[safnog] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Feb 5 18:04:09 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 06 Feb, 2021

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

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

BGP routing table entries examined:                              844686
    Prefixes after maximum aggregation (per Origin AS):          322012
    Deaggregation factor:                                          2.62
    Unique aggregates announced (without unneeded subnets):      401655
Total ASes present in the Internet Routing Table:                 70445
    Prefixes per ASN:                                             11.99
Origin-only ASes present in the Internet Routing Table:           60620
Origin ASes announcing only one prefix:                           25030
Transit ASes present in the Internet Routing Table:                9825
Transit-only ASes present in the Internet Routing Table:            301
Average AS path length visible in the Internet Routing Table:       4.4
    Max AS path length visible:                                      62
    Max AS path prepend of ASN (266299)                              59
Prefixes from unregistered ASNs in the Routing Table:               881
    Number of instances of unregistered ASNs:                       887
Number of 32-bit ASNs allocated by the RIRs:                      34957
Number of 32-bit ASNs visible in the Routing Table:               29011
Prefixes from 32-bit ASNs in the Routing Table:                  135484
Number of bogon 32-bit ASNs visible in the Routing Table:            27
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            619
Number of addresses announced to Internet:                   2910601856
    Equivalent to 173 /8s, 124 /16s and 66 /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:      288192

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

Prefixes being announced by APNIC Region ASes:                   221527
    Total APNIC prefixes after maximum aggregation:               65515
    APNIC Deaggregation factor:                                    3.38
Prefixes being announced from the APNIC address blocks:          217308
    Unique aggregates announced from the APNIC address blocks:    88038
APNIC Region origin ASes present in the Internet Routing Table:   11245
    APNIC Prefixes per ASN:                                       19.32
APNIC Region origin ASes announcing only one prefix:               3214
APNIC Region transit ASes present in the Internet Routing Table:   1588
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:   6395
Number of APNIC addresses announced to Internet:              770416128
    Equivalent to 45 /8s, 235 /16s and 158 /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:                    243213
    Total ARIN prefixes after maximum aggregation:               112211
    ARIN Deaggregation factor:                                     2.17
Prefixes being announced from the ARIN address blocks:           243808
    Unique aggregates announced from the ARIN address blocks:    116192
ARIN Region origin ASes present in the Internet Routing Table:    18713
    ARIN Prefixes per ASN:                                        13.03
ARIN Region origin ASes announcing only one prefix:                6810
ARIN Region transit ASes present in the Internet Routing Table:    1906
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:    3697
Number of ARIN addresses announced to Internet:              1147742464
    Equivalent to 68 /8s, 105 /16s and 41 /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:                    241543
    Total RIPE prefixes after maximum aggregation:               112276
    RIPE Deaggregation factor:                                     2.15
Prefixes being announced from the RIPE address blocks:           237513
    Unique aggregates announced from the RIPE address blocks:    138684
RIPE Region origin ASes present in the Internet Routing Table:    27688
    RIPE Prefixes per ASN:                                         8.58
RIPE Region origin ASes announcing only one prefix:               11891
RIPE Region transit ASes present in the Internet Routing Table:    3886
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:    9900
Number of RIPE addresses announced to Internet:               710007936
    Equivalent to 42 /8s, 81 /16s and 220 /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:                  112379
    Total LACNIC prefixes after maximum aggregation:              26364
    LACNIC Deaggregation factor:                                   4.26
Prefixes being announced from the LACNIC address blocks:         113519
    Unique aggregates announced from the LACNIC address blocks:   48246
LACNIC Region origin ASes present in the Internet Routing Table:  10652
    LACNIC Prefixes per ASN:                                      10.66
LACNIC Region origin ASes announcing only one prefix:              2616
LACNIC Region transit ASes present in the Internet Routing Table:  2001
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:  8251
Number of LACNIC addresses announced to Internet:             174110208
    Equivalent to 10 /8s, 96 /16s and 182 /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:                  25141
    Total AfriNIC prefixes after maximum aggregation:              4928
    AfriNIC Deaggregation factor:                                  5.10
Prefixes being announced from the AfriNIC address blocks:         31919
    Unique aggregates announced from the AfriNIC address blocks:   9922
AfriNIC Region origin ASes present in the Internet Routing Table:  1445
    AfriNIC Prefixes per ASN:                                     22.09
AfriNIC Region origin ASes announcing only one prefix:              498
AfriNIC Region transit ASes present in the Internet Routing Table:  288
Average AfriNIC Region AS path length visible:                      5.2
    Max AfriNIC Region AS path length visible:                       31
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  768
Number of AfriNIC addresses announced to Internet:            107872512
    Equivalent to 6 /8s, 110 /16s and 1 /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        5702        777     662  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4749       4192      74  ERX-CERNET-BKB China Education and Rese
  7552        3533       1330      19  VIETEL-AS-AP Viettel Group, VN
  7713        3222        935     524  TELKOMNET-AS-AP PT Telekomunikasi Indon
  9808        3176       9045      60  CMNET-GD Guangdong Mobile Communication
 45899        2886       1896      55  VNPT-AS-VN VNPT Corp, VN
  4766        2450      11105     570  KIXS-AS-KR Korea Telecom, KR
  9498        2306        482     231  BBIL-AP BHARTI Airtel Ltd., IN
  4755        2137        441     190  TATACOMM-AS TATA Communications formerl
 45090        2080       1045      63  CNNIC-TENCENT-NET-AP Shenzhen Tencent C

