[menog] Weekly Global IPv4 Routing Table Report

Routing Table Analysis Role Account cscora at apnic.net
Fri Jun 2 18:03:50 UTC 2023


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 at lists.apnic.net.

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

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

IPv4 Routing Table Report   04:00 +10GMT Sat 03 Jun, 2023

  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:                              924953
    Prefixes after maximum aggregation (per Origin AS):          350297
    Deaggregation factor:                                          2.64
    Unique aggregates announced (without unneeded subnets):      450284
Total ASes present in the Internet Routing Table:                 74484
    Prefixes per ASN:                                             12.42
Origin-only ASes present in the Internet Routing Table:           63929
Origin ASes announcing only one prefix:                           26283
Transit ASes present in the Internet Routing Table:               10555
Transit-only ASes present in the Internet Routing Table:            440
Average AS path length visible in the Internet Routing Table:       4.3
    Max AS path length visible:                                      55
    Max AS path prepend of ASN (265020)                              50
Prefixes from unregistered ASNs in the Routing Table:              1055
    Number of instances of unregistered ASNs:                      1062
Number of 32-bit ASNs allocated by the RIRs:                      42004
Number of 32-bit ASNs visible in the Routing Table:               34658
Prefixes from 32-bit ASNs in the Routing Table:                  172526
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:            579
Number of addresses announced to Internet:                   3056305152
    Equivalent to 182 /8s, 43 /16s and 132 /24s
    Percentage of available address space announced:               82.6
    Percentage of allocated address space announced:               82.6
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               99.6
Total number of prefixes smaller than registry allocations:      308714

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

Prefixes being announced by APNIC Region ASes:                   246035
    Total APNIC prefixes after maximum aggregation:               69651
    APNIC Deaggregation factor:                                    3.53
Prefixes being announced from the APNIC address blocks:          240032
    Unique aggregates announced from the APNIC address blocks:    98413
APNIC Region origin ASes present in the Internet Routing Table:   13444
    APNIC Prefixes per ASN:                                       17.85
APNIC Region origin ASes announcing only one prefix:               3964
APNIC Region transit ASes present in the Internet Routing Table:   1798
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         26
Number of APNIC region 32-bit ASNs visible in the Routing Table:   8752
Number of APNIC addresses announced to Internet:              773473152
    Equivalent to 46 /8s, 26 /16s and 67 /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, 131072-153913
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:                    269929
    Total ARIN prefixes after maximum aggregation:               122853
    ARIN Deaggregation factor:                                     2.20
Prefixes being announced from the ARIN address blocks:           272782
    Unique aggregates announced from the ARIN address blocks:    130493
ARIN Region origin ASes present in the Internet Routing Table:    19126
    ARIN Prefixes per ASN:                                        14.26
ARIN Region origin ASes announcing only one prefix:                6989
ARIN Region transit ASes present in the Internet Routing Table:    1957
Average ARIN Region AS path length visible:                         3.7
    Max ARIN Region AS path length visible:                          24
Number of ARIN region 32-bit ASNs visible in the Routing Table:    4810
Number of ARIN addresses announced to Internet:              1280661248
    Equivalent to 76 /8s, 85 /16s and 87 /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:                    260152
    Total RIPE prefixes after maximum aggregation:               122631
    RIPE Deaggregation factor:                                     2.12
Prefixes being announced from the RIPE address blocks:           256119
    Unique aggregates announced from the RIPE address blocks:    158928
RIPE Region origin ASes present in the Internet Routing Table:    28330
    RIPE Prefixes per ASN:                                         9.04
RIPE Region origin ASes announcing only one prefix:               12062
RIPE Region transit ASes present in the Internet Routing Table:    3964
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:   11201
Number of RIPE addresses announced to Internet:               717836928
    Equivalent to 42 /8s, 201 /16s and 82 /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:                  118624
    Total LACNIC prefixes after maximum aggregation:              28554
    LACNIC Deaggregation factor:                                   4.15
Prefixes being announced from the LACNIC address blocks:         117802
    Unique aggregates announced from the LACNIC address blocks:   49523
LACNIC Region origin ASes present in the Internet Routing Table:  11014
    LACNIC Prefixes per ASN:                                      10.70
LACNIC Region origin ASes announcing only one prefix:              2655
LACNIC Region transit ASes present in the Internet Routing Table:  2290
Average LACNIC Region AS path length visible:                       5.0
    Max LACNIC Region AS path length visible:                        55
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  8799
Number of LACNIC addresses announced to Internet:             177029632
    Equivalent to 10 /8s, 141 /16s and 66 /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:                  29158
    Total AfriNIC prefixes after maximum aggregation:              5842
    AfriNIC Deaggregation factor:                                  4.99
Prefixes being announced from the AfriNIC address blocks:         37639
    Unique aggregates announced from the AfriNIC address blocks:  12452
AfriNIC Region origin ASes present in the Internet Routing Table:  1748
    AfriNIC Prefixes per ASN:                                     21.53
AfriNIC Region origin ASes announcing only one prefix:              613
AfriNIC Region transit ASes present in the Internet Routing Table:  337
Average AfriNIC Region AS path length visible:                      4.9
    Max AfriNIC Region AS path length visible:                       40
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1096
Number of AfriNIC addresses announced to Internet:            106908160
    Equivalent to 6 /8s, 95 /16s and 74 /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        9502       8706      40  CHINAMOBILE-CN China Mobile Communicati
  7545        5724        785     694  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4858       4192      75  ERX-CERNET-BKB China Education and Rese
 18403        4208        347      25  FPT-AS-AP FPT Telecom Company, VN
  7713        3572       1043      66  TELKOMNET-AS-AP PT Telekomunikasi Indon
 45899        3377       1856      95  VNPT-AS-VN VNPT Corp, VN
  7552        3372       1331      21  VIETEL-AS-AP Viettel Group, VN
  9498        3019        498     251  BBIL-AP BHARTI Airtel Ltd., IN
  4766        2546      11253     592  KIXS-AS-KR Korea Telecom, KR
 24560        2405        837     443  AIRTELBROADBAND-AS-AP Bharti Airtel Ltd

