[afnog] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Apr 4 18:02:21 UTC 2025
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
UKNOF, 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 Apr, 2025
IPv4 BGP Table (Global) as seen at Japan.
Report Website: https://thyme.apnic.net
Detailed Analysis: https://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 979261
Prefixes after maximum aggregation (per Origin AS): 375908
Deaggregation factor: 2.61
Unique aggregates announced (without unneeded subnets): 476503
Number of IPv4 prefixes with a valid ROA: 533908
Number of IPv4 prefixes with an invalid ROA: 1292
Number of IPv4 prefixes with no ROA: 444061
Total ASes present in the Internet Routing Table: 76787
Prefixes per ASN: 12.75
Origin-only ASes present in the Internet Routing Table: 65750
Origin ASes announcing only one prefix: 26889
Transit ASes present in the Internet Routing Table: 11037
Transit-only ASes present in the Internet Routing Table: 555
Average AS path length visible in the Internet Routing Table: 5.2
Max AS path length visible: 65
Max AS path prepend of ASN ( 37447) 57
Prefixes from unregistered ASNs in the Routing Table: 1021
Number of instances of unregistered ASNs: 1025
Number of 32-bit ASNs allocated by the RIRs: 46158
Number of 32-bit ASNs visible in the Routing Table: 38073
Prefixes from 32-bit ASNs in the Routing Table: 200642
Number of bogon 32-bit ASNs visible in the Routing Table: 30
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 466
Number of addresses announced to Internet: 3108199552
Equivalent to 185 /8s, 67 /16s and 92 /24s
Percentage of available address space announced: 84.0
Percentage of allocated address space announced: 84.0
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 99.6
Total number of prefixes smaller than registry allocations: 321721
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 256999
Total APNIC prefixes after maximum aggregation: 77112
APNIC Deaggregation factor: 3.33
Prefixes being announced from the APNIC address blocks: 248712
Unique aggregates announced from the APNIC address blocks: 102737
APNIC Region origin ASes present in the Internet Routing Table: 14597
APNIC Prefixes per ASN: 17.04
APNIC Region origin ASes announcing only one prefix: 4450
APNIC Region transit ASes present in the Internet Routing Table: 1962
Average APNIC Region AS path length visible: 5.4
Max APNIC Region AS path length visible: 56
Number of APNIC region 32-bit ASNs visible in the Routing Table: 10077
Number of APNIC addresses announced to Internet: 749449984
Equivalent to 44 /8s, 171 /16s and 179 /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, 131072-155961
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: 289070
Total ARIN prefixes after maximum aggregation: 128961
ARIN Deaggregation factor: 2.24
Prefixes being announced from the ARIN address blocks: 290134
Unique aggregates announced from the ARIN address blocks: 137245
ARIN Region origin ASes present in the Internet Routing Table: 19242
ARIN Prefixes per ASN: 15.08
ARIN Region origin ASes announcing only one prefix: 7029
ARIN Region transit ASes present in the Internet Routing Table: 1987
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 34
Number of ARIN region 32-bit ASNs visible in the Routing Table: 5179
Number of ARIN addresses announced to Internet: 1349946624
Equivalent to 80 /8s, 118 /16s and 141 /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, 393216-402332
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,
54/8, 55/8, 56/8, 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: 273284
Total RIPE prefixes after maximum aggregation: 133176
RIPE Deaggregation factor: 2.05
Prefixes being announced from the RIPE address blocks: 271121
Unique aggregates announced from the RIPE address blocks: 173673
RIPE Region origin ASes present in the Internet Routing Table: 28885
RIPE Prefixes per ASN: 9.39
RIPE Region origin ASes announcing only one prefix: 12058
RIPE Region transit ASes present in the Internet Routing Table: 4000
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 45
Number of RIPE region 32-bit ASNs visible in the Routing Table: 12363
Number of RIPE addresses announced to Internet: 731872896
Equivalent to 43 /8s, 159 /16s and 126 /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
196608-216475
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
53/8, 57/8, 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: 123782
Total LACNIC prefixes after maximum aggregation: 29271
LACNIC Deaggregation factor: 4.23
Prefixes being announced from the LACNIC address blocks: 120435
Unique aggregates announced from the LACNIC address blocks: 48802
LACNIC Region origin ASes present in the Internet Routing Table: 11227
LACNIC Prefixes per ASN: 10.73
LACNIC Region origin ASes announcing only one prefix: 2659
