[SANOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Jan 25 18:03:28 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 26 Jan, 2019
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 735087
Prefixes after maximum aggregation (per Origin AS): 282856
Deaggregation factor: 2.60
Unique aggregates announced (without unneeded subnets): 353977
Total ASes present in the Internet Routing Table: 63043
Prefixes per ASN: 11.66
Origin-only ASes present in the Internet Routing Table: 54340
Origin ASes announcing only one prefix: 23554
Transit ASes present in the Internet Routing Table: 8703
Transit-only ASes present in the Internet Routing Table: 266
Average AS path length visible in the Internet Routing Table: 4.2
Max AS path length visible: 31
Max AS path prepend of ASN ( 16327) 25
Prefixes from unregistered ASNs in the Routing Table: 21
Number of instances of unregistered ASNs: 23
Number of 32-bit ASNs allocated by the RIRs: 25565
Number of 32-bit ASNs visible in the Routing Table: 20801
Prefixes from 32-bit ASNs in the Routing Table: 90165
Number of bogon 32-bit ASNs visible in the Routing Table: 16
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 280
Number of addresses announced to Internet: 2842185859
Equivalent to 169 /8s, 104 /16s and 80 /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: 99.1
Total number of prefixes smaller than registry allocations: 246520
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 200062
Total APNIC prefixes after maximum aggregation: 57154
APNIC Deaggregation factor: 3.50
Prefixes being announced from the APNIC address blocks: 197213
Unique aggregates announced from the APNIC address blocks: 81461
APNIC Region origin ASes present in the Internet Routing Table: 9401
APNIC Prefixes per ASN: 20.98
APNIC Region origin ASes announcing only one prefix: 2654
APNIC Region transit ASes present in the Internet Routing Table: 1385
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 26
Number of APNIC region 32-bit ASNs visible in the Routing Table: 4402
Number of APNIC addresses announced to Internet: 769479202
Equivalent to 45 /8s, 221 /16s and 82 /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: 217564
Total ARIN prefixes after maximum aggregation: 103205
ARIN Deaggregation factor: 2.11
Prefixes being announced from the ARIN address blocks: 216843
Unique aggregates announced from the ARIN address blocks: 103859
ARIN Region origin ASes present in the Internet Routing Table: 18333
ARIN Prefixes per ASN: 11.83
ARIN Region origin ASes announcing only one prefix: 6813
ARIN Region transit ASes present in the Internet Routing Table: 1849
Average ARIN Region AS path length visible: 3.9
Max ARIN Region AS path length visible: 23
Number of ARIN region 32-bit ASNs visible in the Routing Table: 2556
Number of ARIN addresses announced to Internet: 1079577248
Equivalent to 64 /8s, 89 /16s and 10 /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: 201876
Total RIPE prefixes after maximum aggregation: 96105
RIPE Deaggregation factor: 2.10
Prefixes being announced from the RIPE address blocks: 198122
Unique aggregates announced from the RIPE address blocks: 117149
RIPE Region origin ASes present in the Internet Routing Table: 25785
RIPE Prefixes per ASN: 7.68
RIPE Region origin ASes announcing only one prefix: 11496
RIPE Region transit ASes present in the Internet Routing Table: 3619
Average RIPE Region AS path length visible: 4.4
Max RIPE Region AS path length visible: 28
Number of RIPE region 32-bit ASNs visible in the Routing Table: 7780
Number of RIPE addresses announced to Internet: 716486080
Equivalent to 42 /8s, 180 /16s and 181 /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: 95321
Total LACNIC prefixes after maximum aggregation: 22183
LACNIC Deaggregation factor: 4.30
Prefixes being announced from the LACNIC address blocks: 96713
Unique aggregates announced from the LACNIC address blocks: 42119
