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[safnog] Weekly Routing Table Report



This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.

The posting is sent to APOPS, NANOG, AfNOG, SANOG, PacNOG, SAFNOG
TZNOG, MENOG, BJNOG, SDNOG, CMNOG, LACNOG and the RIPE Routing WG.

Daily listings are sent to bgp-stats at lists.apnic.net

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

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

Routing Table Report   04:00 +10GMT Sat 20 Apr, 2019

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

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

BGP routing table entries examined:                              746957
    Prefixes after maximum aggregation (per Origin AS):          286549
    Deaggregation factor:                                          2.61
    Unique aggregates announced (without unneeded subnets):      359606
Total ASes present in the Internet Routing Table:                 63934
    Prefixes per ASN:                                             11.68
Origin-only ASes present in the Internet Routing Table:           55016
Origin ASes announcing only one prefix:                           23717
Transit ASes present in the Internet Routing Table:                8918
Transit-only ASes present in the Internet Routing Table:            276
Average AS path length visible in the Internet Routing Table:       4.4
    Max AS path length visible:                                      40
    Max AS path prepend of ASN ( 22394)                              37
Prefixes from unregistered ASNs in the Routing Table:                23
    Number of instances of unregistered ASNs:                        26
Number of 32-bit ASNs allocated by the RIRs:                      26645
Number of 32-bit ASNs visible in the Routing Table:               21734
Prefixes from 32-bit ASNs in the Routing Table:                   95335
Number of bogon 32-bit ASNs visible in the Routing Table:            19
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            240
Number of addresses announced to Internet:                   2850884224
    Equivalent to 169 /8s, 237 /16s and 10 /24s
    Percentage of available address space announced:               77.0
    Percentage of allocated address space announced:               77.0
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               99.2
Total number of prefixes smaller than registry allocations:      249808

