2227     80:1803     81:1630     82:1305     83:1104   
  84:1259     85:3345     86:650      87:1797     88:2855     89:3023   
  90:407      91:7266     92:1651     93:2524     94:2946     95:4452   
  96:1224     97:345      98:983      99:978     100:90      101:1067   
 102:1299    103:25412   104:3668    105:419     106:722     107:2213   
 108:677     109:3883    110:2003    111:2409    112:1773    113:1682   
 114:1440    115:1870    116:1895    117:2192    118:2320    119:1933   
 120:942     121:1085    122:2219    123:2177    124:1621    125:2105   
 128:1350    129:1197    130:807     131:2021    132:762     133:355    
 134:1546    135:288     136:715     137:902     138:2287    139:1161   
 140:743     141:1167    142:1057    143:1258    144:1225    145:325    
 146:1390    147:1243    148:2205    149:1262    150:701     151:1205   
 152:1551    153:386     154:2251    155:1328    156:1453    157:1154   
 158:929     159:2055    160:2067    161:1118    162:3223    163:974    
 164:1426    165:1324    166:612     167:1763    168:3524    169:654    
 170:4338    171:757     172:2080    173:2958    174:978     175:1075   
 176:2966    177:4367    178:2881    179:1906    180:2271    181:2619   
 182:3196    183:1702    184:2464    185:17892   186:4160    187:3116   
 188:3310    189:2773    190:8997    191:1454    192:10659   193:7918   
 194:6501    195:4662    196:2955    197:2349    198:6034    199:5994   
 200:7406    201:5345    202:10532   203:10080   204:4644    205:3290   
 206:3436    207:3321    208:3997    209:4619    210:4234    211:2168   
 212:3650    213:3283    214:1210    215:61      216:6178    217:2524   
 218:1021    219:696     220:2064    221:940     222:984     223:1748   


End of report



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