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        8312      10786    2994  AMAZON-02, US
 11492        4523        300     612  CABLEONE, US
  7155        4052        282      62  VIASAT-SP-BACKBONE, US
 22773        3568       3052     271  ASN-CXA-ALL-CCI-22773-RDC, US
  6327        3523       1319      66  SHAW, CA
   749        3128      54970    2380  DNIC-AS-00749, US
 16625        3086       1551    2335  AKAMAI-AS, US
396982        2660       3593     375  GOOGLE-CLOUD-PLATFORM, US
 30036        2504        360     419  MEDIACOM-ENTERPRISE-BUSINESS, US
  7018        2449      24003    1535  ATT-INTERNET4, 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        7301       1707     141  UNI2-AS, ES
 39891        4897        290      61  ALJAWWALSTC-AS, SA
 20940        4092       3398     161  AKAMAI-ASN1, NL
  8551        3876        369      34  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 12389        2950       2291     910  ROSTELECOM-AS, RU
  9009        2659        247    1389  M247, RO
 34984        2278        360     606  TELLCOM-AS, TR
  6849        1957        307      17  UKRTELNET, UA
 58224        1826        945     533  TCI, IR
 61317        1654        110    1279  ASDETUK www.heficed.com, US

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       11293       3356     605  Uninet S.A. de C.V., MX
 10620        3518        507     856  Telmex Colombia S.A., CO
 13999        2370        364     630  Mega Cable, S.A. de C.V., MX
 11830        2269        369      64  Instituto Costarricense de Electricidad
 28573        1331       2324     238  Claro NXT Telecomunicacoes Ltda, BR
  6503        1302        343     511  Axtel, S.A.B. de C.V., MX
  3816        1297        768     173  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
  6147        1134        370      22  Telefonica del Peru S.A.A., PE
 11664        1100        180     442  Techtel LMDS Comunicaciones Interactiva
 26615        1027       2498      45  TIM SA, BR

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        1573        393      19  LINKdotNET-AS, EG
 24835        1538        533      29  RAYA-AS, EG
 36992        1341       1518     275  ETISALAT-MISR, EG
 36903        1242        550      99  MT-MPLS, MA
 29571        1034         67      47  ORANGE-COTE-IVOIRE, CI
 36935         917        520      42  Vodafone-, EG
  6713         551       1861      34  IAM-AS, MA
 15399         529         54      49  WANANCHI-, KE
 24757         492         73       5  EthioNet-AS, ET
 37342         482         32       1  MOVITEL, MZ

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       11293       3356     605  Uninet S.A. de C.V., MX
  9808        9502       8706      40  CHINAMOBILE-CN China Mobile Communicati
 16509        8312      10786    2994  AMAZON-02, US
 12479        7301       1707     141  UNI2-AS, ES
  7545        5724        785     694  TPG-INTERNET-AP TPG Telecom Limited, AU
 39891        4897        290      61  ALJAWWALSTC-AS, SA
  4538        4858       4192      75  ERX-CERNET-BKB China Education and Rese
 11492        4523        300     612  CABLEONE, US
 18403        4208        347      25  FPT-AS-AP FPT Telecom Company, VN
 20940        4092       3398     161  AKAMAI-ASN1, NL

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

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

   ASN  No of nets  Net Savings  Description
  9808        9502         9462  CHINAMOBILE-CN China Mobile Communications Grou
 12479        7301         7160  UNI2-AS, ES
 16509        8312         5318  AMAZON-02, US
  7545        5724         5030  TPG-INTERNET-AP TPG Telecom Limited, AU
 39891        4897         4836  ALJAWWALSTC-AS, SA
  4538        4858         4783  ERX-CERNET-BKB China Education and Research Net
 18403        4208         4183  FPT-AS-AP FPT Telecom Company, VN
  7155        4052         3990  VIASAT-SP-BACKBONE, US
 20940        4092         3931  AKAMAI-ASN1, NL
 11492        4523         3911  CABLEONE, US

