[lacnog] Weekly Global IPv4 Routing Table Report

Routing Table Analysis Role Account cscora en apnic.net
Vie Mar 11 15:02:57 -03 2022


This is an automated weekly mailing describing the state of the Global
IPv4 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 en lists.apnic.net.

For historical data, please see https://thyme.apnic.net.

If you have any comments please contact Philip Smith <pfsinoz en gmail.com>.

IPv4 Routing Table Report   04:00 +10GMT Sat 12 Mar, 2022

  BGP Table (Global) as seen in Japan.

Report Website:     https://thyme.apnic.net
Detailed Analysis:  https://thyme.apnic.net/current/

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

BGP routing table entries examined:                              892760
    Prefixes after maximum aggregation (per Origin AS):          335982
    Deaggregation factor:                                          2.66
    Unique aggregates announced (without unneeded subnets):      428829
Total ASes present in the Internet Routing Table:                 72817
    Prefixes per ASN:                                             12.26
Origin-only ASes present in the Internet Routing Table:           62477
Origin ASes announcing only one prefix:                           25673
Transit ASes present in the Internet Routing Table:               10340
Transit-only ASes present in the Internet Routing Table:            383
Average AS path length visible in the Internet Routing Table:       4.3
    Max AS path length visible:                                      53
    Max AS path prepend of ASN (265020)                              50
Prefixes from unregistered ASNs in the Routing Table:               935
    Number of instances of unregistered ASNs:                       938
Number of 32-bit ASNs allocated by the RIRs:                      38762
Number of 32-bit ASNs visible in the Routing Table:               32261
Prefixes from 32-bit ASNs in the Routing Table:                  151001
Number of bogon 32-bit ASNs visible in the Routing Table:            24
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            527
Number of addresses announced to Internet:                   3068579968
    Equivalent to 182 /8s, 230 /16s and 208 /24s
    Percentage of available address space announced:               82.9
    Percentage of allocated address space announced:               82.9
    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:      303160