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

Prefixes being announced by APNIC Region ASes:                   201295
    Total APNIC prefixes after maximum aggregation:               58160
    APNIC Deaggregation factor:                                    3.46
Prefixes being announced from the APNIC address blocks:          198092
    Unique aggregates announced from the APNIC address blocks:    82348
APNIC Region origin ASes present in the Internet Routing Table:    9656
    APNIC Prefixes per ASN:                                       20.51
APNIC Region origin ASes announcing only one prefix:               2704
APNIC Region transit ASes present in the Internet Routing Table:   1431
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:   4654
Number of APNIC addresses announced to Internet:              773909376
    Equivalent to 46 /8s, 32 /16s and 235 /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, 131072-139577
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:                    221967
    Total ARIN prefixes after maximum aggregation:               104388
    ARIN Deaggregation factor:                                     2.13
Prefixes being announced from the ARIN address blocks:           221005
    Unique aggregates announced from the ARIN address blocks:    105318
ARIN Region origin ASes present in the Internet Routing Table:    18431
    ARIN Prefixes per ASN:                                        11.99
ARIN Region origin ASes announcing only one prefix:                6835
ARIN Region transit ASes present in the Internet Routing Table:    1902
Average ARIN Region AS path length visible:                         3.9
    Max ARIN Region AS path length visible:                          40
Number of ARIN region 32-bit ASNs visible in the Routing Table:    2668
Number of ARIN addresses announced to Internet:              1079461760
    Equivalent to 64 /8s, 87 /16s and 71 /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, 393216-399260
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,  45/8,  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:                    205826
    Total RIPE prefixes after maximum aggregation:                98067
    RIPE Deaggregation factor:                                     2.10
Prefixes being announced from the RIPE address blocks:           202113
    Unique aggregates announced from the RIPE address blocks:    120064
RIPE Region origin ASes present in the Internet Routing Table:    25995
    RIPE Prefixes per ASN:                                         7.78
RIPE Region origin ASes announcing only one prefix:               11542
RIPE Region transit ASes present in the Internet Routing Table:    3687
Average RIPE Region AS path length visible:                         4.5
    Max RIPE Region AS path length visible:                          30
Number of RIPE region 32-bit ASNs visible in the Routing Table:    8022
Number of RIPE addresses announced to Internet:               718821248
    Equivalent to 42 /8s, 216 /16s and 87 /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
                       196608-210331
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:                   96496
    Total LACNIC prefixes after maximum aggregation:              21634
    LACNIC Deaggregation factor:                                   4.46
Prefixes being announced from the LACNIC address blocks:          97895
    Unique aggregates announced from the LACNIC address blocks:   42364
LACNIC Region origin ASes present in the Internet Routing Table:   8291
    LACNIC Prefixes per ASN:                                      11.81
LACNIC Region origin ASes announcing only one prefix:              2201
LACNIC Region transit ASes present in the Internet Routing Table:  1533
Average LACNIC Region AS path length visible:                       5.0
    Max LACNIC Region AS path length visible:                        27
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  5842
Number of LACNIC addresses announced to Internet:             173703424
    Equivalent to 10 /8s, 90 /16s and 129 /24s
LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 64099-64197, 262144-270748 + 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:                  21349
    Total AfriNIC prefixes after maximum aggregation:              4281
    AfriNIC Deaggregation factor:                                  4.99
Prefixes being announced from the AfriNIC address blocks:         27612
    Unique aggregates announced from the AfriNIC address blocks:   9289
AfriNIC Region origin ASes present in the Internet Routing Table:  1269
    AfriNIC Prefixes per ASN:                                     21.76
AfriNIC Region origin ASes announcing only one prefix:              435
AfriNIC Region transit ASes present in the Internet Routing Table:  241
Average AfriNIC Region AS path length visible:                      4.9
    Max AfriNIC Region AS path length visible:                       24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  548
Number of AfriNIC addresses announced to Internet:            104731648
    Equivalent to 6 /8s, 62 /16s and 20 /24s
AfriNIC AS Blocks      36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks  41/8, 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         4728        546     551  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538         4711       4192      74  ERX-CERNET-BKB China Education and Rese
  7552         3133       1305      53  VIETEL-AS-AP Viettel Group, VN
 45899         3004       1738     112  VNPT-AS-VN VNPT Corp, VN
  9829         2734       1496     551  BSNL-NIB National Internet Backbone, IN
  4766         2611      11120     762  KIXS-AS-KR Korea Telecom, KR
  9808         2448       8699      27  CMNET-GD Guangdong Mobile Communication
  9394         2176       4898      27  CTTNET China TieTong Telecommunications
  4755         2148        429     185  TATACOMM-AS TATA Communications formerl
  9498         2046        427     171  BBIL-AP BHARTI Airtel Ltd., IN

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
 11492         3644        238     587  CABLEONE - CABLE ONE, INC., US
  6327         3624       1325      94  SHAW - Shaw Communications Inc., CA
 22773         3397       2976     161  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
 16509         2657       5908    1110  AMAZON-02 - Amazon.com, Inc., US
 16625         2408       1318    1822  AKAMAI-AS - Akamai Technologies, Inc., 
 30036         2172        356     112  MEDIACOM-ENTERPRISE-BUSINESS - Mediacom
 20115         2149       2751     527  CHARTER-20115 - Charter Communications,
 18566         2108        405     108  MEGAPATH5-US - MegaPath Corporation, US
  5650         2086       3074    1462  FRONTIER-FRTR - Frontier Communications
   209         2040       5103     576  CENTURYLINK-US-LEGACY-QWEST - CenturyLi

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
 12479         5437       1629     140  UNI2-AS, ES
 39891         3778        203      20  ALJAWWALSTC-AS, SA
  8551         3238        378      45  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 20940         2642        534    1916  AKAMAI-ASN1, US
 12389         2236       2222     640  ROSTELECOM-AS, RU
 34984         2082        343     539  TELLCOM-AS, TR
  9121         1671       1693      19  TTNET, TR
 13188         1605        100      47  TRIOLAN, UA
  9009         1433        149     784  M247, GB
  8402         1250        545      15  CORBINA-AS OJSC "Vimpelcom", RU

