[cmNOG] Weekly Global IPv4 Routing Table Report

Routing Table Analysis Role Account cscora at apnic.net
Fri Jan 5 18:02:24 UTC 2024


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
UKNOF, 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 06 Jan, 2024

  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:                              937592
    Prefixes after maximum aggregation (per Origin AS):          357849
    Deaggregation factor:                                          2.62
    Unique aggregates announced (without unneeded subnets):      456342
Total ASes present in the Internet Routing Table:                 75212
    Prefixes per ASN:                                             12.47
Origin-only ASes present in the Internet Routing Table:           64521
Origin ASes announcing only one prefix:                           26564
Transit ASes present in the Internet Routing Table:               10691
Transit-only ASes present in the Internet Routing Table:            493
Average AS path length visible in the Internet Routing Table:       4.3
    Max AS path length visible:                                      66
    Max AS path prepend of ASN (272886)                              61
Prefixes from unregistered ASNs in the Routing Table:              1112
    Number of instances of unregistered ASNs:                      1114
Number of 32-bit ASNs allocated by the RIRs:                      43316
Number of 32-bit ASNs visible in the Routing Table:               35614
Prefixes from 32-bit ASNs in the Routing Table:                  179632
Number of bogon 32-bit ASNs visible in the Routing Table:            32
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            482
Number of addresses announced to Internet:                   3048811264
    Equivalent to 181 /8s, 185 /16s and 43 /24s
    Percentage of available address space announced:               82.4
    Percentage of allocated address space announced:               82.4
    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:      309431

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

Prefixes being announced by APNIC Region ASes:                   251118
    Total APNIC prefixes after maximum aggregation:               72502
    APNIC Deaggregation factor:                                    3.46
Prefixes being announced from the APNIC address blocks:          244085
    Unique aggregates announced from the APNIC address blocks:    99680
APNIC Region origin ASes present in the Internet Routing Table:   13870
    APNIC Prefixes per ASN:                                       17.60
APNIC Region origin ASes announcing only one prefix:               4166
APNIC Region transit ASes present in the Internet Routing Table:   1873
Average APNIC Region AS path length visible:                        4.4
    Max APNIC Region AS path length visible:                         34
Number of APNIC region 32-bit ASNs visible in the Routing Table:   9220
Number of APNIC addresses announced to Internet:              774693504
    Equivalent to 46 /8s, 44 /16s and 226 /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:                    274378
    Total ARIN prefixes after maximum aggregation:               124616
    ARIN Deaggregation factor:                                     2.20
Prefixes being announced from the ARIN address blocks:           279300
    Unique aggregates announced from the ARIN address blocks:    133020
ARIN Region origin ASes present in the Internet Routing Table:    19084
    ARIN Prefixes per ASN:                                        14.64
ARIN Region origin ASes announcing only one prefix:                6955
ARIN Region transit ASes present in the Internet Routing Table:    1950
Average ARIN Region AS path length visible:                         3.7
    Max ARIN Region AS path length visible:                          25
Number of ARIN region 32-bit ASNs visible in the Routing Table:    4828
Number of ARIN addresses announced to Internet:              1273895424
    Equivalent to 75 /8s, 238 /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:                    260529
    Total RIPE prefixes after maximum aggregation:               125124
    RIPE Deaggregation factor:                                     2.08
Prefixes being announced from the RIPE address blocks:           254988
    Unique aggregates announced from the RIPE address blocks:    160949
RIPE Region origin ASes present in the Internet Routing Table:    28498
    RIPE Prefixes per ASN:                                         8.95
RIPE Region origin ASes announcing only one prefix:               12125
RIPE Region transit ASes present in the Internet Routing Table:    3933
Average RIPE Region AS path length visible:                         4.4
    Max RIPE Region AS path length visible:                          37
Number of RIPE region 32-bit ASNs visible in the Routing Table:   11503
Number of RIPE addresses announced to Internet:               714299776
    Equivalent to 42 /8s, 147 /16s and 89 /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
                       196608-216475
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:                  119919
    Total LACNIC prefixes after maximum aggregation:              28844
    LACNIC Deaggregation factor:                                   4.16
Prefixes being announced from the LACNIC address blocks:         118690
    Unique aggregates announced from the LACNIC address blocks:   49478
LACNIC Region origin ASes present in the Internet Routing Table:  11055
    LACNIC Prefixes per ASN:                                      10.74
LACNIC Region origin ASes announcing only one prefix:              2672
LACNIC Region transit ASes present in the Internet Routing Table:  2368
Average LACNIC Region AS path length visible:                       4.9
    Max LACNIC Region AS path length visible:                        66
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  8905
Number of LACNIC addresses announced to Internet:             177768960
    Equivalent to 10 /8s, 152 /16s and 138 /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:                  30536
    Total AfriNIC prefixes after maximum aggregation:              6047
    AfriNIC Deaggregation factor:                                  5.05
Prefixes being announced from the AfriNIC address blocks:         40047
    Unique aggregates announced from the AfriNIC address blocks:  12817
AfriNIC Region origin ASes present in the Internet Routing Table:  1818
    AfriNIC Prefixes per ASN:                                     22.03
AfriNIC Region origin ASes announcing only one prefix:              646
AfriNIC Region transit ASes present in the Internet Routing Table:  352
Average AfriNIC Region AS path length visible:                      4.9
    Max AfriNIC Region AS path length visible:                       27
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1158
Number of AfriNIC addresses announced to Internet:            107835136
    Equivalent to 6 /8s, 109 /16s and 111 /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        9818       8740      56  CHINAMOBILE-CN China Mobile Communicati
  7545        5677        784     687  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4925       4192      75  ERX-CERNET-BKB China Education and Rese
 18403        4548        347      25  FPT-AS-AP FPT Telecom Company, VN
  7552        3825       1330      20  VIETEL-AS-AP Viettel Group, VN
  7713        3605       1043      64  TELKOMNET-AS-AP PT Telekomunikasi Indon
  9498        3417        498     254  BBIL-AP BHARTI Airtel Ltd., IN
 45899        3269       1872      99  VNPT-AS-VN VNPT Corp, VN
 24560        2665        857     379  AIRTELBROADBAND-AS-AP Bharti Airtel Ltd
  4766        2324      11258     578  KIXS-AS-KR Korea Telecom, KR

