[SANOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Apr 16 18:02:39 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 17 Apr, 2021
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 856506
Prefixes after maximum aggregation (per Origin AS): 324269
Deaggregation factor: 2.64
Unique aggregates announced (without unneeded subnets): 406158
Total ASes present in the Internet Routing Table: 71094
Prefixes per ASN: 12.05
Origin-only ASes present in the Internet Routing Table: 61156
Origin ASes announcing only one prefix: 25289
Transit ASes present in the Internet Routing Table: 9938
Transit-only ASes present in the Internet Routing Table: 311
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 38
Max AS path prepend of ASN ( 37385) 33
Prefixes from unregistered ASNs in the Routing Table: 1009
Number of instances of unregistered ASNs: 1016
Number of 32-bit ASNs allocated by the RIRs: 35730
Number of 32-bit ASNs visible in the Routing Table: 29751
Prefixes from 32-bit ASNs in the Routing Table: 138298
Number of bogon 32-bit ASNs visible in the Routing Table: 22
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 522
Number of addresses announced to Internet: 2948654208
Equivalent to 175 /8s, 192 /16s and 228 /24s
Percentage of available address space announced: 79.6
Percentage of allocated address space announced: 79.6
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: 290756
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 226747
Total APNIC prefixes after maximum aggregation: 65533
APNIC Deaggregation factor: 3.46
Prefixes being announced from the APNIC address blocks: 222874
Unique aggregates announced from the APNIC address blocks: 89504
APNIC Region origin ASes present in the Internet Routing Table: 11485
APNIC Prefixes per ASN: 19.41
APNIC Region origin ASes announcing only one prefix: 3285
APNIC Region transit ASes present in the Internet Routing Table: 1637
Average APNIC Region AS path length visible: 4.6
Max APNIC Region AS path length visible: 30
Number of APNIC region 32-bit ASNs visible in the Routing Table: 6646
Number of APNIC addresses announced to Internet: 771967232
Equivalent to 46 /8s, 3 /16s and 73 /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, 131072-143673
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: 245811
Total ARIN prefixes after maximum aggregation: 112965
ARIN Deaggregation factor: 2.18
Prefixes being announced from the ARIN address blocks: 246236
Unique aggregates announced from the ARIN address blocks: 117767
ARIN Region origin ASes present in the Internet Routing Table: 18794
ARIN Prefixes per ASN: 13.10
ARIN Region origin ASes announcing only one prefix: 6828
ARIN Region transit ASes present in the Internet Routing Table: 1937
Average ARIN Region AS path length visible: 3.9
Max ARIN Region AS path length visible: 30
Number of ARIN region 32-bit ASNs visible in the Routing Table: 3828
Number of ARIN addresses announced to Internet: 1181045760
Equivalent to 70 /8s, 101 /16s and 84 /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: 244219
Total RIPE prefixes after maximum aggregation: 113807
RIPE Deaggregation factor: 2.15
Prefixes being announced from the RIPE address blocks: 240165
Unique aggregates announced from the RIPE address blocks: 141357
RIPE Region origin ASes present in the Internet Routing Table: 27886
RIPE Prefixes per ASN: 8.61
RIPE Region origin ASes announcing only one prefix: 11977
RIPE Region transit ASes present in the Internet Routing Table: 3881
Average RIPE Region AS path length visible: 4.4
Max RIPE Region AS path length visible: 38
Number of RIPE region 32-bit ASNs visible in the Routing Table: 10121
Number of RIPE addresses announced to Internet: 711148416
Equivalent to 42 /8s, 99 /16s and 67 /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: 112880
Total LACNIC prefixes after maximum aggregation: 26286
LACNIC Deaggregation factor: 4.29
Prefixes being announced from the LACNIC address blocks: 114025
Unique aggregates announced from the LACNIC address blocks: 47055
LACNIC Region origin ASes present in the Internet Routing Table: 10744
