[SANOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Mar 8 18:03:34 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 09 Mar, 2019
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 740306
Prefixes after maximum aggregation (per Origin AS): 285904
Deaggregation factor: 2.59
Unique aggregates announced (without unneeded subnets): 356243
Total ASes present in the Internet Routing Table: 63449
Prefixes per ASN: 11.67
Origin-only ASes present in the Internet Routing Table: 54648
Origin ASes announcing only one prefix: 23590
Transit ASes present in the Internet Routing Table: 8801
Transit-only ASes present in the Internet Routing Table: 271
Average AS path length visible in the Internet Routing Table: 4.2
Max AS path length visible: 30
Max AS path prepend of ASN ( 16327) 25
Prefixes from unregistered ASNs in the Routing Table: 28
Number of instances of unregistered ASNs: 31
Number of 32-bit ASNs allocated by the RIRs: 26062
Number of 32-bit ASNs visible in the Routing Table: 21215
Prefixes from 32-bit ASNs in the Routing Table: 92922
Number of bogon 32-bit ASNs visible in the Routing Table: 26
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 255
Number of addresses announced to Internet: 2842211683
Equivalent to 169 /8s, 104 /16s and 181 /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: 248230
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 201454
Total APNIC prefixes after maximum aggregation: 57939
APNIC Deaggregation factor: 3.48
Prefixes being announced from the APNIC address blocks: 198125
Unique aggregates announced from the APNIC address blocks: 81878
APNIC Region origin ASes present in the Internet Routing Table: 9526
APNIC Prefixes per ASN: 20.80
APNIC Region origin ASes announcing only one prefix: 2681
APNIC Region transit ASes present in the Internet Routing Table: 1405
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 29
Number of APNIC region 32-bit ASNs visible in the Routing Table: 4521
Number of APNIC addresses announced to Internet: 769392130
Equivalent to 45 /8s, 219 /16s and 254 /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: 218861
Total ARIN prefixes after maximum aggregation: 103735
ARIN Deaggregation factor: 2.11
Prefixes being announced from the ARIN address blocks: 217916
Unique aggregates announced from the ARIN address blocks: 104509
ARIN Region origin ASes present in the Internet Routing Table: 18393
ARIN Prefixes per ASN: 11.85
ARIN Region origin ASes announcing only one prefix: 6841
ARIN Region transit ASes present in the Internet Routing Table: 1867
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 24
Number of ARIN region 32-bit ASNs visible in the Routing Table: 2597
Number of ARIN addresses announced to Internet: 1079341472
Equivalent to 64 /8s, 85 /16s and 113 /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: 203693
Total RIPE prefixes after maximum aggregation: 97183
RIPE Deaggregation factor: 2.10
Prefixes being announced from the RIPE address blocks: 200075
Unique aggregates announced from the RIPE address blocks: 118662
RIPE Region origin ASes present in the Internet Routing Table: 25857
RIPE Prefixes per ASN: 7.74
RIPE Region origin ASes announcing only one prefix: 11479
RIPE Region transit ASes present in the Internet Routing Table: 3655
Average RIPE Region AS path length visible: 4.4
Max RIPE Region AS path length visible: 30
Number of RIPE region 32-bit ASNs visible in the Routing Table: 7881
Number of RIPE addresses announced to Internet: 717789120
Equivalent to 42 /8s, 200 /16s and 151 /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: 95556
Total LACNIC prefixes after maximum aggregation: 22755
LACNIC Deaggregation factor: 4.20
Prefixes being announced from the LACNIC address blocks: 96878
Unique aggregates announced from the LACNIC address blocks: 41670
LACNIC Region origin ASes present in the Internet Routing Table: 8131
LACNIC Prefixes per ASN: 11.91