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
      3507  UNALLOCATED  2.57.241.0/24           213035  AS-SERVERION Serverion B.V.,
      3507  UNALLOCATED  5.105.49.0/24           213035  AS-SERVERION Serverion B.V.,
      3507  UNALLOCATED  5.105.69.0/24           213035  AS-SERVERION Serverion B.V.,
      3507  UNALLOCATED  5.105.206.0/24          213035  AS-SERVERION Serverion B.V.,
     33492  UNALLOCATED  8.6.184.0/23             33650  COMCAST-33650, US
     33123  UNALLOCATED  8.10.69.0/24             11168  SCC, US
     12169  UNALLOCATED  8.15.207.0/24            32787  PROLEXIC-TECHNOLOGIES-DDOS-M
     53775  UNALLOCATED  8.20.88.0/24              7029  WINDSTREAM, US
     62828  UNALLOCATED  8.21.130.0/24             3356  LEVEL3, US
    393266  UNALLOCATED  8.23.52.0/24             46887  LIGHTOWER, 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
23.139.232.0/24      Origin:    211619  MAXKO, HR
23.139.232.0/24     Transit:     42864  GIGANET-HU GigaNet Internet Service Prov
23.140.216.0/24      Origin:     27176  DATAWAGON, US
23.140.216.0/24     Transit:     20278  NEXEON, US
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

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       /9:14      /10:39      /11:103     /12:301     
/13:582     /14:1198    /15:2064    /16:13472   /17:8236    /18:13846   
/19:25099   /20:44060   /21:51401   /22:109902  /23:98322   /24:555549  
/25:749     /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
 12479        6385        7301  UNI2-AS, ES
  8151        5282       11293  Uninet S.A. de C.V., MX
 39891        3632        4897  ALJAWWALSTC-AS, SA
 11492        3432        4523  CABLEONE, US
  8551        3349        3876  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
  6327        3333        3523  SHAW, CA
  7155        3067        4052  VIASAT-SP-BACKBONE, US
 22773        2633        3568  ASN-CXA-ALL-CCI-22773-RDC, US
 30036        2160        2504  MEDIACOM-ENTERPRISE-BUSINESS, US
 10620        2073        3518  Telmex Colombia S.A., CO

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

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

   1:2181      2:1244      3:180       4:5         5:4540      6:132    
   7:6         8:1549      9:1        11:172      12:1534     13:377    
  14:2310     15:304      16:193      17:371      18:436      20:263    
  21:4        22:188      23:6301     24:2606     25:6        27:2471   
  29:19       31:2498     32:82       34:21       35:112      36:1968   
  37:4657     38:4748     39:845      40:151      41:3903     42:1989   
  43:2366     44:305      45:16545    46:4348     47:375      49:1766   
  50:1872     51:585      52:1588     54:393      55:858      56:8      
  57:116      58:1889     59:1107     60:987      61:2516     62:2690   
  63:1922     64:5671     65:2311     66:5030     67:2980     68:1344   
  69:4136     70:1206     71:670      72:2997     74:2621     75:1558   
  76:610      77:2438     78:1826     79:3186     80:2130     81:1796   
  82:1490     83:1265     84:1540     85:3012     86:772      87:2032   
  88:1177     89:3684     90:614      91:7767     92:2063     93:2618   
  94:3619     95:4046     96:1309     97:336      98:1114     99:745    
 100:79      101:1084    102:2727    103:31411   104:4619    105:504    
 106:950     107:2587    108:1037    109:4404    110:2094    111:3169   
 112:2038    113:1805    114:1651    115:2002    116:1911    117:2509   
 118:2627    119:2016    120:1826    121:1134    122:2599    123:2176   
 124:1614    125:2505    128:1475    129:1059    130:1013    131:1989   
 132:819     133:420     134:1874    135:306     136:882     137:951    
 138:2558    139:1561    140:1244    141:1417    142:1453    143:1525   
 144:1151    145:347     146:1947    147:1590    148:2422    149:2246   
 150:879     151:1150    152:1813    153:488     154:4538    155:1447   
 156:1821    157:1322    158:1082    159:2227    160:2554    161:1549   
 162:3517    163:1530    164:1622    165:1780    166:1123    167:1735   
 168:3874    169:950     170:4610    171:899     172:3578    173:2968   
 174:1062    175:1175    176:3704    177:4684    178:3577    179:2235   
 180:2519    181:3487    182:3433    183:2085    184:2339    185:20308  
 186:4790    187:3993    188:4120    189:3649    190:9201    191:1476   
 192:10932   193:8884    194:7317    195:5161    196:3080    197:2379   
 198:5970    199:6109    200:8055    201:5914    202:10709   203:10307  
 204:4566    205:3712    206:4281    207:3458    208:4101    209:4911   
 210:4444    211:2529    212:4183    213:3629    214:1077    215:59     
 216:6655    217:2717    218:1292    219:580     220:1997    221:969    
 222:855     223:2181   

End of report


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