LACNIC Region origin ASes present in the Internet Routing Table: 8009
LACNIC Prefixes per ASN: 12.08
LACNIC Region origin ASes announcing only one prefix: 2174
LACNIC Region transit ASes present in the Internet Routing Table: 1495
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 31
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 5558
Number of LACNIC addresses announced to Internet: 173208064
Equivalent to 10 /8s, 82 /16s and 242 /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: 20242
Total AfriNIC prefixes after maximum aggregation: 4191
AfriNIC Deaggregation factor: 4.83
Prefixes being announced from the AfriNIC address blocks: 25916
Unique aggregates announced from the AfriNIC address blocks: 9144
AfriNIC Region origin ASes present in the Internet Routing Table: 1233
AfriNIC Prefixes per ASN: 21.02
AfriNIC Region origin ASes announcing only one prefix: 417
AfriNIC Region transit ASes present in the Internet Routing Table: 244
Average AfriNIC Region AS path length visible: 4.4
Max AfriNIC Region AS path length visible: 20
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 505
Number of AfriNIC addresses announced to Internet: 103030272
Equivalent to 6 /8s, 36 /16s and 30 /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
4538 4653 4192 74 ERX-CERNET-BKB China Education and Rese
7545 4594 526 522 TPG-INTERNET-AP TPG Telecom Limited, AU
7552 3048 1160 100 VIETEL-AS-AP Viettel Group, VN
45899 3000 1721 111 VNPT-AS-VN VNPT Corp, VN
4766 2811 11127 767 KIXS-AS-KR Korea Telecom, KR
9829 2749 1496 550 BSNL-NIB National Internet Backbone, IN
9808 2475 8699 26 CMNET-GD Guangdong Mobile Communication
9394 2406 4906 29 CTTNET China TieTong Telecommunications
4755 2145 438 183 TATACOMM-AS TATA Communications formerl
17974 2036 968 50 TELKOMNET-AS2-AP PT Telekomunikasi Indo
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 3536 1322 87 SHAW - Shaw Communications Inc., CA
11492 3486 225 616 CABLEONE - CABLE ONE, INC., US
22773 3313 2980 174 ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
16509 2621 5377 1003 AMAZON-02 - Amazon.com, Inc., US
16625 2272 1248 1714 AKAMAI-AS - Akamai Technologies, Inc.,
20115 2153 2759 536 CHARTER-20115 - Charter Communications,
18566 2136 405 108 MEGAPATH5-US - MegaPath Corporation, US
30036 2122 356 114 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom
5650 2089 3074 1462 FRONTIER-FRTR - Frontier Communications
209 2071 5076 580 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 5320 1628 138 UNI2-AS, ES
39891 3778 203 20 ALJAWWALSTC-AS, SA
8551 3277 378 43 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
20940 2625 561 1923 AKAMAI-ASN1, US
12389 2228 2220 631 ROSTELECOM-AS, RU
34984 2067 339 528 TELLCOM-AS, TR
9121 1685 1691 17 TTNET, TR
13188 1604 100 46 TRIOLAN, UA
9009 1309 144 735 M247, GB
8402 1305 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 5532 3323 587 Uninet S.A. de C.V., MX
10620 3003 453 963 Telmex Colombia S.A., CO
11830 2683 371 60 Instituto Costarricense de Electricidad
6503 1583 449 55 Axtel, S.A.B. de C.V., MX
7303 1441 965 226 Telecom Argentina S.A., AR
6147 1271 377 29 Telefonica del Peru S.A.A., PE
28573 1181 2239 183 CLARO S.A., BR
3816 1029 511 115 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
11172 932 144 67 Alestra, S. de R.L. de C.V., MX
18881 920 1114 28 TELEFÔNICA BRASIL S.A, BR
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 1145 393 21 LINKdotNET-AS, EG
37611 904 107 9 Afrihost, ZA
36992 800 1411 44 ETISALAT-MISR, EG
36903 797 401 139 MT-MPLS, MA
24835 684 634 21 RAYA-AS, EG
8452 629 1731 20 TE-AS TE-AS, EG
29571 485 70 13 ORANGE-COTE-IVOIRE, CI
37492 468 470 57 ORANGE-, TN
15399 425 45 11 WANANCHI-, KE
37342 418 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 5532 3323 587 Uninet S.A. de C.V., MX
12479 5320 1628 138 UNI2-AS, ES
4538 4653 4192 74 ERX-CERNET-BKB China Education and Rese
7545 4594 526 522 TPG-INTERNET-AP TPG Telecom Limited, AU
39891 3778 203 20 ALJAWWALSTC-AS, SA