LACNIC Region origin ASes announcing only one prefix: 2163
LACNIC Region transit ASes present in the Internet Routing Table: 1518
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 25
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 5691
Number of LACNIC addresses announced to Internet: 171980544
Equivalent to 10 /8s, 64 /16s and 55 /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: 20713
Total AfriNIC prefixes after maximum aggregation: 4270
AfriNIC Deaggregation factor: 4.85
Prefixes being announced from the AfriNIC address blocks: 27057
Unique aggregates announced from the AfriNIC address blocks: 9296
AfriNIC Region origin ASes present in the Internet Routing Table: 1252
AfriNIC Prefixes per ASN: 21.61
AfriNIC Region origin ASes announcing only one prefix: 426
AfriNIC Region transit ASes present in the Internet Routing Table: 248
Average AfriNIC Region AS path length visible: 4.4
Max AfriNIC Region AS path length visible: 21
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 525
Number of AfriNIC addresses announced to Internet: 103444224
Equivalent to 6 /8s, 42 /16s and 111 /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 4662 542 544 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4657 4192 74 ERX-CERNET-BKB China Education and Rese
7552 3096 1240 49 VIETEL-AS-AP Viettel Group, VN
45899 3039 1737 111 VNPT-AS-VN VNPT Corp, VN
4766 2814 11125 767 KIXS-AS-KR Korea Telecom, KR
9829 2751 1496 551 BSNL-NIB National Internet Backbone, IN
9808 2431 8699 26 CMNET-GD Guangdong Mobile Communication
9394 2345 4906 29 CTTNET China TieTong Telecommunications
4755 2141 422 179 TATACOMM-AS TATA Communications formerl
9498 2012 426 162 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 3619 1326 93 SHAW - Shaw Communications Inc., CA
11492 3531 228 607 CABLEONE - CABLE ONE, INC., US
22773 3363 2976 164 ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
16509 2503 5371 1061 AMAZON-02 - Amazon.com, Inc., US
16625 2288 1272 1756 AKAMAI-AS - Akamai Technologies, Inc.,
20115 2148 2740 537 CHARTER-20115 - Charter Communications,
18566 2119 405 108 MEGAPATH5-US - MegaPath Corporation, US
30036 2118 351 178 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom
5650 2093 3074 1462 FRONTIER-FRTR - Frontier Communications
209 2081 5094 582 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 5379 1628 138 UNI2-AS, ES
39891 3778 203 20 ALJAWWALSTC-AS, SA
8551 3289 378 44 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
20940 2646 547 1920 AKAMAI-ASN1, US
12389 2227 2221 637 ROSTELECOM-AS, RU
34984 2060 340 536 TELLCOM-AS, TR
9121 1682 1693 19 TTNET, TR
13188 1604 100 46 TRIOLAN, UA
9009 1372 146 757 M247, GB
8402 1304 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 5600 3331 598 Uninet S.A. de C.V., MX
10620 2769 414 1053 Telmex Colombia S.A., CO
11830 2703 384 34 Instituto Costarricense de Electricidad
6503 1517 433 54 Axtel, S.A.B. de C.V., MX
7303 1432 965 233 Telecom Argentina S.A., AR
28573 1287 2247 181 CLARO S.A., BR
6147 1276 377 29 Telefonica del Peru S.A.A., PE
3816 1022 505 113 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
13999 937 518 246 Mega Cable, S.A. de C.V., MX
11172 932 144 66 Alestra, S. de R.L. 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 1207 393 21 LINKdotNET-AS, EG
37611 915 107 9 Afrihost, ZA
24835 848 636 22 RAYA-AS, EG
36903 827 416 125 MT-MPLS, MA
36992 817 1535 60 ETISALAT-MISR, EG
8452 701 1731 20 TE-AS TE-AS, EG
29571 485 70 13 ORANGE-COTE-IVOIRE, CI
37492 470 470 57 ORANGE-, TN
15399 428 45 11 WANANCHI-, KE
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 5600 3331 598 Uninet S.A. de C.V., MX
12479 5379 1628 138 UNI2-AS, ES
7545 4662 542 544 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4657 4192 74 ERX-CERNET-BKB China Education and Rese
39891 3778 203 20 ALJAWWALSTC-AS, SA
6327 3619 1326 93 SHAW - Shaw Communications Inc., CA
