[cmNOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Ven 22 Mar 18:03:53 UTC 2019
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 23 Mar, 2019
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 741807
Prefixes after maximum aggregation (per Origin AS): 284756
Deaggregation factor: 2.61
Unique aggregates announced (without unneeded subnets): 357759
Total ASes present in the Internet Routing Table: 63716
Prefixes per ASN: 11.64
Origin-only ASes present in the Internet Routing Table: 54839
Origin ASes announcing only one prefix: 23689
Transit ASes present in the Internet Routing Table: 8877
Transit-only ASes present in the Internet Routing Table: 268
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 34
Max AS path prepend of ASN (206156) 26
Prefixes from unregistered ASNs in the Routing Table: 29
Number of instances of unregistered ASNs: 32
Number of 32-bit ASNs allocated by the RIRs: 26276
Number of 32-bit ASNs visible in the Routing Table: 21442
Prefixes from 32-bit ASNs in the Routing Table: 93820
Number of bogon 32-bit ASNs visible in the Routing Table: 27
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 256
Number of addresses announced to Internet: 2844501632
Equivalent to 169 /8s, 139 /16s and 166 /24s
Percentage of available address space announced: 76.8
Percentage of allocated address space announced: 76.8
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: 247814
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 200650
Total APNIC prefixes after maximum aggregation: 57867
APNIC Deaggregation factor: 3.47
Prefixes being announced from the APNIC address blocks: 197536
Unique aggregates announced from the APNIC address blocks: 82366
APNIC Region origin ASes present in the Internet Routing Table: 9623
APNIC Prefixes per ASN: 20.53
APNIC Region origin ASes announcing only one prefix: 2705
APNIC Region transit ASes present in the Internet Routing Table: 1420
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: 4588
Number of APNIC addresses announced to Internet: 769694080
Equivalent to 45 /8s, 224 /16s and 153 /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: 219300
Total ARIN prefixes after maximum aggregation: 103653
ARIN Deaggregation factor: 2.12
Prefixes being announced from the ARIN address blocks: 218381
Unique aggregates announced from the ARIN address blocks: 104721
ARIN Region origin ASes present in the Internet Routing Table: 18428
ARIN Prefixes per ASN: 11.85
ARIN Region origin ASes announcing only one prefix: 6874
ARIN Region transit ASes present in the Internet Routing Table: 1889
Average ARIN Region AS path length visible: 3.9
Max ARIN Region AS path length visible: 24
Number of ARIN region 32-bit ASNs visible in the Routing Table: 2634
Number of ARIN addresses announced to Internet: 1079597952
Equivalent to 64 /8s, 89 /16s and 91 /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: 204638
Total RIPE prefixes after maximum aggregation: 97408
RIPE Deaggregation factor: 2.10
Prefixes being announced from the RIPE address blocks: 200883
Unique aggregates announced from the RIPE address blocks: 119278
RIPE Region origin ASes present in the Internet Routing Table: 25909
RIPE Prefixes per ASN: 7.75
RIPE Region origin ASes announcing only one prefix: 11494
RIPE Region transit ASes present in the Internet Routing Table: 3682
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 34
Number of RIPE region 32-bit ASNs visible in the Routing Table: 7936
Number of RIPE addresses announced to Internet: 717817472
Equivalent to 42 /8s, 201 /16s and 6 /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: 96555
Total LACNIC prefixes after maximum aggregation: 21520
LACNIC Deaggregation factor: 4.49
Prefixes being announced from the LACNIC address blocks: 97920
Unique aggregates announced from the LACNIC address blocks: 41890
LACNIC Region origin ASes present in the Internet Routing Table: 8208
LACNIC Prefixes per ASN: 11.93
LACNIC Region origin ASes announcing only one prefix: 2184