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         5680       3338     598  Uninet S.A. de C.V., MX
 10620         3438        537     382  Telmex Colombia S.A., CO
 11830         2708        384      34  Instituto Costarricense de Electricidad
  7303         1469       1006     255  Telecom Argentina S.A., AR
 28573         1366       2248     196  CLARO S.A., BR
  6503         1300        433      53  Axtel, S.A.B. de C.V., MX
  6147         1246        376      28  Telefonica del Peru S.A.A., PE
  3816         1041        507     128  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
 11172          955        144      64  Alestra, S. de R.L. de C.V., MX
 13999          954        512     241  Mega Cable, S.A. de C.V., MX

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         1202        393      21  LINKdotNET-AS, EG
 37611          896        107       9  Afrihost, ZA
 24835          887        646      21  RAYA-AS, EG
 36992          841       1531      68  ETISALAT-MISR, EG
 36903          827        416     126  MT-MPLS, MA
  8452          708       1731      19  TE-AS TE-AS, EG
 29571          494         70      12  ORANGE-COTE-IVOIRE, CI
 37492          470        470      57  ORANGE-, TN
 15706          421         32       6  Sudatel, SD
 37342          420         32       1  MOVITEL, MZ

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         5680       3338     598  Uninet S.A. de C.V., MX
 12479         5437       1629     140  UNI2-AS, ES
  7545         4728        546     551  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538         4711       4192      74  ERX-CERNET-BKB China Education and Rese
 39891         3778        203      20  ALJAWWALSTC-AS, SA
 11492         3644        238     587  CABLEONE - CABLE ONE, INC., US
  6327         3624       1325      94  SHAW - Shaw Communications Inc., CA
 10620         3438        537     382  Telmex Colombia S.A., CO
 22773         3397       2976     161  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
  8551         3238        378      45  BEZEQ-INTERNATIONAL-AS Bezeqint Interne

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

Global Per AS Maximum Aggr summary
----------------------------------

  ASN   No of nets  Net Savings  Description
 12479       5437         5297   UNI2-AS, ES
  4538       4711         4637   ERX-CERNET-BKB China Education and Research Net
  7545       4728         4177   TPG-INTERNET-AP TPG Telecom Limited, AU
 39891       3778         3758   ALJAWWALSTC-AS, SA
  6327       3624         3530   SHAW - Shaw Communications Inc., CA
 22773       3397         3236   ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
  8551       3238         3193   BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
  7552       3133         3080   VIETEL-AS-AP Viettel Group, VN
 11492       3644         3057   CABLEONE - CABLE ONE, INC., US
 10620       3438         3056   Telmex Colombia S.A., CO

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

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

Bad AS    Designation  Network              Transit AS  Description
 230105   UNALLOCATED  38.110.79.0/24       23015       CMC180-TOR-AS - Cambridge Merc
 266842   UNALLOCATED  45.238.156.0/22     265680       HNTELCO S.A, HN
  65550   DOCUMENT     81.8.34.0/24         15924       BORUSANTELEKOM-AS, TR
  65550   DOCUMENT     81.8.35.0/24         15924       BORUSANTELEKOM-AS, TR
  65549   DOCUMENT     117.239.163.0/24     65544       UNKNOWN
  64339   UNALLOCATED  143.0.108.0/22       18747       IFX18747 - IFX Corporation, US
  64355   UNALLOCATED  156.40.196.0/24      30387       NIH-NET-NCCS - National Instit
  64011   UNALLOCATED  166.133.128.0/18     20057       ATT-MOBILITY-LLC-AS20057 - AT&
  64011   UNALLOCATED  166.133.192.0/18     20057       ATT-MOBILITY-LLC-AS20057 - AT&
  64011   UNALLOCATED  166.184.9.0/24       20057       ATT-MOBILITY-LLC-AS20057 - AT&