11492 3531 228 607 CABLEONE - CABLE ONE, INC., US
22773 3363 2976 164 ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
8551 3289 378 44 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
7552 3096 1240 49 VIETEL-AS-AP Viettel Group, VN
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 5379 5241 UNI2-AS, ES
4538 4657 4583 ERX-CERNET-BKB China Education and Research Net
7545 4662 4118 TPG-INTERNET-AP TPG Telecom Limited, AU
39891 3778 3758 ALJAWWALSTC-AS, SA
6327 3619 3526 SHAW - Shaw Communications Inc., CA
8551 3289 3245 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
22773 3363 3199 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications
7552 3096 3047 VIETEL-AS-AP Viettel Group, VN
45899 3039 2928 VNPT-AS-VN VNPT Corp, VN
11492 3531 2924 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 103.134.15.0/24 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
64355 UNALLOCATED 156.40.196.0/24 30387 NIH-NET-NCCS - National Instit
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
198.18.1.19/32 7497 CSTNET-AS-AP Computer Network Information Cente
Complete listing at http://thyme.rand.apnic.net/current/data-dsua
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
43.255.80.0/24 36351 SOFTLAYER - SoftLayer Technologies Inc., US
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
/13:567 /14:1135 /15:1907 /16:13350 /17:7927 /18:13900
/19:25551 /20:39894 /21:46168 /22:92576 /23:75521 /24:418423
/25:957 /26:840 /27:896 /28:27 /29:7 /30:14
/31:0 /32:197
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
12479 4260 5379 UNI2-AS, ES
6327 3391 3619 SHAW - Shaw Communications Inc., CA
39891 2946 3778 ALJAWWALSTC-AS, SA
11492 2773 3531 CABLEONE - CABLE ONE, INC., US
8551 2744 3289 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
22773 2604 3363 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications
11830 2048 2703 Instituto Costarricense de Electricidad y Telec
18566 2014 2119 MEGAPATH5-US - MegaPath Corporation, US
30036 1865 2118 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communi
5650 1761 2093 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)
----------------------------------------------
1:1607 2:888 4:22 5:2763 6:45 7:1
8:1183 11:3 12:1859 13:313 14:1924 15:39
16:4 17:233 18:59 20:49 23:2596 24:2521
25:2 27:2538 31:2068 32:97 35:36 36:833
37:3013 38:1689 39:295 40:120 41:3175 42:746
43:2002 44:143 45:6902 46:3224 47:251 49:1362
50:1098 51:322 52:1024 54:289 55:2 56:9
57:40 58:1713 59:1074 60:497 61:2069 62:1988
63:1815 64:4994 65:2202 66:4824 67:2706 68:1152
69:3544 70:1329 71:601 72:2425 74:2762 75:515
76:546 77:1711 78:1762 79:2331 80:1768 81:1496
82:1128 83:870 84:1098 85:2241 86:539 87:1551
88:1034 89:2431 90:210 91:6579 92:1261 93:2442
94:2520 95:3208 96:918 97:346 98:947 99:206
100:88 101:1157 102:453 103:20213 104:3528 105:247
106:890 107:1766 108:699 109:3723 110:1632 111:1867
112:1410 113:1418 114:1134 115:1721 116:1712 117:1876
118:2155 119:1624 120:1023 121:1034 122:2294 123:1643
124:1450 125:1965 128:1254 129:822 130:525 131:1633
132:733 133:218 134:1050 135:241 136:559 137:706
138:1995 139:848 140:579 141:844 142:800 143:1070
144:837 145:510 146:1261 147:793 148:1695 149:816
150:777 151:1010 152:1018 153:323 154:2898 155:894
156:1735 157:919 158:666 159:1894 160:1523 161:911
162:2680 163:791 164:1127 165:1577 166:428 167:1391
168:3210 169:861 170:4002 171:565 172:1108 173:2174
174:1015 175:893 176:2328 177:4048 178:2544 179:1368
180:2126 181:2398 182:2679 183:1069 184:1174 185:14837
186:3746 187:2418 188:2890 189:1973 190:8293 191:1394
192:10031 193:6622 194:5392 195:4057 196:2994 197:1648
198:5820 199:5965 200:7127 201:5081 202:10235 203:10202
204:4598 205:3006 206:3237 207:3289 208:3966 209:4237
210:3932 211:1994 212:3069 213:2889 214:1087 215:53
216:5959 217:2233 218:921 219:581 220:1864 221:966
222:999 223:1441
End of report
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