[SANOG] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Feb 4 18:03:08 UTC 2022
This is an automated weekly mailing describing the state of the Global
IPv4 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 https://thyme.apnic.net.
If you have any comments please contact Philip Smith <pfsinoz at gmail.com>.
IPv4 Routing Table Report 04:00 +10GMT Sat 05 Feb, 2022
BGP Table (Global) as seen in Japan.
Report Website: https://thyme.apnic.net
Detailed Analysis: https://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 887718
Prefixes after maximum aggregation (per Origin AS): 334257
Deaggregation factor: 2.66
Unique aggregates announced (without unneeded subnets): 427201
Total ASes present in the Internet Routing Table: 72732
Prefixes per ASN: 12.21
Origin-only ASes present in the Internet Routing Table: 62417
Origin ASes announcing only one prefix: 25709
Transit ASes present in the Internet Routing Table: 10315
Transit-only ASes present in the Internet Routing Table: 368
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 53
Max AS path prepend of ASN (265020) 50
Prefixes from unregistered ASNs in the Routing Table: 901
Number of instances of unregistered ASNs: 904
Number of 32-bit ASNs allocated by the RIRs: 38493
Number of 32-bit ASNs visible in the Routing Table: 32029
Prefixes from 32-bit ASNs in the Routing Table: 149194
Number of bogon 32-bit ASNs visible in the Routing Table: 23
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 521
Number of addresses announced to Internet: 3069178880
Equivalent to 182 /8s, 239 /16s and 244 /24s
Percentage of available address space announced: 82.9
Percentage of allocated address space announced: 82.9
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: 300352
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 233493
Total APNIC prefixes after maximum aggregation: 65801
APNIC Deaggregation factor: 3.55
Prefixes being announced from the APNIC address blocks: 228328
Unique aggregates announced from the APNIC address blocks: 94107
APNIC Region origin ASes present in the Internet Routing Table: 12342
APNIC Prefixes per ASN: 18.50
APNIC Region origin ASes announcing only one prefix: 3527
APNIC Region transit ASes present in the Internet Routing Table: 1722
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 29
Number of APNIC region 32-bit ASNs visible in the Routing Table: 7528
Number of APNIC addresses announced to Internet: 774726272
Equivalent to 46 /8s, 45 /16s and 98 /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, 131072-151865
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: 258125
Total ARIN prefixes after maximum aggregation: 118895
ARIN Deaggregation factor: 2.17
Prefixes being announced from the ARIN address blocks: 258153
Unique aggregates announced from the ARIN address blocks: 123285
ARIN Region origin ASes present in the Internet Routing Table: 18943
ARIN Prefixes per ASN: 13.63
ARIN Region origin ASes announcing only one prefix: 6852
ARIN Region transit ASes present in the Internet Routing Table: 1954
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 35
Number of ARIN region 32-bit ASNs visible in the Routing Table: 4327
Number of ARIN addresses announced to Internet: 1295979520
Equivalent to 77 /8s, 63 /16s and 20 /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: 253216
Total RIPE prefixes after maximum aggregation: 116221
RIPE Deaggregation factor: 2.18
Prefixes being announced from the RIPE address blocks: 249643
Unique aggregates announced from the RIPE address blocks: 148914
RIPE Region origin ASes present in the Internet Routing Table: 28172
RIPE Prefixes per ASN: 8.86
RIPE Region origin ASes announcing only one prefix: 12129
RIPE Region transit ASes present in the Internet Routing Table: 3967
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 32
Number of RIPE region 32-bit ASNs visible in the Routing Table: 10630
Number of RIPE addresses announced to Internet: 713358208
Equivalent to 42 /8s, 132 /16s and 251 /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: 114401
Total LACNIC prefixes after maximum aggregation: 27310
LACNIC Deaggregation factor: 4.19
Prefixes being announced from the LACNIC address blocks: 115123
Unique aggregates announced from the LACNIC address blocks: 48569