LACNIC Region transit ASes present in the Internet Routing Table: 1531
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 28
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 5749
Number of LACNIC addresses announced to Internet: 173485056
Equivalent to 10 /8s, 87 /16s and 44 /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: 20634
Total AfriNIC prefixes after maximum aggregation: 4286
AfriNIC Deaggregation factor: 4.81
Prefixes being announced from the AfriNIC address blocks: 26831
Unique aggregates announced from the AfriNIC address blocks: 9269
AfriNIC Region origin ASes present in the Internet Routing Table: 1261
AfriNIC Prefixes per ASN: 21.28
AfriNIC Region origin ASes announcing only one prefix: 432
AfriNIC Region transit ASes present in the Internet Routing Table: 246
Average AfriNIC Region AS path length visible: 4.9
Max AfriNIC Region AS path length visible: 21
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 535
Number of AfriNIC addresses announced to Internet: 103641856
Equivalent to 6 /8s, 45 /16s and 115 /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 4680 542 543 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4658 4192 74 ERX-CERNET-BKB China Education and Rese
7552 3096 1265 52 VIETEL-AS-AP Viettel Group, VN
45899 3037 1737 111 VNPT-AS-VN VNPT Corp, VN
9829 2738 1494 553 BSNL-NIB National Internet Backbone, IN
4766 2615 11120 762 KIXS-AS-KR Korea Telecom, KR
9808 2434 8699 27 CMNET-GD Guangdong Mobile Communication
9394 2209 4906 31 CTTNET China TieTong Telecommunications
4755 2137 422 176 TATACOMM-AS TATA Communications formerl
9498 2026 426 167 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
6327 3601 1325 94 SHAW - Shaw Communications Inc., CA
11492 3552 230 615 CABLEONE - CABLE ONE, INC., US
22773 3382 2976 163 ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
16509 2600 5900 1070 AMAZON-02 - Amazon.com, Inc., US
16625 2262 1288 1770 AKAMAI-AS - Akamai Technologies, Inc.,
20115 2152 2747 535 CHARTER-20115 - Charter Communications,
30036 2131 352 138 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom
18566 2112 405 108 MEGAPATH5-US - MegaPath Corporation, US
5650 2094 3074 1462 FRONTIER-FRTR - Frontier Communications
209 2080 5104 583 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 5427 1628 139 UNI2-AS, ES
39891 3778 203 20 ALJAWWALSTC-AS, SA
8551 3269 378 45 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
20940 2643 540 1916 AKAMAI-ASN1, US
12389 2228 2221 638 ROSTELECOM-AS, RU
34984 2057 340 538 TELLCOM-AS, TR
9121 1679 1693 19 TTNET, TR
13188 1605 100 47 TRIOLAN, UA
9009 1399 145 761 M247, GB
8402 1256 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 5638 3335 590 Uninet S.A. de C.V., MX
10620 3507 537 365 Telmex Colombia S.A., CO
11830 2704 384 34 Instituto Costarricense de Electricidad
7303 1447 985 245 Telecom Argentina S.A., AR
6503 1418 433 54 Axtel, S.A.B. de C.V., MX
28573 1327 2247 178 CLARO S.A., BR
6147 1258 377 29 Telefonica del Peru S.A.A., PE
3816 1022 505 113 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
11172 951 144 66 Alestra, S. de R.L. de C.V., MX
13999 951 521 246 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 1200 393 21 LINKdotNET-AS, EG
37611 895 107 9 Afrihost, ZA
24835 843 636 22 RAYA-AS, EG
36903 827 416 126 MT-MPLS, MA
36992 826 1531 71 ETISALAT-MISR, EG
8452 668 1731 19 TE-AS TE-AS, EG
29571 485 70 12 ORANGE-COTE-IVOIRE, CI
37492 470 470 57 ORANGE-, TN
37342 420 32 1 MOVITEL, MZ
23889 395 231 15 MauritiusTelecom, MU
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 5638 3335 590 Uninet S.A. de C.V., MX
12479 5427 1628 139 UNI2-AS, ES
7545 4680 542 543 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4658 4192 74 ERX-CERNET-BKB China Education and Rese
39891 3778 203 20 ALJAWWALSTC-AS, SA
6327 3601 1325 94 SHAW - Shaw Communications Inc., CA
11492 3552 230 615 CABLEONE - CABLE ONE, INC., US
10620 3507 537 365 Telmex Colombia S.A., CO