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        9437      11194    3356  AMAZON-02, US
 11492        4563        303     680  CABLEONE, US
  7155        4177        288      96  VIASAT-SP-BACKBONE, US
  6327        3568       1320      70  SHAW, CA
 22773        3516       3059     303  ASN-CXA-ALL-CCI-22773-RDC, US
 16625        3217       1426    2336  AKAMAI-AS, US
   749        3161      54929    2413  DNIC-AS-00749, US
   367        2955       3836    1416  DNIC-ASBLK-00306-00371, US
396982        2744       3639     389  GOOGLE-CLOUD-PLATFORM, US
  7018        2503      23622    1573  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        5755       1714     146  UNI2-AS, ES
 39891        4641        279      54  ALJAWWALSTC-AS, SA
 20940        4011       3397     142  AKAMAI-ASN1, NL
  9009        3464        298    1626  M247, RO
  8551        3145        368      34  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 12389        2993       2301     912  ROSTELECOM-AS, RU
 34984        2324        359     598  TELLCOM-AS, TR
 13188        1607        100      26  TRIOLAN, UA
 58224        1511        872     577  TCI, IR
  8452        1471       1852      14  TE-AS TE-AS, EG

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       12175       3384     590  UNINET, MX
 10620        3523        497     888  Telmex Colombia S.A., CO
 13999        2496        340     638  Mega Cable, S.A. de C.V., MX
 11830        2006        369      64  Instituto Costarricense de Electricidad
 28573        1345       2318     237  Claro NXT Telecomunicacoes Ltda, BR
  3816        1306        787     197  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
  6503        1245        341     503  Axtel, S.A.B. de C.V., MX
 11664        1109        178     419  Techtel LMDS Comunicaciones Interactiva
  6147        1088        369      22  Telefonica del Peru S.A.A., PE
 22884        1074        116     375  TOTAL PLAY TELECOMUNICACIONES SA DE CV,

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
 24835        1543        545      28  RAYA-AS, EG
 24863        1531        389      16  LINKdotNET-AS, EG
 36992        1361       1518     280  ETISALAT-MISR, EG
 36903        1249        554      96  MT-MPLS, MA
 29571        1072         69      53  ORANGE-COTE-IVOIRE, CI
 36935         936        521      43  Vodafone-, EG
  6713         551       1861      34  IAM-AS, MA
 15399         543         56      55  WANANCHI-, KE
 36914         506         82       3  KENET-AS, KE
 37342         481         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       12175       3384     590  UNINET, MX
  9808        9818       8740      56  CHINAMOBILE-CN China Mobile Communicati
 16509        9437      11194    3356  AMAZON-02, US
 12479        5755       1714     146  UNI2-AS, ES
  7545        5677        784     687  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4925       4192      75  ERX-CERNET-BKB China Education and Rese
 39891        4641        279      54  ALJAWWALSTC-AS, SA
 11492        4563        303     680  CABLEONE, US
 18403        4548        347      25  FPT-AS-AP FPT Telecom Company, VN
  7155        4177        288      96  VIASAT-SP-BACKBONE, 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        9818         9762  CHINAMOBILE-CN China Mobile Communications Grou
 16509        9437         6081  AMAZON-02, US
 12479        5755         5609  UNI2-AS, ES
  7545        5677         4990  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4925         4850  ERX-CERNET-BKB China Education and Research Net
 39891        4641         4587  ALJAWWALSTC-AS, SA
 18403        4548         4523  FPT-AS-AP FPT Telecom Company, VN
  7155        4177         4081  VIASAT-SP-BACKBONE, US
 11492        4563         3883  CABLEONE, US
 20940        4011         3869  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
     65536  DOCUMENT     5.102.30.0/24            65512  -Private Use AS-, ZZ
     33492  UNALLOCATED  8.6.184.0/23             33650  COMCAST-33650, US
     33123  UNALLOCATED  8.10.69.0/24               174  COGENT-174, US
     12169  UNALLOCATED  8.15.207.0/24            32787  PROLEXIC-TECHNOLOGIES-DDOS-M
     40493  UNALLOCATED  8.17.26.0/24              3356  LEVEL3, US
     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
    396894  UNALLOCATED  8.28.201.0/24            46887  LIGHTOWER, US
    394936  UNALLOCATED  8.33.224.0/24            22442  HOU-PHONOSCOPE, 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
23.140.216.0/24      Origin:     27176  DATAWAGON, US
23.140.216.0/24     Transit:     20278  NEXEON, US
23.141.0.0/24        Origin:    395350  RESERVED, ZZ
23.141.0.0/24       Transit:     11426  TWC-11426-CAROLINAS, US
23.176.160.0/24      Origin:    397327  RESERVED, ZZ
23.176.160.0/24     Transit:     19108  SUDDENLINK-COMMUNICATIONS, US
23.189.192.0/24      Origin:     27593  RESERVED, ZZ
23.189.192.0/24     Transit:       174  COGENT-174, US
36.255.139.0/24      Origin:     56050  NEW-SHINE-INTERNET-TH 134 Yenchit Road, 
36.255.139.0/24     Transit:     58913  HCL-TH 4819 Supapong 3 Alley, Srinakarin