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

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

Network            Origin AS  Description
27.100.7.0/24        56096    UNKNOWN
27.126.156.0/22      55827    UNKNOWN
27.126.156.0/23      55827    UNKNOWN
27.126.158.0/23      55827    UNKNOWN
41.76.136.0/22       37500    -Reserved AS-, ZZ
41.76.140.0/22       37500    -Reserved AS-, ZZ
41.78.92.0/22        14988    BTC-GATE1, BW
41.78.180.0/23       37265    -Reserved AS-, ZZ
41.220.48.0/20       36900    -Reserved AS-, ZZ
41.242.92.0/24       37643    -Reserved AS-, ZZ

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        /8:12       /9:10      /10:37      /11:100     /12:291     
/13:568     /14:1136    /15:1908    /16:13369   /17:7968    /18:13899   
/19:25644   /20:40186   /21:46265   /22:93440   /23:75950   /24:425109  
/25:1065    /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     4355          5437    UNI2-AS, ES
  6327     3398          3624    SHAW - Shaw Communications Inc., CA
 39891     2946          3778    ALJAWWALSTC-AS, SA
 11492     2853          3644    CABLEONE - CABLE ONE, INC., US
  8551     2692          3238    BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 22773     2633          3397    ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
 11830     2053          2708    Instituto Costarricense de Electricidad y Telec
 18566     2003          2108    MEGAPATH5-US - MegaPath Corporation, US
 30036     1919          2172    MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communi
  5650     1754          2086    FRONTIER-FRTR - Frontier Communications of Amer

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

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

   1:1598      2:989       3:6         4:21        5:3103      6:45     
   7:1         8:1294      9:1        12:1799     13:330      14:1994   
  15:36       16:4        17:245      18:58       20:50       23:2676   
  24:2497     25:2        27:2480     31:1977     32:101      35:36     
  36:850      37:3054     38:1733     39:297      40:121      41:3268   
  42:775      43:2023     44:150      45:7311     46:3216     47:259    
  49:1354     50:1108     51:321      52:1015     54:283      55:701    
  56:6        57:43       58:1791     59:1076     60:507      61:2127   
  62:2125     63:1823     64:4957     65:2225     66:4835     67:2716   
  68:1177     69:3510     70:1323     71:615      72:2471     74:2758   
  75:536      76:543      77:1760     78:1810     79:2280     80:1804   
  81:1509     82:1125     83:896      84:1128     85:2309     86:510    
  87:1548     88:1055     89:2579     90:217      91:6565     92:1379   
  93:2474     94:2531     95:3247     96:930      97:343      98:953    
  99:393     100:87      101:1162    102:544     103:20984   104:3544   
 105:252     106:798     107:1780    108:694     109:3730    110:1654   
 111:1936    112:1477    113:1401    114:1144    115:1715    116:1744   
 117:1894    118:2180    119:1631    120:1022    121:1041    122:2354   
 123:1648    124:1473    125:1973    128:1236    129:830     130:534    
 131:1803    132:786     133:221     134:1091    135:241     136:569    
 137:742     138:2052    139:866     140:645     141:877     142:802    
 143:1049    144:847     145:494     146:1269    147:834     148:1720   
 149:848     150:783     151:1010    152:1059    153:335     154:2811   
 155:914     156:1629    157:960     158:651     159:1943    160:1584   
 161:923     162:2750    163:808     164:1194    165:1579    166:448    
 167:1392    168:3279    169:870     170:4071    171:576     172:1191   
 173:2216    174:1043    175:915     176:2332    177:4177    178:2534   
 179:1451    180:2149    181:2429    182:2673    183:1089    184:1504   
 185:14983   186:3661    187:2463    188:2900    189:1985    190:8303   
 191:1596    192:10057   193:6654    194:5410    195:4096    196:3139   
 197:1777    198:5894    199:6006    200:7159    201:5104    202:10414  
 203:10122   204:4543    205:3028    206:3229    207:3228    208:3957   
 209:4241    210:3935    211:2009    212:3154    213:2920    214:1100   
 215:54      216:5930    217:2237    218:883     219:582     220:1855   
 221:968     222:987     223:1365   

End of report