6327 3536 1322 87 SHAW - Shaw Communications Inc., CA
11492 3486 225 616 CABLEONE - CABLE ONE, INC., US
22773 3313 2980 174 ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
8551 3277 378 43 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
7552 3048 1160 100 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 5320 5182 UNI2-AS, ES
4538 4653 4579 ERX-CERNET-BKB China Education and Research Net
7545 4594 4072 TPG-INTERNET-AP TPG Telecom Limited, AU
39891 3778 3758 ALJAWWALSTC-AS, SA
6327 3536 3449 SHAW - Shaw Communications Inc., CA
8551 3277 3234 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
22773 3313 3139 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications
7552 3048 2948 VIETEL-AS-AP Viettel Group, VN
45899 3000 2889 VNPT-AS-VN VNPT Corp, VN
11492 3486 2870 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
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&
64011 UNALLOCATED 166.220.64.0/19 20057 ATT-MOBILITY-LLC-AS20057 - AT&
64011 UNALLOCATED 166.220.96.0/19 20057 ATT-MOBILITY-LLC-AS20057 - AT&
64141 UNALLOCATED 181.119.152.0/24 264619 Wireless Provider, AR
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
23.170.96.0/24 29916 AS-TIC - The Internet Company Limited Partnership,
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
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 /11:99 /12:292
/13:568 /14:1128 /15:1917 /16:13372 /17:7875 /18:13833
/19:25553 /20:39707 /21:46145 /22:91375 /23:74966 /24:415370
/25:918 /26:821 /27:865 /28:20 /29:6 /30:7
/31:0 /32:192
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
12479 4166 5320 UNI2-AS, ES
6327 3302 3536 SHAW - Shaw Communications Inc., CA
39891 2946 3778 ALJAWWALSTC-AS, SA
11492 2758 3486 CABLEONE - CABLE ONE, INC., US
8551 2733 3277 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
22773 2551 3313 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications
18566 2031 2136 MEGAPATH5-US - MegaPath Corporation, US
11830 2029 2683 Instituto Costarricense de Electricidad y Telec
30036 1868 2122 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communi
5650 1761 2089 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)
----------------------------------------------
1:1613 2:897 4:23 5:2787 6:43 7:1
8:1174 12:1869 13:314 14:1866 15:37 16:2
17:219 18:59 20:49 23:2597 24:2461 25:2
27:2562 31:2044 32:92 35:35 36:832 37:3010
38:1609 39:288 40:122 41:3125 42:726 43:2001
44:139 45:6534 46:3214 47:248 49:1331 50:1087
51:321 52:1072 54:360 55:1 56:6 57:41
58:1716 59:1055 60:481 61:2076 62:2208 63:1807
64:5093 65:2199 66:4829 67:2685 68:1158 69:3476
70:1151 71:604 72:2287 74:2757 75:418 76:543
77:1727 78:1755 79:2313 80:1645 81:1432 82:1101
83:905 84:1084 85:2137 86:556 87:1550 88:985
89:2420 90:211 91:6559 92:1241 93:2433 94:2497
95:3215 96:917 97:349 98:941 99:169 100:87
101:1226 102:364 103:19892 104:3555 105:246 106:879
107:1816 108:695 109:3656 110:1649 111:1870 112:1404
113:1405 114:1150 115:1724 116:1653 117:1918 118:2186
119:1642 120:1044 121:1027 122:2359 123:1641 124:1408
125:1950 128:1227 129:677 130:523 131:1639 132:718
133:218 134:1047 135:230 136:547 137:680 138:1948
139:820 140:570 141:791 142:802 143:995 144:900
145:504 146:1248 147:798 148:1715 149:801 150:780
151:987 152:982 153:324 154:2420 155:966 156:1644
157:894 158:656 159:1907 160:1497 161:918 162:2672
163:771 164:1122 165:1574 166:438 167:1377 168:3259
169:870 170:4010 171:500 172:1071 173:2171 174:999
175:876 176:2299 177:4041 178:2564 179:1292 180:2088
181:2442 182:2688 183:1060 184:1142 185:14630 186:3701
187:2434 188:2955 189:2038 190:8354 191:1420 192:10058
193:6528 194:5338 195:4039 196:2926 197:1732 198:5719
199:5963 200:7325 201:5058 202:10143 203:10133 204:4616
205:3006 206:3303 207:3271 208:3948 209:4232 210:3925
211:1985 212:3056 213:2843 214:1081 215:52 216:5985
217:2193 218:916 219:573 220:1842 221:994 222:980
223:1432
End of report
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