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      /10:37      /11:99      /12:301     
/13:581     /14:1194    /15:2065    /16:13440   /17:8264    /18:13817   
/19:25082   /20:44416   /21:51742   /22:109855  /23:99801   /24:566141  
/25:727     /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
  8151        6182       12175  UNINET, MX
 12479        5057        5755  UNI2-AS, ES
 11492        3477        4563  CABLEONE, US
  6327        3372        3568  SHAW, CA
 39891        3324        4641  ALJAWWALSTC-AS, SA
  7155        3121        4177  VIASAT-SP-BACKBONE, US
  8551        2622        3145  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 22773        2555        3516  ASN-CXA-ALL-CCI-22773-RDC, US
 10620        2126        3523  Telmex Colombia S.A., CO
 30036        2121        2465  MEDIACOM-ENTERPRISE-BUSINESS, US

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

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

   1:2312      2:1414      3:281       4:5         5:4421      6:165    
   7:6         8:1531      9:1        11:172      12:1487     13:375    
  14:2339     15:309      16:206      17:363      18:711      20:344    
  21:4        22:188      23:6590     24:2678     25:2        27:2503   
  29:19       31:2537     32:56       34:35       35:121      36:2141   
  37:4483     38:5836     39:884      40:147      41:4138     42:2212   
  43:2327     44:325      45:16687    46:4294     47:286      49:1910   
  50:1892     51:574      52:1590     54:368      55:893      56:5      
  57:129      58:1924     59:1172     60:1012     61:2567     62:2753   
  63:1905     64:5494     65:2338     66:5005     67:3043     68:1337   
  69:4085     70:1179     71:573      72:2922     74:2647     75:1559   
  76:626      77:2341     78:1829     79:2891     80:2114     81:1860   
  82:1522     83:1323     84:1624     85:2857     86:780      87:1971   
  88:1230     89:3950     90:399      91:7905     92:2177     93:2632   
  94:3593     95:3997     96:1288     97:315      98:1015     99:744    
 100:94      101:1158    102:3019    103:32556   104:4775    105:601    
 106:983     107:2740    108:1123    109:4072    110:2140    111:3215   
 112:2087    113:1793    114:1753    115:1997    116:1984    117:2630   
 118:2773    119:1943    120:1806    121:1312    122:2646    123:2220   
 124:1598    125:2803    128:1460    129:919     130:1069    131:1961   
 132:820     133:411     134:1710    135:304     136:914     137:997    
 138:2696    139:1570    140:1350    141:1339    142:1546    143:1518   
 144:1003    145:337     146:2000    147:1641    148:2495    149:2416   
 150:1020    151:1313    152:1970    153:530     154:5539    155:1378   
 156:2107    157:1381    158:1081    159:2208    160:2618    161:1621   
 162:3601    163:1671    164:1628    165:2098    166:1075    167:1696   
 168:3839    169:796     170:4709    171:993     172:3782    173:3008   
 174:896     175:1216    176:3590    177:4620    178:3531    179:2242   
 180:2350    181:3648    182:3459    183:2023    184:2271    185:20493  
 186:4789    187:4312    188:4012    189:3965    190:9342    191:1494   
 192:11042   193:8962    194:7367    195:5230    196:3167    197:2632   
 198:5995    199:6888    200:8096    201:6257    202:10496   203:10081  
 204:4598    205:3678    206:4465    207:3500    208:4106    209:4962   
 210:4626    211:2590    212:4224    213:3387    214:1117    215:50     
 216:6778    217:2753    218:1347    219:587     220:2047    221:1021   
 222:868     223:2218   

End of report


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