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

ARIN Region per AS prefix count summary
---------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
 16509        4807       9092    2163  AMAZON-02, US
 11492        4681        311     843  CABLEONE, US
  7155        4036        264      32  VIASAT-SP-BACKBONE, US
 22773        3833       2995     231  ASN-CXA-ALL-CCI-22773-RDC, US
  6327        3331       1317      72  SHAW, CA
 16625        3262       1706    2327  AKAMAI-AS, US
   209        2522       5058     506  CENTURYLINK-US-LEGACY-QWEST, US
 30036        2506        370     134  MEDIACOM-ENTERPRISE-BUSINESS, US
  5650        2355       3000    1642  FRONTIER-FRTR, US
  5972        2180        437     776  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        8060       1085    3249  TTNET, TR
 12479        6282       1700     146  UNI2-AS, ES
 39891        3459        195      22  ALJAWWALSTC-AS, SA
 20940        3403       3347     207  AKAMAI-ASN1, NL
  8551        3216        379      41  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 12389        2875       2282     890  ROSTELECOM-AS, RU
  9009        2323        234    1254  M247, GB
 34984        2175        354     581  TELLCOM-AS, TR
 13188        1611        100      23  TRIOLAN, UA
 58224        1508        870     551  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        8200       3405     593  Uninet S.A. de C.V., MX
 10620        3398        526     617  Telmex Colombia S.A., CO
 11830        2562        369      63  Instituto Costarricense de Electricidad
 13999        1625        432     422  Mega Cable, S.A. de C.V., MX
  7303        1439        913     262  Telecom Argentina S.A., AR
  6503        1437        311     475  Axtel, S.A.B. de C.V., MX
 28573        1374       2259     219  CLARO S.A., BR
  6147        1158        379      39  Telefonica del Peru S.A.A., PE
  3816        1144        563     143  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
 11664         996        211     414  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        1579        393      21  LINKdotNET-AS, EG
 24835        1293        484      28  RAYA-AS, EG
 36992        1185       1537     169  ETISALAT-MISR, EG
 36903         978        510     101  MT-MPLS, MA
 29571         702         68      11  ORANGE-COTE-IVOIRE, CI
  6713         533       1863      34  IAM-AS, MA
 36935         487        522      40  Vodafone-, EG
 37342         486         32       1  MOVITEL, MZ
 15399         483         46      18  WANANCHI-, KE
 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        8200       3405     593  Uninet S.A. de C.V., MX
 47331        8060       1085    3249  TTNET, TR
 12479        6282       1700     146  UNI2-AS, ES
  7545        5702        777     662  TPG-INTERNET-AP TPG Telecom Limited, AU
 16509        4807       9092    2163  AMAZON-02, US
  4538        4749       4192      74  ERX-CERNET-BKB China Education and Rese
 11492        4681        311     843  CABLEONE, US
  7155        4036        264      32  VIASAT-SP-BACKBONE, US
 22773        3833       2995     231  ASN-CXA-ALL-CCI-22773-RDC, US
  7552        3533       1330      19  VIETEL-AS-AP Viettel Group, VN

