[menog] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Sep 10 18:03:21 UTC 2021
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 11 Sep, 2021
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 861637
Prefixes after maximum aggregation (per Origin AS): 326121
Deaggregation factor: 2.64
Unique aggregates announced (without unneeded subnets): 414174
Total ASes present in the Internet Routing Table: 71910
Prefixes per ASN: 11.98
Origin-only ASes present in the Internet Routing Table: 61801
Origin ASes announcing only one prefix: 25551
Transit ASes present in the Internet Routing Table: 10109
Transit-only ASes present in the Internet Routing Table: 329
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 37
Max AS path prepend of ASN (141827) 33
Prefixes from unregistered ASNs in the Routing Table: 967
Number of instances of unregistered ASNs: 974
Number of 32-bit ASNs allocated by the RIRs: 37182
Number of 32-bit ASNs visible in the Routing Table: 30868
Prefixes from 32-bit ASNs in the Routing Table: 143537
Number of bogon 32-bit ASNs visible in the Routing Table: 37
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 470
Number of addresses announced to Internet: 3039121536
Equivalent to 181 /8s, 37 /16s and 80 /24s
Percentage of available address space announced: 82.1
Percentage of allocated address space announced: 82.1
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 99.5
Total number of prefixes smaller than registry allocations: 286233
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 231597
Total APNIC prefixes after maximum aggregation: 66091
APNIC Deaggregation factor: 3.50
Prefixes being announced from the APNIC address blocks: 227042
Unique aggregates announced from the APNIC address blocks: 90918
APNIC Region origin ASes present in the Internet Routing Table: 11927
APNIC Prefixes per ASN: 19.04
APNIC Region origin ASes announcing only one prefix: 3390
APNIC Region transit ASes present in the Internet Routing Table: 1668
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 37
Number of APNIC region 32-bit ASNs visible in the Routing Table: 7082
Number of APNIC addresses announced to Internet: 773837568
Equivalent to 46 /8s, 31 /16s and 211 /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, 131072-147769
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: 251817
Total ARIN prefixes after maximum aggregation: 115198
ARIN Deaggregation factor: 2.19
Prefixes being announced from the ARIN address blocks: 251659
Unique aggregates announced from the ARIN address blocks: 119787
ARIN Region origin ASes present in the Internet Routing Table: 18899
ARIN Prefixes per ASN: 13.32
ARIN Region origin ASes announcing only one prefix: 6888
ARIN Region transit ASes present in the Internet Routing Table: 1956
Average ARIN Region AS path length visible: 3.9
Max ARIN Region AS path length visible: 28
Number of ARIN region 32-bit ASNs visible in the Routing Table: 4097
Number of ARIN addresses announced to Internet: 1268366592
Equivalent to 75 /8s, 153 /16s and 189 /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: 240132
Total RIPE prefixes after maximum aggregation: 112357
RIPE Deaggregation factor: 2.14
Prefixes being announced from the RIPE address blocks: 236352
Unique aggregates announced from the RIPE address blocks: 144828
RIPE Region origin ASes present in the Internet Routing Table: 28038
RIPE Prefixes per ASN: 8.43
RIPE Region origin ASes announcing only one prefix: 12075
RIPE Region transit ASes present in the Internet Routing Table: 3911
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 29
Number of RIPE region 32-bit ASNs visible in the Routing Table: 10388
Number of RIPE addresses announced to Internet: 711569280
Equivalent to 42 /8s, 105 /16s and 175 /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
196608-213403
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: 111120
Total LACNIC prefixes after maximum aggregation: 26541
LACNIC Deaggregation factor: 4.19
Prefixes being announced from the LACNIC address blocks: 112192
Unique aggregates announced from the LACNIC address blocks: 47157
LACNIC Region origin ASes present in the Internet Routing Table: 10781
