[menog] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Sep 3 18:02:54 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 04 Sep, 2021
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 861383
Prefixes after maximum aggregation (per Origin AS): 325835
Deaggregation factor: 2.64
Unique aggregates announced (without unneeded subnets): 413595
Total ASes present in the Internet Routing Table: 71886
Prefixes per ASN: 11.98
Origin-only ASes present in the Internet Routing Table: 61764
Origin ASes announcing only one prefix: 25516
Transit ASes present in the Internet Routing Table: 10122
Transit-only ASes present in the Internet Routing Table: 327
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: 1198
Number of instances of unregistered ASNs: 1203
Number of 32-bit ASNs allocated by the RIRs: 37120
Number of 32-bit ASNs visible in the Routing Table: 30836
Prefixes from 32-bit ASNs in the Routing Table: 143295
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: 474
Number of addresses announced to Internet: 3037773184
Equivalent to 181 /8s, 16 /16s and 189 /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: 285963
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 231406
Total APNIC prefixes after maximum aggregation: 66017
APNIC Deaggregation factor: 3.51
Prefixes being announced from the APNIC address blocks: 226886
Unique aggregates announced from the APNIC address blocks: 90889
APNIC Region origin ASes present in the Internet Routing Table: 11911
APNIC Prefixes per ASN: 19.05
APNIC Region origin ASes announcing only one prefix: 3384
APNIC Region transit ASes present in the Internet Routing Table: 1680
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: 7061
Number of APNIC addresses announced to Internet: 772799232
Equivalent to 46 /8s, 15 /16s and 251 /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: 251706
Total ARIN prefixes after maximum aggregation: 115063
ARIN Deaggregation factor: 2.19
Prefixes being announced from the ARIN address blocks: 251565
Unique aggregates announced from the ARIN address blocks: 119692
ARIN Region origin ASes present in the Internet Routing Table: 18899
ARIN Prefixes per ASN: 13.31
ARIN Region origin ASes announcing only one prefix: 6880
ARIN Region transit ASes present in the Internet Routing Table: 1950
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: 4095
Number of ARIN addresses announced to Internet: 1268289792
Equivalent to 75 /8s, 152 /16s and 145 /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: 239210
Total RIPE prefixes after maximum aggregation: 112205
RIPE Deaggregation factor: 2.13
Prefixes being announced from the RIPE address blocks: 235630
Unique aggregates announced from the RIPE address blocks: 144588
RIPE Region origin ASes present in the Internet Routing Table: 28029
RIPE Prefixes per ASN: 8.41
RIPE Region origin ASes announcing only one prefix: 12060
RIPE Region transit ASes present in the Internet Routing Table: 3908
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: 10374
Number of RIPE addresses announced to Internet: 711223424
Equivalent to 42 /8s, 100 /16s and 104 /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: 111737
Total LACNIC prefixes after maximum aggregation: 26602
LACNIC Deaggregation factor: 4.20
Prefixes being announced from the LACNIC address blocks: 112763
Unique aggregates announced from the LACNIC address blocks: 47115
LACNIC Region origin ASes present in the Internet Routing Table: 10789
LACNIC Prefixes per ASN: 10.45
LACNIC Region origin ASes announcing only one prefix: 2661
LACNIC Region transit ASes present in the Internet Routing Table: 2103
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: 8445