LACNIC Region origin ASes present in the Internet Routing Table: 10937
LACNIC Prefixes per ASN: 10.53
LACNIC Region origin ASes announcing only one prefix: 2652
LACNIC Region transit ASes present in the Internet Routing Table: 2191
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 53
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8622
Number of LACNIC addresses announced to Internet: 176621056
Equivalent to 10 /8s, 135 /16s and 6 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-273820 + 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: 27582
Total AfriNIC prefixes after maximum aggregation: 5352
AfriNIC Deaggregation factor: 5.15
Prefixes being announced from the AfriNIC address blocks: 35950
Unique aggregates announced from the AfriNIC address blocks: 11864
AfriNIC Region origin ASes present in the Internet Routing Table: 1588
AfriNIC Prefixes per ASN: 22.64
AfriNIC Region origin ASes announcing only one prefix: 549
AfriNIC Region transit ASes present in the Internet Routing Table: 312
Average AfriNIC Region AS path length visible: 5.1
Max AfriNIC Region AS path length visible: 34
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 922
Number of AfriNIC addresses announced to Internet: 108166912
Equivalent to 6 /8s, 114 /16s and 127 /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 9057 8886 46 CHINAMOBILE-CN China Mobile Communicati
7545 5865 788 693 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4682 4192 74 ERX-CERNET-BKB China Education and Rese
7552 3606 1330 20 VIETEL-AS-AP Viettel Group, VN
7713 3483 1038 51 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 3434 1880 57 VNPT-AS-VN VNPT Corp, VN
4766 2541 11122 618 KIXS-AS-KR Korea Telecom, KR
9498 2315 475 235 BBIL-AP BHARTI Airtel Ltd., IN
45090 2170 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute
4755 2117 429 199 TATACOMM-AS TATA Communications formerl
Complete listing at https://thyme.apnic.net/current/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 6222 10151 2650 AMAZON-02, US
11492 4464 296 845 CABLEONE, US
22773 3968 3028 368 ASN-CXA-ALL-CCI-22773-RDC, US
7155 3903 264 30 VIASAT-SP-BACKBONE, US
16625 3657 1887 2563 AKAMAI-AS, US
6327 3366 1318 63 SHAW, CA
749 2887 50780 2143 DNIC-AS-00749, US
30036 2608 374 142 MEDIACOM-ENTERPRISE-BUSINESS, US
209 2521 4962 427 CENTURYLINK-US-LEGACY-QWEST, US
20115 2249 3035 508 CHARTER-20115, US
Complete listing at https://thyme.apnic.net/current/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
12479 6809 1720 154 UNI2-AS, ES
9121 6692 1692 17 TTNET, TR
8551 4004 378 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
20940 3882 3347 210 AKAMAI-ASN1, NL
39891 3274 188 25 ALJAWWALSTC-AS, SA
12389 2955 2274 906 ROSTELECOM-AS, RU
9009 2474 250 1285 M247, GB
34984 2218 357 602 TELLCOM-AS, TR
47331 1953 312 1490 TTNET, TR
58224 1789 928 582 TCI, IR
Complete listing at https://thyme.apnic.net/current/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 10617 3434 566 Uninet S.A. de C.V., MX
10620 3454 518 721 Telmex Colombia S.A., CO
11830 2460 369 62 Instituto Costarricense de Electricidad
13999 1662 284 469 Mega Cable, S.A. de C.V., MX
6503 1441 354 524 Axtel, S.A.B. de C.V., MX
28573 1404 2331 247 CLARO S.A., BR
3816 1248 659 145 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
26615 1136 2350 139 TIM SA, BR
6147 1095 369 21 Telefonica del Peru S.A.A., PE
11664 1001 191 448 Techtel LMDS Comunicaciones Interactiva
Complete listing at https://thyme.apnic.net/current/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 1605 393 21 LINKdotNET-AS, EG
24835 1546 515 32 RAYA-AS, EG
36992 1299 1518 262 ETISALAT-MISR, EG
36903 1195 543 114 MT-MPLS, MA
29571 895 63 57 ORANGE-COTE-IVOIRE, CI
36935 735 521 39 Vodafone-, EG
6713 612 1863 34 IAM-AS, MA
15399 518 50 33 WANANCHI-, KE
37342 468 32 1 MOVITEL, MZ
23889 422 232 16 MauritiusTelecom, MU
Complete listing at https://thyme.apnic.net/current/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 10617 3434 566 Uninet S.A. de C.V., MX
9808 9057 8886 46 CHINAMOBILE-CN China Mobile Communicati
12479 6809 1720 154 UNI2-AS, ES
9121 6692 1692 17 TTNET, TR
16509 6222 10151 2650 AMAZON-02, US
7545 5865 788 693 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4682 4192 74 ERX-CERNET-BKB China Education and Rese
11492 4464 296 845 CABLEONE, US