LACNIC Prefixes per ASN: 10.41
LACNIC Region origin ASes announcing only one prefix: 2660
LACNIC Region transit ASes present in the Internet Routing Table: 2104
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 29
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8434
Number of LACNIC addresses announced to Internet: 176567808
Equivalent to 10 /8s, 134 /16s and 54 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-272796 + 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: 26004
Total AfriNIC prefixes after maximum aggregation: 5208
AfriNIC Deaggregation factor: 4.99
Prefixes being announced from the AfriNIC address blocks: 33922
Unique aggregates announced from the AfriNIC address blocks: 11071
AfriNIC Region origin ASes present in the Internet Routing Table: 1536
AfriNIC Prefixes per ASN: 22.08
AfriNIC Region origin ASes announcing only one prefix: 538
AfriNIC Region transit ASes present in the Internet Routing Table: 305
Average AfriNIC Region AS path length visible: 5.1
Max AfriNIC Region AS path length visible: 36
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 867
Number of AfriNIC addresses announced to Internet: 108444928
Equivalent to 6 /8s, 118 /16s and 189 /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 8002 9000 57 CMNET-GD Guangdong Mobile Communication
7545 5812 785 676 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4711 4192 74 ERX-CERNET-BKB China Education and Rese
7552 3634 1330 20 VIETEL-AS-AP Viettel Group, VN
7713 3525 1023 56 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 2890 1897 56 VNPT-AS-VN VNPT Corp, VN
4766 2502 11120 582 KIXS-AS-KR Korea Telecom, KR
9498 2364 502 239 BBIL-AP BHARTI Airtel Ltd., IN
45090 2127 1198 75 CNNIC-TENCENT-NET-AP Shenzhen Tencent C
4755 2113 437 194 TATACOMM-AS TATA Communications formerl
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
16509 5538 9708 2458 AMAZON-02, US
11492 4656 308 753 CABLEONE, US
22773 4004 3033 282 ASN-CXA-ALL-CCI-22773-RDC, US
7155 3968 264 32 VIASAT-SP-BACKBONE, US
16625 3589 1852 2496 AKAMAI-AS, US
6327 3365 1313 63 SHAW, CA
30036 2578 373 204 MEDIACOM-ENTERPRISE-BUSINESS, US
209 2508 5029 449 CENTURYLINK-US-LEGACY-QWEST, US
5972 2295 488 811 DNIC-ASBLK-05800-06055, US
20115 2242 3032 504 CHARTER-20115, US
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 6837 1726 143 UNI2-AS, ES
20940 3784 3348 215 AKAMAI-ASN1, NL
8551 3312 378 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
39891 3269 187 23 ALJAWWALSTC-AS, SA
12389 2907 2279 895 ROSTELECOM-AS, RU
9009 2509 262 1336 M247, GB
34984 2228 357 599 TELLCOM-AS, TR
61317 1761 262 976 ASDETUK www.heficed.com, GB
58224 1634 890 568 TCI, IR
13188 1610 100 27 TRIOLAN, UA
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 8268 3457 577 Uninet S.A. de C.V., MX
10620 3416 523 672 Telmex Colombia S.A., CO
11830 2497 369 62 Instituto Costarricense de Electricidad
13999 1778 397 471 Mega Cable, S.A. de C.V., MX
6503 1515 359 477 Axtel, S.A.B. de C.V., MX
28573 1452 2300 229 CLARO S.A., BR
3816 1240 652 152 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
26615 1128 2351 134 TIM SA, BR
6147 1079 369 22 Telefonica del Peru S.A.A., PE
11172 957 111 70 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 1632 393 20 LINKdotNET-AS, EG
24835 1429 499 33 RAYA-AS, EG
36992 1311 1489 267 ETISALAT-MISR, EG
36903 1183 537 110 MT-MPLS, MA
29571 775 68 11 ORANGE-COTE-IVOIRE, CI
6713 613 1863 34 IAM-AS, MA
36935 579 522 40 Vodafone-, EG
15399 500 49 28 WANANCHI-, KE
37342 469 32 1 MOVITEL, MZ
2018 338 319 74 TENET-1, ZA
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 8268 3457 577 Uninet S.A. de C.V., MX
9808 8002 9000 57 CMNET-GD Guangdong Mobile Communication
12479 6837 1726 143 UNI2-AS, ES
7545 5812 785 676 TPG-INTERNET-AP TPG Telecom Limited, AU
16509 5538 9708 2458 AMAZON-02, US
4538 4711 4192 74 ERX-CERNET-BKB China Education and Rese
11492 4656 308 753 CABLEONE, US
22773 4004 3033 282 ASN-CXA-ALL-CCI-22773-RDC, US
7155 3968 264 32 VIASAT-SP-BACKBONE, US
20940 3784 3348 215 AKAMAI-ASN1, NL
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
9808 8002 7945 CMNET-GD Guangdong Mobile Communication Co.Ltd.