Number of LACNIC addresses announced to Internet: 176555776
Equivalent to 10 /8s, 134 /16s and 7 /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: 26125
Total AfriNIC prefixes after maximum aggregation: 5173
AfriNIC Deaggregation factor: 5.05
Prefixes being announced from the AfriNIC address blocks: 34065
Unique aggregates announced from the AfriNIC address blocks: 10894
AfriNIC Region origin ASes present in the Internet Routing Table: 1527
AfriNIC Prefixes per ASN: 22.31
AfriNIC Region origin ASes announcing only one prefix: 531
AfriNIC Region transit ASes present in the Internet Routing Table: 310
Average AfriNIC Region AS path length visible: 5.1
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 861
Number of AfriNIC addresses announced to Internet: 108567040
Equivalent to 6 /8s, 120 /16s and 154 /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 7950 9000 57 CMNET-GD Guangdong Mobile Communication
7545 5813 785 675 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4711 4192 74 ERX-CERNET-BKB China Education and Rese
7552 3610 1330 20 VIETEL-AS-AP Viettel Group, VN
7713 3537 1023 56 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 2805 1897 56 VNPT-AS-VN VNPT Corp, VN
4766 2500 11119 583 KIXS-AS-KR Korea Telecom, KR
9498 2360 502 238 BBIL-AP BHARTI Airtel Ltd., IN
45090 2129 1198 75 CNNIC-TENCENT-NET-AP Shenzhen Tencent C
4755 2117 437 195 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 5554 9711 2460 AMAZON-02, US
11492 4648 307 724 CABLEONE, US
22773 3999 3033 281 ASN-CXA-ALL-CCI-22773-RDC, US
7155 3968 264 32 VIASAT-SP-BACKBONE, US
16625 3591 1854 2489 AKAMAI-AS, US
6327 3365 1313 63 SHAW, CA
30036 2582 374 185 MEDIACOM-ENTERPRISE-BUSINESS, US
209 2504 5028 447 CENTURYLINK-US-LEGACY-QWEST, US
5972 2296 488 811 DNIC-ASBLK-05800-06055, US
20115 2244 3032 506 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 6804 1726 143 UNI2-AS, ES
20940 3782 3348 216 AKAMAI-ASN1, NL
39891 3269 187 23 ALJAWWALSTC-AS, SA
8551 2965 378 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
12389 2904 2278 894 ROSTELECOM-AS, RU
9009 2505 262 1341 M247, GB
34984 2217 356 593 TELLCOM-AS, TR
61317 1755 264 970 ASDETUK www.heficed.com, GB
58224 1632 889 567 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 8821 3462 578 Uninet S.A. de C.V., MX
10620 3409 523 675 Telmex Colombia S.A., CO
11830 2500 369 62 Instituto Costarricense de Electricidad
13999 1816 415 476 Mega Cable, S.A. de C.V., MX
6503 1513 359 477 Axtel, S.A.B. de C.V., MX
28573 1453 2300 230 CLARO S.A., BR
3816 1240 652 152 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
26615 1103 2351 134 TIM SA, BR
6147 1085 369 22 Telefonica del Peru S.A.A., PE
11664 978 187 435 Techtel LMDS Comunicaciones Interactiva
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 1463 499 33 RAYA-AS, EG
36992 1309 1489 267 ETISALAT-MISR, EG
36903 1183 537 110 MT-MPLS, MA
29571 780 68 11 ORANGE-COTE-IVOIRE, CI
6713 613 1863 34 IAM-AS, MA
36935 579 522 40 Vodafone-, EG
15399 499 49 28 WANANCHI-, KE
37342 469 32 1 MOVITEL, MZ
2018 337 319 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 8821 3462 578 Uninet S.A. de C.V., MX
9808 7950 9000 57 CMNET-GD Guangdong Mobile Communication
12479 6804 1726 143 UNI2-AS, ES
7545 5813 785 675 TPG-INTERNET-AP TPG Telecom Limited, AU
16509 5554 9711 2460 AMAZON-02, US
4538 4711 4192 74 ERX-CERNET-BKB China Education and Rese
11492 4648 307 724 CABLEONE, US
22773 3999 3033 281 ASN-CXA-ALL-CCI-22773-RDC, US
7155 3968 264 32 VIASAT-SP-BACKBONE, US
20940 3782 3348 216 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 7950 7893 CMNET-GD Guangdong Mobile Communication Co.Ltd.