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

Prefixes being announced by APNIC Region ASes:                   233372
    Total APNIC prefixes after maximum aggregation:               66144
    APNIC Deaggregation factor:                                    3.53
Prefixes being announced from the APNIC address blocks:          228376
    Unique aggregates announced from the APNIC address blocks:    94526
APNIC Region origin ASes present in the Internet Routing Table:   12459
    APNIC Prefixes per ASN:                                       18.33
APNIC Region origin ASes announcing only one prefix:               3550
APNIC Region transit ASes present in the Internet Routing Table:   1723
Average APNIC Region AS path length visible:                        4.6
    Max APNIC Region AS path length visible:                         29
Number of APNIC region 32-bit ASNs visible in the Routing Table:   7662
Number of APNIC addresses announced to Internet:              774176768
    Equivalent to 46 /8s, 37 /16s and 0 /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, 131072-151865
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:                    260476
    Total ARIN prefixes after maximum aggregation:               119468
    ARIN Deaggregation factor:                                     2.18
Prefixes being announced from the ARIN address blocks:           260455
    Unique aggregates announced from the ARIN address blocks:    123999
ARIN Region origin ASes present in the Internet Routing Table:    18970
    ARIN Prefixes per ASN:                                        13.73
ARIN Region origin ASes announcing only one prefix:                6883
ARIN Region transit ASes present in the Internet Routing Table:    1967
Average ARIN Region AS path length visible:                         3.8
    Max ARIN Region AS path length visible:                          28
Number of ARIN region 32-bit ASNs visible in the Routing Table:    4385
Number of ARIN addresses announced to Internet:              1295718912
    Equivalent to 77 /8s, 59 /16s and 26 /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:                    255917
    Total RIPE prefixes after maximum aggregation:               116864
    RIPE Deaggregation factor:                                     2.19
Prefixes being announced from the RIPE address blocks:           253109
    Unique aggregates announced from the RIPE address blocks:    149852
RIPE Region origin ASes present in the Internet Routing Table:    28083
    RIPE Prefixes per ASN:                                         9.01
RIPE Region origin ASes announcing only one prefix:               12050
RIPE Region transit ASes present in the Internet Routing Table:    3960
Average RIPE Region AS path length visible:                         4.3
    Max RIPE Region AS path length visible:                          31
Number of RIPE region 32-bit ASNs visible in the Routing Table:   10650
Number of RIPE addresses announced to Internet:               714185600
    Equivalent to 42 /8s, 145 /16s and 155 /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:                  114404
    Total LACNIC prefixes after maximum aggregation:              27401
    LACNIC Deaggregation factor:                                   4.18
Prefixes being announced from the LACNIC address blocks:         114406
    Unique aggregates announced from the LACNIC address blocks:   48173
LACNIC Region origin ASes present in the Internet Routing Table:  10932
    LACNIC Prefixes per ASN:                                      10.47
LACNIC Region origin ASes announcing only one prefix:              2638
LACNIC Region transit ASes present in the Internet Routing Table:  2207
Average LACNIC Region AS path length visible:                       4.9
    Max LACNIC Region AS path length visible:                        53
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  8627
Number of LACNIC addresses announced to Internet:             176305920
    Equivalent to 10 /8s, 130 /16s and 55 /24s
LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 64099-64197, 262144-273820 + 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:                  27656
    Total AfriNIC prefixes after maximum aggregation:              5413
    AfriNIC Deaggregation factor:                                  5.11
Prefixes being announced from the AfriNIC address blocks:         35887
    Unique aggregates announced from the AfriNIC address blocks:  11840
AfriNIC Region origin ASes present in the Internet Routing Table:  1603
    AfriNIC Prefixes per ASN:                                     22.39
AfriNIC Region origin ASes announcing only one prefix:              552
AfriNIC Region transit ASes present in the Internet Routing Table:  322
Average AfriNIC Region AS path length visible:                      5.2
    Max AfriNIC Region AS path length visible:                       34
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  937
Number of AfriNIC addresses announced to Internet:            107850240
    Equivalent to 6 /8s, 109 /16s and 170 /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        9104       8886      46  CHINAMOBILE-CN China Mobile Communicati
  7545        5881        788     692  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4676       4192      74  ERX-CERNET-BKB China Education and Rese
  7552        3603       1330      19  VIETEL-AS-AP Viettel Group, VN
  7713        3491       1038      51  TELKOMNET-AS-AP PT Telekomunikasi Indon
 45899        3435       1880      56  VNPT-AS-VN VNPT Corp, VN
  4766        2545      11122     623  KIXS-AS-KR Korea Telecom, KR
  9498        2385        475     238  BBIL-AP BHARTI Airtel Ltd., IN
 45090        2169       1438      79  TENCENT-NET-AP Shenzhen Tencent Compute
  4755        2109        429     197  TATACOMM-AS TATA Communications formerl

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
 16509        6367      10249    2644  AMAZON-02, US
 11492        4448        295     738  CABLEONE, US
 22773        3946       3061     369  ASN-CXA-ALL-CCI-22773-RDC, US
  7155        3895        263      26  VIASAT-SP-BACKBONE, US
 16625        3652       1882    2573  AKAMAI-AS, US
  6327        3401       1318      62  SHAW, CA
   749        2884      50780    2140  DNIC-AS-00749, US
 30036        2613        374     136  MEDIACOM-ENTERPRISE-BUSINESS, US
   209        2513       4962     426  CENTURYLINK-US-LEGACY-QWEST, US
 20115        2256       3042     499  CHARTER-20115, US

Complete listing at https://thyme.apnic.net/current/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
 12479        6803       1730     149  UNI2-AS, ES
  9121        6698       1692      17  TTNET, TR
  8551        4014        378      39  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 20940        3935       3348     214  AKAMAI-ASN1, NL
 39891        3818        220      33  ALJAWWALSTC-AS, SA
 12389        2959       2274     909  ROSTELECOM-AS, RU
  6849        2828        355      21  UKRTELNET, UA
  9009        2470        250    1288  M247, GB
 34984        2239        359     614  TELLCOM-AS, TR
 47331        2069        328    1583  TTNET, TR