LACNIC Prefixes per ASN: 10.61
LACNIC Region origin ASes announcing only one prefix: 2705
LACNIC Region transit ASes present in the Internet Routing Table: 2026
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 33
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8358
Number of LACNIC addresses announced to Internet: 176329728
Equivalent to 10 /8s, 130 /16s and 148 /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: 25839
Total AfriNIC prefixes after maximum aggregation: 4925
AfriNIC Deaggregation factor: 5.25
Prefixes being announced from the AfriNIC address blocks: 32684
Unique aggregates announced from the AfriNIC address blocks: 10000
AfriNIC Region origin ASes present in the Internet Routing Table: 1453
AfriNIC Prefixes per ASN: 22.49
AfriNIC Region origin ASes announcing only one prefix: 494
AfriNIC Region transit ASes present in the Internet Routing Table: 292
Average AfriNIC Region AS path length visible: 5.2
Max AfriNIC Region AS path length visible: 38
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 798
Number of AfriNIC addresses announced to Internet: 107735808
Equivalent to 6 /8s, 107 /16s and 235 /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 6292 8996 55 CMNET-GD Guangdong Mobile Communication
7545 5732 783 674 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4740 4192 74 ERX-CERNET-BKB China Education and Rese
7713 3524 1022 55 TELKOMNET-AS-AP PT Telekomunikasi Indon
7552 3477 1330 21 VIETEL-AS-AP Viettel Group, VN
45899 2899 1896 54 VNPT-AS-VN VNPT Corp, VN
4766 2433 11104 565 KIXS-AS-KR Korea Telecom, KR
9498 2328 473 234 BBIL-AP BHARTI Airtel Ltd., IN
4755 2116 441 190 TATACOMM-AS TATA Communications formerl
45090 2099 1197 72 CNNIC-TENCENT-NET-AP Shenzhen Tencent C
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 4983 9329 2237 AMAZON-02, US
11492 4747 315 716 CABLEONE, US
7155 4030 264 32 VIASAT-SP-BACKBONE, US
22773 3918 3005 247 ASN-CXA-ALL-CCI-22773-RDC, US
16625 3389 1758 2415 AKAMAI-AS, US
6327 3359 1317 70 SHAW, CA
30036 2562 374 93 MEDIACOM-ENTERPRISE-BUSINESS, US
209 2528 5053 486 CENTURYLINK-US-LEGACY-QWEST, US
5650 2343 2996 1636 FRONTIER-FRTR, US
5972 2224 450 782 DNIC-ASBLK-05800-06055, 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
47331 7790 1044 3499 TTNET, TR
12479 6436 1724 143 UNI2-AS, ES
20940 3573 3347 204 AKAMAI-ASN1, NL
39891 3266 187 22 ALJAWWALSTC-AS, SA
8551 3248 379 41 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
12389 2905 2284 899 ROSTELECOM-AS, RU
9009 2390 246 1288 M247, GB
34984 2215 357 587 TELLCOM-AS, TR
13188 1610 100 31 TRIOLAN, UA
58224 1577 883 575 TCI, IR
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 8499 3473 572 Uninet S.A. de C.V., MX
10620 3409 526 607 Telmex Colombia S.A., CO
11830 2493 369 62 Instituto Costarricense de Electricidad
7303 1897 2063 73 Telecom Argentina S.A., AR
13999 1663 447 430 Mega Cable, S.A. de C.V., MX
6503 1443 311 475 Axtel, S.A.B. de C.V., MX
28573 1390 2274 223 CLARO S.A., BR
3816 1224 640 150 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
6147 1128 377 39 Telefonica del Peru S.A.A., PE
11664 1003 212 401 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 1585 393 22 LINKdotNET-AS, EG
24835 1443 486 27 RAYA-AS, EG
36992 1200 1537 176 ETISALAT-MISR, EG
36903 1188 529 109 MT-MPLS, MA
29571 728 68 11 ORANGE-COTE-IVOIRE, CI
6713 548 1863 34 IAM-AS, MA
36935 514 522 40 Vodafone-, EG
37342 487 32 1 MOVITEL, MZ
15399 476 47 17 WANANCHI-, KE
23889 439 232 16 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 8499 3473 572 Uninet S.A. de C.V., MX
47331 7790 1044 3499 TTNET, TR
12479 6436 1724 143 UNI2-AS, ES
9808 6292 8996 55 CMNET-GD Guangdong Mobile Communication
7545 5732 783 674 TPG-INTERNET-AP TPG Telecom Limited, AU
16509 4983 9329 2237 AMAZON-02, US
11492 4747 315 716 CABLEONE, US
4538 4740 4192 74 ERX-CERNET-BKB China Education and Rese
7155 4030 264 32 VIASAT-SP-BACKBONE, US
22773 3918 3005 247 ASN-CXA-ALL-CCI-22773-RDC, US
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
12479 6436 6293 UNI2-AS, ES
9808 6292 6237 CMNET-GD Guangdong Mobile Communication Co.Ltd.