12479 6804 6661 UNI2-AS, ES
7545 5813 5138 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 4648 3924 CABLEONE, US
22773 3999 3718 ASN-CXA-ALL-CCI-22773-RDC, US
7552 3610 3590 VIETEL-AS-AP Viettel Group, VN
20940 3782 3566 AKAMAI-ASN1, NL
7713 3537 3481 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
40544 UNALLOCATED 12.0.33.0/24 6461 ZAYO-6461, US
15132 UNALLOCATED 12.9.150.0/24 1239 SPRINTLINK, 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
23.141.0.0/24 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
27.126.156.0/22 Origin: 55827 UNASSIGNED
27.126.156.0/22 Transit: 9930 TTNET-MY TIME dotCom Berhad No. 14, Jala
27.126.156.0/23 Origin: 55827 UNASSIGNED
27.126.156.0/23 Transit: 9930 TTNET-MY TIME dotCom Berhad No. 14, Jala
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 /12:303
/13:589 /14:1195 /15:2004 /16:13393 /17:8239 /18:13977
/19:25389 /20:42424 /21:50785 /22:107074 /23:91999 /24:502299
/25:1542 /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 5738 6804 UNI2-AS, ES
11492 3613 4648 CABLEONE, US
6327 3176 3365 SHAW, CA
8151 3175 8821 Uninet S.A. de C.V., MX
7155 3056 3968 VIASAT-SP-BACKBONE, US
22773 2986 3999 ASN-CXA-ALL-CCI-22773-RDC, US
39891 2805 3269 ALJAWWALSTC-AS, SA
8551 2431 2965 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
30036 2235 2582 MEDIACOM-ENTERPRISE-BUSINESS, US
11830 1933 2500 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)
----------------------------------------------
1:1908 2:1102 3:143 4:20 5:3596 6:84
7:5 8:1533 9:1 11:164 12:1742 13:389
14:2290 15:103 16:23 17:350 18:110 20:124
21:4 22:188 23:5040 24:2447 25:2 27:2513
29:19 31:2359 32:113 34:1 35:47 36:1732
37:3792 38:2204 39:640 40:165 41:3831 42:970
43:2076 44:286 45:15421 46:3679 47:349 48:7
49:1624 50:1820 51:100 52:1288 54:249 55:741
56:4 57:53 58:1727 59:1198 60:933 61:2295
62:2309 63:1959 64:5358 65:2361 66:4996 67:2865
68:1168 69:4107 70:1366 71:677 72:3164 74:2620
75:1499 76:696 77:2039 78:1673 79:2283 80:1868
81:1543 82:1364 83:1151 84:1301 85:2755 86:716
87:1816 88:970 89:3017 90:515 91:7372 92:1810
93:2551 94:3129 95:3502 96:1305 97:345 98:978
99:957 100:76 101:1059 102:1626 103:26805 104:4003
105:431 106:817 107:2322 108:728 109:3894 110:2038
111:3157 112:1939 113:1426 114:1469 115:1920 116:1895
117:2404 118:2338 119:1883 120:1540 121:1073 122:2517
123:2160 124:1599 125:2068 128:1341 129:1374 130:878
131:2014 132:775 133:362 134:1796 135:305 136:782
137:846 138:2390 139:1188 140:753 141:1211 142:1211
143:1333 144:1261 145:323 146:1496 147:1398 148:2166
149:1496 150:819 151:1080 152:1650 153:427 154:2993
155:1321 156:1756 157:1224 158:976 159:2015 160:2362
161:1237 162:3383 163:1095 164:1557 165:1424 166:597
167:1782 168:3645 169:696 170:4385 171:805 172:2741
173:2873 174:1007 175:1105 176:3223 177:4444 178:2974
179:1856 180:2261 181:2651 182:3218 183:2023 184:2414
185:18723 186:4265 187:3179 188:3315 189:2913 190:8671
191:1368 192:10703 193:8324 194:6747 195:4833 196:2907
197:2120 198:6015 199:5994 200:7358 201:5245 202:10577
203:10058 204:4588 205:3376 206:3767 207:3344 208:4022
209:4702 210:4183 211:2358 212:3750 213:3438 214:1158
215:64 216:6337 217:2581 218:1218 219:680 220:1953
221:964 222:857 223:2030
End of report
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