22773 3382 2976 163 ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
8551 3269 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 5427 5288 UNI2-AS, ES
4538 4658 4584 ERX-CERNET-BKB China Education and Research Net
7545 4680 4137 TPG-INTERNET-AP TPG Telecom Limited, AU
39891 3778 3758 ALJAWWALSTC-AS, SA
6327 3601 3507 SHAW - Shaw Communications Inc., CA
8551 3269 3224 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
22773 3382 3219 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications
10620 3507 3142 Telmex Colombia S.A., CO
7552 3096 3044 VIETEL-AS-AP Viettel Group, VN
11492 3552 2937 CABLEONE - CABLE ONE, INC., US
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
1358592 UNALLOCATED 103.134.14.0/23 63956 COLO-AS-AP Colocation Australi
1358592 UNALLOCATED 103.134.14.0/24 63956 COLO-AS-AP Colocation Australi
1358592 UNALLOCATED 103.134.15.0/24 63956 COLO-AS-AP Colocation Australi
65549 DOCUMENT 117.239.163.0/24 65544 UNKNOWN
224413 UNALLOCATED 131.221.136.0/24 264413 Conecta Telecom Ltda, BR
64339 UNALLOCATED 143.0.108.0/22 18747 IFX18747 - IFX Corporation, US
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
2.58.224.0/24 201843 IBERSONTEL, ES
2.58.225.0/24 201843 IBERSONTEL, ES
2.58.226.0/24 201843 IBERSONTEL, ES
2.58.227.0/24 201843 IBERSONTEL, ES
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
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 /10:36 /11:100 /12:291
/13:566 /14:1136 /15:1910 /16:13364 /17:7963 /18:13927
/19:25677 /20:39958 /21:46164 /22:92856 /23:75692 /24:421180
/25:965 /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 4339 5427 UNI2-AS, ES
6327 3376 3601 SHAW - Shaw Communications Inc., CA
39891 2946 3778 ALJAWWALSTC-AS, SA
11492 2779 3552 CABLEONE - CABLE ONE, INC., US
8551 2723 3269 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
22773 2620 3382 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications
11830 2049 2704 Instituto Costarricense de Electricidad y Telec
18566 2007 2112 MEGAPATH5-US - MegaPath Corporation, US
30036 1878 2131 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communi
5650 1761 2094 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)
----------------------------------------------
1:1606 2:865 4:22 5:2944 6:45 7:1
8:1255 9:1 11:3 12:1849 13:322 14:1952
15:36 16:4 17:240 18:59 20:49 23:2621
24:2544 25:2 27:2547 31:2076 32:97 35:36
36:845 37:3044 38:1700 39:296 40:120 41:3133
42:752 43:2022 44:147 45:7017 46:3251 47:252
49:1361 50:1100 51:322 52:1027 54:289 55:2
56:9 57:43 58:1694 59:1076 60:502 61:2073
62:2007 63:1812 64:4999 65:2216 66:4838 67:2706
68:1169 69:3531 70:1331 71:602 72:2452 74:2761
75:513 76:550 77:1723 78:1761 79:2323 80:1805
81:1505 82:1129 83:888 84:1104 85:2286 86:534
87:1563 88:1035 89:2485 90:222 91:6590 92:1351
93:2444 94:2590 95:3207 96:921 97:344 98:949
99:206 100:89 101:1158 102:480 103:20679 104:3560
105:247 106:847 107:1771 108:688 109:3729 110:1635
111:1885 112:1478 113:1390 114:1135 115:1762 116:1715
117:1892 118:2185 119:1644 120:1020 121:1034 122:2329
123:1652 124:1470 125:1971 128:1258 129:831 130:534
131:1653 132:722 133:219 134:1051 135:242 136:574
137:714 138:2047 139:844 140:578 141:859 142:854
143:1060 144:846 145:509 146:1268 147:805 148:1704
149:820 150:781 151:1011 152:1034 153:322 154:2814
155:899 156:1678 157:939 158:643 159:1915 160:1531
161:932 162:2691 163:799 164:1136 165:1567 166:452
167:1398 168:3286 169:868 170:4068 171:568 172:1166
173:2196 174:1014 175:909 176:2333 177:4209 178:2538
179:1456 180:2160 181:2397 182:2690 183:1075 184:1191
185:14883 186:3666 187:2442 188:2893 189:1984 190:8321
191:1512 192:10027 193:6647 194:5421 195:4072 196:3009
197:1613 198:5861 199:5986 200:7226 201:5119 202:10379
203:10229 204:4548 205:2994 206:3216 207:3260 208:3964
209:4247 210:3930 211:2000 212:3057 213:2904 214:1082
215:54 216:5918 217:2225 218:876 219:579 220:1876
221:967 222:984 223:1401
End of report
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