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        6282         6136  UNI2-AS, ES
  7545        5702         5040  TPG-INTERNET-AP TPG Telecom Limited, AU
 47331        8060         4811  TTNET, TR
  4538        4749         4675  ERX-CERNET-BKB China Education and Research Net
  7155        4036         4004  VIASAT-SP-BACKBONE, US
 11492        4681         3838  CABLEONE, US
 22773        3833         3602  ASN-CXA-ALL-CCI-22773-RDC, US
  7552        3533         3514  VIETEL-AS-AP Viettel Group, VN
 39891        3459         3437  ALJAWWALSTC-AS, SA
  6327        3331         3259  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
    393489  UNALLOCATED  12.7.109.0/24             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      /10:40      /11:102     /12:293     
/13:580     /14:1183    /15:1934    /16:13481   /17:8299    /18:13816   
/19:25675   /20:41641   /21:50911   /22:105018  /23:89450   /24:490778  
/25:1462    /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        7202        8060  TTNET, TR
 12479        5245        6282  UNI2-AS, ES
 11492        3765        4681  CABLEONE, US
  6327        3136        3331  SHAW, CA
  7155        3124        4036  VIASAT-SP-BACKBONE, US
 22773        2911        3833  ASN-CXA-ALL-CCI-22773-RDC, US
  8151        2805        8200  Uninet S.A. de C.V., MX
 39891        2801        3459  ALJAWWALSTC-AS, SA
  8551        2681        3216  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 30036        2228        2506  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      2:1194      3:88        4:25        5:3585      6:64     
   7:5         8:1490      9:1        11:36       12:1754     13:355    
  14:2438     15:74       16:15       17:313      18:94       20:115    
  22:188      23:4315     24:2373     25:3        27:2380     31:2194   
  32:112      34:2        35:39       36:1139     37:3629     38:2040   
  39:482      40:150      41:3901     42:895      43:2094     44:231    
  45:14850    46:3631     47:320      49:1612     50:1699     51:104    
  52:1203     54:218      55:779      56:6        57:57       58:1690   
  59:1163     60:820      61:2365     62:2224     63:1989     64:5233   
  65:2401     66:5135     67:2926     68:1169     69:4074     70:1399   
  71:687      72:3236     74:2576     75:1473     76:694      77:2015   
  78:3704     79:2464     80:1781     81:1641     82:1305     83:1116   
  84:1255     85:3280     86:647      87:1795     88:2825     89:3062   
  90:393      91:7251     92:1626     93:2524     94:2951     95:4444   
  96:1213     97:343      98:977      99:978     100:91      101:1041   
 102:1283    103:25260   104:3651    105:417     106:723     107:2199   
 108:675     109:3835    110:1998    111:2378    112:1760    113:1687   
 114:1427    115:1869    116:1893    117:2198    118:2303    119:1932   
 120:945     121:1082    122:2306    123:2173    124:1642    125:2158   
 128:1307    129:1177    130:797     131:2028    132:758     133:320    
 134:1557    135:288     136:716     137:891     138:2280    139:1163   
 140:742     141:1163    142:1060    143:1249    144:1217    145:327    
 146:1388    147:1221    148:2210    149:1256    150:748     151:1202   
 152:1552    153:455     154:2148    155:1276    156:1423    157:1165   
 158:925     159:2025    160:2048    161:1096    162:3238    163:987    
 164:1433    165:1302    166:597     167:1774    168:3557    169:645    
 170:4366    171:757     172:2059    173:2937    174:974     175:1065   
 176:2954    177:4395    178:2861    179:1868    180:2275    181:2612   
 182:3166    183:1668    184:2456    185:17812   186:4122    187:3051   
 188:3279    189:2745    190:9074    191:1374    192:10650   193:7921   
 194:6471    195:4628    196:3024    197:2342    198:6005    199:5969   
 200:7401    201:5293    202:10508   203:10114   204:4641    205:3264   
 206:3438    207:3317    208:3999    209:4599    210:4228    211:2172   
 212:3600    213:3284    214:1199    215:62      216:6162    217:2522   
 218:1019    219:681     220:2072    221:944     222:983     223:1746   


End of report



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