Complete listing at https://thyme.apnic.net/current/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
  8151       10455       3427     554  Uninet S.A. de C.V., MX
 10620        3468        518     715  Telmex Colombia S.A., CO
 11830        2429        369      62  Instituto Costarricense de Electricidad
 13999        1706        291     473  Mega Cable, S.A. de C.V., MX
  6503        1441        354     524  Axtel, S.A.B. de C.V., MX
 28573        1396       2332     248  CLARO S.A., BR
  3816        1254        666     146  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
 26615        1133       2349     136  TIM SA, BR
  6147        1092        369      21  Telefonica del Peru S.A.A., PE
 11664        1008        192     447  Techtel LMDS Comunicaciones Interactiva

Complete listing at https://thyme.apnic.net/current/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
 24863        1588        393      21  LINKdotNET-AS, EG
 24835        1545        523      32  RAYA-AS, EG
 36992        1300       1518     262  ETISALAT-MISR, EG
 36903        1199        545     114  MT-MPLS, MA
 29571         908         64      62  ORANGE-COTE-IVOIRE, CI
 36935         729        521      40  Vodafone-, EG
  6713         613       1863      34  IAM-AS, MA
 15399         517         51      34  WANANCHI-, KE
 37342         469         32       1  MOVITEL, MZ
 23889         421        232      15  MauritiusTelecom, MU

Complete listing at https://thyme.apnic.net/current/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
  8151       10455       3427     554  Uninet S.A. de C.V., MX
  9808        9104       8886      46  CHINAMOBILE-CN China Mobile Communicati
 12479        6803       1730     149  UNI2-AS, ES
  9121        6698       1692      17  TTNET, TR
 16509        6367      10249    2644  AMAZON-02, US
  7545        5881        788     692  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4676       4192      74  ERX-CERNET-BKB China Education and Rese
 11492        4448        295     738  CABLEONE, US
  8551        4014        378      39  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 22773        3946       3061     369  ASN-CXA-ALL-CCI-22773-RDC, US

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

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

   ASN  No of nets  Net Savings  Description
  9808        9104         9058  CHINAMOBILE-CN China Mobile Communications Grou
  9121        6698         6681  TTNET, TR
 12479        6803         6654  UNI2-AS, ES
  7545        5881         5189  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4676         4602  ERX-CERNET-BKB China Education and Research Net
  8551        4014         3975  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
  7155        3895         3869  VIASAT-SP-BACKBONE, US
 39891        3818         3785  ALJAWWALSTC-AS, SA
 16509        6367         3723  AMAZON-02, US
 20940        3935         3721  AKAMAI-ASN1, NL

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

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

    Bad AS  Designation  Net Originated      Transit AS  Transit AS Name
    398083  UNALLOCATED  5.133.124.0/24          399587  UT, US
     33123  UNALLOCATED  8.10.69.0/24             11168  SCC, US
     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            22442  HOU-PHONOSCOPE, US
     54338  UNALLOCATED  8.33.241.0/24             6461  ZAYO-6461, US
    395438  UNALLOCATED  8.42.206.0/24             3356  LEVEL3, US
    395056  UNALLOCATED  8.45.133.0/24             3356  LEVEL3, US
     32306  UNALLOCATED  8.46.80.0/24             33652  CMCS, US

Complete listing at https://thyme.apnic.net/current/data-badAS

Prefixes from the Special Purpose Address Registry (Global)
-----------------------------------------------------------

Prefix                Origin AS  Description
192.88.99.0/24             6939  HURRICANE, US

Complete listing at https://thyme.apnic.net/current/data-spar

Advertised Unallocated Addresses
--------------------------------

Unassigned Network     ASN Information  AS Name
23.141.0.0/24        Origin:    395350  UNASSIGNED
23.141.0.0/24       Transit:     11426  TWC-11426-CAROLINAS, US
27.100.7.0/24        Origin:     56096  UNASSIGNED
27.100.7.0/24       Transit:     45455  TH-2S1N-AP Two S One N Co Ltd, Internet 
41.57.124.0/22       Origin:     37442  UNASSIGNED
41.57.124.0/22      Transit:     37204  TELONE, ZW
41.57.124.0/23       Origin:     37442  UNASSIGNED
41.57.124.0/23      Transit:     37204  TELONE, ZW
41.57.124.0/24       Origin:     37442  UNASSIGNED
41.57.124.0/24      Transit:     37204  TELONE, ZW