12479 6837 6694 UNI2-AS, ES
7545 5812 5136 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4711 4637 ERX-CERNET-BKB China Education and Research Net
7155 3968 3936 VIASAT-SP-BACKBONE, US
11492 4656 3903 CABLEONE, US
22773 4004 3722 ASN-CXA-ALL-CCI-22773-RDC, US
7552 3634 3614 VIETEL-AS-AP Viettel Group, VN
20940 3784 3569 AKAMAI-ASN1, NL
7713 3525 3469 TELKOMNET-AS-AP PT Telekomunikasi Indonesia, ID
Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US
393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, US
18604 UNALLOCATED 8.25.204.0/24 3356 LEVEL3, US
394936 UNALLOCATED 8.33.224.0/24 174 COGENT-174, US
54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, US
23061 UNALLOCATED 8.39.119.0/24 3356 LEVEL3, US
1782 UNALLOCATED 8.42.19.0/24 46887 LIGHTOWER, US
395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US
395056 UNALLOCATED 8.45.133.0/24 3356 LEVEL3, US
32306 UNALLOCATED 8.46.80.0/24 33652 CMCS, US
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
192.88.99.0/24 6939 HURRICANE, US
Complete listing at http://thyme.rand.apnic.net/current/data-dsua
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
23.132.208.0/24 Origin: 7850 CITYLINKFIBER, US
23.132.208.0/24 Transit: 15164 UPNLLC, US
23.141.0.0/24 Origin: 395350 UNASSIGNED
23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US
23.177.96.0/24 Origin: 397300 UNASSIGNED
23.177.96.0/24 Transit: 33387 NOCIX, US
27.100.7.0/24 Origin: 56096 UNASSIGNED
27.100.7.0/24 Transit: 45455 TH-2S1N-AP Two S One N Co Ltd, Internet
41.57.124.0/22 Origin: 37442 UNASSIGNED
41.57.124.0/22 Transit: 174 COGENT-174, 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 /8:16 /9:13 /10:41 /11:101 /12:304
/13:589 /14:1193 /15:2002 /16:13396 /17:8239 /18:14005
/19:25397 /20:42475 /21:50649 /22:106957 /23:91891 /24:502824
/25:1545 /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 5762 6837 UNI2-AS, ES
11492 3611 4656 CABLEONE, US
6327 3176 3365 SHAW, CA
7155 3056 3968 VIASAT-SP-BACKBONE, US
22773 2990 4004 ASN-CXA-ALL-CCI-22773-RDC, US
39891 2805 3269 ALJAWWALSTC-AS, SA
8551 2778 3312 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
8151 2763 8268 Uninet S.A. de C.V., MX
30036 2231 2578 MEDIACOM-ENTERPRISE-BUSINESS, US
11830 1931 2497 Instituto Costarricense de Electricidad y Telec
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1909 2:1100 3:145 4:20 5:3598 6:84
7:5 8:1547 9:1 11:164 12:1738 13:390
14:2281 15:103 16:23 17:351 18:108 20:126
21:4 22:188 23:5076 24:2449 25:2 27:2515
29:19 31:2365 32:113 34:1 35:46 36:1734
37:3799 38:2219 39:637 40:165 41:3819 42:975
43:2068 44:288 45:15383 46:3695 47:353 48:7
49:1626 50:1814 51:100 52:1284 54:248 55:748
56:4 57:53 58:1727 59:1197 60:932 61:2297
62:2308 63:1962 64:5369 65:2358 66:5003 67:2868
68:1167 69:4114 70:1365 71:677 72:3163 74:2624
75:1501 76:696 77:2044 78:1678 79:2630 80:1868
81:1553 82:1367 83:1150 84:1308 85:2743 86:714
87:1823 88:973 89:3040 90:517 91:7384 92:1820
93:2555 94:3135 95:3502 96:1300 97:345 98:977
99:958 100:76 101:1057 102:1658 103:26857 104:4008
105:431 106:829 107:2331 108:728 109:3896 110:2040
111:3182 112:1933 113:1421 114:1472 115:1923 116:1898
117:2411 118:2307 119:1894 120:1546 121:1075 122:2520
123:2160 124:1599 125:2068 128:1343 129:1363 130:880
131:2024 132:772 133:362 134:1813 135:306 136:776
137:845 138:2394 139:1187 140:760 141:1209 142:1209
143:1335 144:1265 145:324 146:1499 147:1394 148:2155
149:1495 150:822 151:1082 152:1647 153:428 154:3018
155:1332 156:1760 157:1223 158:980 159:2014 160:2354
161:1250 162:3385 163:1097 164:1553 165:1428 166:597
167:1784 168:3645 169:696 170:4333 171:806 172:2744
173:2872 174:1005 175:1108 176:3258 177:4441 178:2993
179:1875 180:2264 181:2651 182:3219 183:2032 184:2420
185:18749 186:4239 187:3094 188:3325 189:2816 190:8676
191:1373 192:10709 193:8334 194:6765 195:4852 196:2863
197:2114 198:6029 199:5991 200:7344 201:5172 202:10580
203:10056 204:4602 205:3363 206:3743 207:3363 208:4031
209:4709 210:4186 211:2353 212:3749 213:3428 214:1165
215:64 216:6349 217:2586 218:1214 219:680 220:1953
221:968 222:855 223:2034
End of report
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