7545 5732 5058 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4740 4666 ERX-CERNET-BKB China Education and Research Net
47331 7790 4291 TTNET, TR
11492 4747 4031 CABLEONE, US
7155 4030 3998 VIASAT-SP-BACKBONE, US
22773 3918 3671 ASN-CXA-ALL-CCI-22773-RDC, US
7713 3524 3469 TELKOMNET-AS-AP PT Telekomunikasi Indonesia, ID
7552 3477 3456 VIETEL-AS-AP Viettel Group, VN
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
211471 UNALLOCATED 5.59.76.0/24 33932 EVERYWAN-AS everyWAN, ES
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
23061 UNALLOCATED 8.39.119.0/24 3356 LEVEL3, US
395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US
46766 UNALLOCATED 8.44.208.0/24 3356 LEVEL3, US
40544 UNALLOCATED 12.0.33.0/24 6461 ZAYO-6461, US
46505 UNALLOCATED 12.7.131.0/24 7018 ATT-INTERNET4, 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
Transit: 11426 TWC-11426-CAROLINAS, US
23.142.80.0/24 Origin: 397881 STINGERS, US
Transit: 398481 REDMERCURY, US
27.100.7.0/24 Origin: 56096 UNASSIGNED
Transit: 45455 TH-2S1N-AP Two S One N Co Ltd, Internet
27.126.156.0/22 Origin: 55827 UNASSIGNED
Transit: 9930 TTNET-MY TIME dotCom Berhad No. 14, Jala
27.126.156.0/23 Origin: 55827 UNASSIGNED
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 /8:12 /9:12 /10:40 /11:102 /12:296
/13:585 /14:1192 /15:1950 /16:13550 /17:8359 /18:13875
/19:25829 /20:42484 /21:51436 /22:106580 /23:91139 /24:497665
/25:1400 /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
47331 6970 7790 TTNET, TR
12479 5388 6436 UNI2-AS, ES
11492 3801 4747 CABLEONE, US
6327 3166 3359 SHAW, CA
7155 3118 4030 VIASAT-SP-BACKBONE, US
8151 3068 8499 Uninet S.A. de C.V., MX
22773 2951 3918 ASN-CXA-ALL-CCI-22773-RDC, US
39891 2801 3266 ALJAWWALSTC-AS, SA
8551 2712 3248 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
30036 2238 2562 MEDIACOM-ENTERPRISE-BUSINESS, US
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1878 2:1106 3:110 4:19 5:3557 6:64
7:5 8:1511 9:1 11:36 12:1749 13:359
14:2301 15:74 16:15 17:320 18:93 20:128
22:188 23:4648 24:2396 25:2 27:2505 29:19
31:2326 32:113 34:2 35:40 36:1309 37:3763
38:2067 39:610 40:161 41:3849 42:925 43:2126
44:238 45:14914 46:3664 47:319 49:1597 50:1766
51:92 52:1217 54:220 55:758 56:8 57:57
58:1726 59:1200 60:888 61:2396 62:2217 63:1960
64:5300 65:2385 66:5153 67:2871 68:1151 69:4058
70:1398 71:689 72:3181 74:2591 75:1483 76:686
77:2031 78:3696 79:2423 80:1865 81:1652 82:1345
83:1121 84:1264 85:3354 86:705 87:1774 88:2705
89:3014 90:433 91:7324 92:1744 93:2539 94:3101
95:4433 96:1259 97:345 98:986 99:969 100:90
101:1048 102:1368 103:25945 104:3716 105:435 106:730
107:2245 108:710 109:3986 110:2000 111:2942 112:1968
113:1622 114:1460 115:1886 116:1899 117:2303 118:2344
119:1898 120:1105 121:1079 122:2266 123:2217 124:1573
125:2088 128:1367 129:956 130:838 131:2043 132:756
133:355 134:1614 135:295 136:749 137:925 138:2304
139:1182 140:737 141:1189 142:1152 143:1254 144:1257
145:330 146:1395 147:1300 148:2212 149:1416 150:807
151:1079 152:1551 153:394 154:2342 155:1320 156:1487
157:1169 158:919 159:2042 160:2102 161:1125 162:3289
163:976 164:1501 165:1344 166:596 167:1778 168:3576
169:669 170:4254 171:764 172:2129 173:2939 174:986
175:1091 176:3114 177:4366 178:2896 179:1939 180:2317
181:2584 182:3220 183:1836 184:2415 185:18153 186:4214
187:3215 188:3299 189:2850 190:8887 191:1431 192:10665
193:7995 194:6583 195:4727 196:2883 197:2370 198:6049
199:6020 200:7392 201:5356 202:10601 203:10077 204:4647
205:3348 206:3541 207:3366 208:4009 209:4654 210:4252
211:2197 212:3695 213:3343 214:1225 215:61 216:6174
217:2530 218:1159 219:708 220:2081 221:973 222:971
223:1859
End of report
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