Complete listing at https://thyme.apnic.net/current/data-add-IANA

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

 /1:0        /2:0        /3:0        /4:0        /5:0        /6:0       
 /7:0        /8:16       /9:13      /10:40      /11:102     /12:305     
/13:589     /14:1205    /15:2034    /16:13584   /17:8326    /18:13921   
/19:25184   /20:43225   /21:52430   /22:108288  /23:95464   /24:527238  
/25:796     /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
  9121        5848        6698  TTNET, TR
 12479        5784        6803  UNI2-AS, ES
  8151        4111       10455  Uninet S.A. de C.V., MX
  8551        3479        4014  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 11492        3361        4448  CABLEONE, US
  6327        3213        3401  SHAW, CA
 39891        3130        3818  ALJAWWALSTC-AS, SA
  7155        2988        3895  VIASAT-SP-BACKBONE, US
 22773        2936        3946  ASN-CXA-ALL-CCI-22773-RDC, US
  6849        2683        2828  UKRTELNET, UA

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

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

   1:1720      2:1060      3:154       4:7         5:3784      6:112    
   7:5         8:1558      9:1        11:172      12:1714     13:305    
  14:2392     15:176      16:42       17:376      18:146      20:183    
  21:4        22:188      23:5517     24:2333     25:6        27:2605   
  29:19       31:2420     32:96       34:1        35:64       36:1749   
  37:4361     38:2603     39:696      40:150      41:3946     42:846    
  43:2100     44:297      45:16063    46:4127     47:347      49:1685   
  50:1925     51:107      52:1374     53:1        54:328      55:760    
  56:8        57:58       58:1771     59:1199     60:966      61:2264   
  62:2455     63:1945     64:5493     65:2307     66:4867     67:2951   
  68:1195     69:4156     70:1352     71:670      72:3075     74:2639   
  75:1517     76:716      77:2108     78:3874     79:3105     80:1951   
  81:1688     82:1476     83:1215     84:1346     85:3639     86:720    
  87:1952     88:2656     89:3244     90:516      91:7611     92:2005   
  93:2584     94:3496     95:4782     96:1314     97:347      98:988    
  99:866     100:75      101:1035    102:1969    103:28539   104:4259   
 105:461     106:851     107:2506    108:796     109:4193    110:2073   
 111:3278    112:2007    113:1495    114:1492    115:1957    116:1893   
 117:2481    118:2251    119:1860    120:1673    121:1060    122:2557   
 123:2112    124:1614    125:2107    128:1198    129:1188    130:922    
 131:2072    132:754     133:373     134:1932    135:290     136:876    
 137:871     138:2437    139:1239    140:1138    141:1382    142:1277   
 143:1490    144:1237    145:344     146:1765    147:1497    148:2210   
 149:1714    150:854     151:1082    152:1829    153:456     154:3626   
 155:1434    156:1879    157:1238    158:1025    159:2073    160:2411   
 161:1320    162:3455    163:1226    164:1667    165:1602    166:675    
 167:1719    168:3730    169:694     170:4425    171:823     172:3044   
 173:3079    174:1021    175:1128    176:3498    177:4593    178:3440   
 179:1984    180:2275    181:2934    182:3249    183:1944    184:2389   
 185:19382   186:4312    187:3674    188:3856    189:3098    190:8860   
 191:1310    192:11053   193:8551    194:6957    195:4967    196:2944   
 197:2352    198:5999    199:6006    200:7498    201:5666    202:10445  
 203:9981    204:4563    205:3384    206:3778    207:3387    208:4057   
 209:4652    210:4252    211:2446    212:4002    213:3388    214:1161   
 215:66      216:6432    217:2632    218:1246    219:596     220:1949   
 221:984     222:847     223:2172   

End of report


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