8551 4004 378 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
22773 3968 3028 368 ASN-CXA-ALL-CCI-22773-RDC, US
Complete listing at https://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
9808 9057 9011 CHINAMOBILE-CN China Mobile Communications Grou
9121 6692 6675 TTNET, TR
12479 6809 6655 UNI2-AS, ES
7545 5865 5172 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4682 4608 ERX-CERNET-BKB China Education and Research Net
8551 4004 3965 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
7155 3903 3873 VIASAT-SP-BACKBONE, US
20940 3882 3672 AKAMAI-ASN1, NL
11492 4464 3619 CABLEONE, US
22773 3968 3600 ASN-CXA-ALL-CCI-22773-RDC, US
Complete listing at https://thyme.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
46990 UNALLOCATED 8.5.242.0/23 3356 LEVEL3, US
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 22442 HOU-PHONOSCOPE, US
54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, 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
17033 UNALLOCATED 8.48.225.0/24 3356 LEVEL3, US
Complete listing at https://thyme.apnic.net/current/data-badAS
Prefixes from the Special Purpose Address Registry (Global)
-----------------------------------------------------------
Prefix Origin AS Description
192.88.99.0/24 6939 HURRICANE, US
Complete listing at https://thyme.apnic.net/current/data-spar
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
23.252.160.0/24 Origin: 398968 GROUP-IID-01, US
23.252.160.0/24 Transit: 174 COGENT-174, US
23.252.161.0/24 Origin: 398968 GROUP-IID-01, US
23.252.161.0/24 Transit: 174 COGENT-174, US
23.252.163.0/24 Origin: 398968 GROUP-IID-01, US
23.252.163.0/24 Transit: 174 COGENT-174, US
23.252.164.0/24 Origin: 398968 GROUP-IID-01, US
23.252.164.0/24 Transit: 174 COGENT-174, US
Complete listing at https://thyme.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 /10:40 /11:102 /12:305
/13:591 /14:1206 /15:2033 /16:13582 /17:8351 /18:13887
/19:25149 /20:43356 /21:52014 /22:108148 /23:95427 /24:522707
/25:791 /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
9121 5863 6692 TTNET, TR
12479 5767 6809 UNI2-AS, ES
8151 4344 10617 Uninet S.A. de C.V., MX
8551 3469 4004 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
11492 3414 4464 CABLEONE, US
6327 3177 3366 SHAW, CA
7155 2993 3903 VIASAT-SP-BACKBONE, US
22773 2958 3968 ASN-CXA-ALL-CCI-22773-RDC, US
39891 2810 3274 ALJAWWALSTC-AS, SA
30036 2264 2608 MEDIACOM-ENTERPRISE-BUSINESS, US
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1918 2:1004 3:153 4:7 5:3739 6:103
7:5 8:1556 9:1 11:172 12:1709 13:415
14:2379 15:156 16:39 17:372 18:139 20:166
21:4 22:188 23:5454 24:2318 25:6 27:2592
29:19 31:2404 32:98 34:1 35:55 36:1733
37:3939 38:2511 39:675 40:149 41:3881 42:1057
43:2090 44:292 45:15990 46:3866 47:303 49:1634
50:1903 51:106 52:1353 53:1 54:293 55:747
56:8 57:55 58:1767 59:1151 60:958 61:2264
62:2435 63:1942 64:5484 65:2304 66:4894 67:2929
68:1177 69:4161 70:1345 71:672 72:3056 74:2627
75:1516 76:716 77:2125 78:3802 79:3096 80:1942
81:1662 82:1455 83:1198 84:1318 85:3615 86:711
87:1952 88:2611 89:3146 90:505 91:7534 92:1880
93:2596 94:3253 95:4485 96:1308 97:345 98:991
99:864 100:75 101:1049 102:1939 103:28154 104:4107
105:462 106:831 107:2461 108:769 109:4178 110:2070
111:3258 112:1967 113:1531 114:1536 115:1951 116:1907
117:2503 118:2330 119:1827 120:1668 121:1028 122:2542
123:2112 124:1609 125:2086 128:1350 129:1195 130:919
131:2094 132:757 133:367 134:1931 135:289 136:857
137:858 138:2466 139:1217 140:880 141:1340 142:1251
143:1434 144:1230 145:342 146:1753 147:1470 148:2218
149:1670 150:849 151:1077 152:1818 153:448 154:3642
155:1333 156:1867 157:1218 158:1010 159:2030 160:2396
161:1296 162:3425 163:1211 164:1670 165:1566 166:620
167:1688 168:3684 169:689 170:4317 171:824 172:3008
173:3050 174:1015 175:1126 176:3512 177:4572 178:3019
179:2010 180:2283 181:2900 182:3235 183:1919 184:2390
185:19263 186:4290 187:3609 188:3828 189:3188 190:8876
191:1322 192:11018 193:8532 194:6942 195:4972 196:2916
197:2367 198:5998 199:5996 200:7545 201:5701 202:10455
203:10010 204:4521 205:3386 206:3857 207:3378 208:3999
209:4616 210:4236 211:2454 212:3938 213:3373 214:1144
215:64 216:6361 217:2636 218:1238 219:602 220:1952
221:988 222:858 223:2173
End of report
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