LACNIC Region transit ASes present in the Internet Routing Table: 2502
Average LACNIC Region AS path length visible: 5.9
Max LACNIC Region AS path length visible: 56
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9181
Number of LACNIC addresses announced to Internet: 171747584
Equivalent to 10 /8s, 60 /16s and 169 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-274844 + 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: 35105
Total AfriNIC prefixes after maximum aggregation: 6755
AfriNIC Deaggregation factor: 5.20
Prefixes being announced from the AfriNIC address blocks: 48393
Unique aggregates announced from the AfriNIC address blocks: 13648
AfriNIC Region origin ASes present in the Internet Routing Table: 1908
AfriNIC Prefixes per ASN: 25.36
AfriNIC Region origin ASes announcing only one prefix: 693
AfriNIC Region transit ASes present in the Internet Routing Table: 380
Average AfriNIC Region AS path length visible: 6.0
Max AfriNIC Region AS path length visible: 65
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1273
Number of AfriNIC addresses announced to Internet: 104943872
Equivalent to 6 /8s, 65 /16s and 81 /24s
AfriNIC AS Blocks 36864-37887, 327680-329727 & 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
9808 10316 8754 94 CHINAMOBILE-CN China Mobile Communication
7545 6215 843 657 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4780 4192 76 ERX-CERNET-BKB China Education and Resear
9498 4298 530 278 BBIL-AP BHARTI Airtel Ltd., IN
7552 3915 1332 26 VIETEL-AS-AP Viettel Group, VN
7713 3676 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones
45899 3276 1869 102 VNPT-AS-VN VNPT Corp, VN
24560 2851 849 538 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd.,
4766 2375 11522 618 KIXS-AS-KR Korea Telecom, KR
45090 2205 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer
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 12997 39643 3951 AMAZON-02, US
11492 4686 311 585 CABLEONE, US
7155 3828 286 85 VIASAT-SP-BACKBONE, US
6327 3622 1320 81 SHAW, CA
174 3543 8765 949 COGENT-174, US
22773 3398 3033 182 ASN-CXA-ALL-CCI-22773-RDC, US
749 3255 54879 2506 DNIC-AS-00749, US
16625 3030 1270 2223 AKAMAI-AS, US
396982 2950 3649 467 GOOGLE-CLOUD-PLATFORM, US
36352 2619 216 797 AS-COLOCROSSING, 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 7712 1714 145 UNI2-AS, ES
39891 4797 293 62 ALJAWWALSTC-AS, SA
20940 3938 3395 130 AKAMAI-ASN1, NL
9009 3768 326 1960 M247, RO
12389 3082 2303 896 ROSTELECOM-AS, RU
34984 2365 360 583 TELLCOM-AS, TR
212238 2084 148 1535 CDNEXT, GB
8452 1615 1852 14 TE-AS TE-AS, EG
13188 1606 100 34 TRIOLAN, UA
62240 1492 98 750 CLOUVIDER Clouvider - Global ASN, GB
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 11911 3244 585 UNINET, MX
10620 3526 487 971 Telmex Colombia S.A., CO
13999 2511 539 364 Mega Cable, S.A. de C.V., MX
11830 1992 369 64 Instituto Costarricense de Electricidad y
28573 1357 2438 262 Claro NXT Telecomunicacoes Ltda, BR
3816 1333 784 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1194 371 22 Telefonica del Peru S.A.A., PE
11664 1174 278 33 Techtel LMDS Comunicaciones Interactivas
22884 1050 67 378 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M
6503 1043 374 163 Axtel, S.A.B. de C.V., MX
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
24835 1703 599 30 RAYA-AS, EG
24863 1631 389 16 LINKdotNET-AS, EG
29571 1571 102 22 ORANGE-COTE-IVOIRE, CI
36992 1428 1518 287 ETISALAT-MISR, EG
36903 1249 554 96 MT-MPLS, MA
36935 1006 521 42 Vodafone-, EG
20011 981 185 285 INTERNET-SOLUTIONS, ZA
37069 915 1083 15 MOBINIL, EG
6713 562 1861 35 IAM-AS, MA
36914 545 82 3 KENET-AS, KE
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
16509 12997 39643 3951 AMAZON-02, US
8151 11911 3244 585 UNINET, MX
9808 10316 8754 94 CHINAMOBILE-CN China Mobile Communication
12479 7712 1714 145 UNI2-AS, ES
7545 6215 843 657 TPG-INTERNET-AP TPG Telecom Limited, AU
39891 4797 293 62 ALJAWWALSTC-AS, SA
4538 4780 4192 76 ERX-CERNET-BKB China Education and Resear
11492 4686 311 585 CABLEONE, US
9498 4298 530 278 BBIL-AP BHARTI Airtel Ltd., IN
20940 3938 3395 130 AKAMAI-ASN1, NL
Complete listing at https://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
8151 11911 11326 UNINET, MX
9808 10316 10222 CHINAMOBILE-CN China Mobile Communications Grou
12479 7712 7567 UNI2-AS, ES
7545 6215 5558 TPG-INTERNET-AP TPG Telecom Limited, AU
39891 4797 4735 ALJAWWALSTC-AS, SA
4538 4780 4704 ERX-CERNET-BKB China Education and Research Net
11492 4686 4101 CABLEONE, US
9498 4298 4020 BBIL-AP BHARTI Airtel Ltd., IN
7552 3915 3889 VIETEL-AS-AP Viettel Group, VN
20940 3938 3808 AKAMAI-ASN1, NL
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
212032 UNALLOCATED 5.59.105.0/24 35168 TNS-PLUS-CORE, KZ
22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US
33123 UNALLOCATED 8.10.69.0/24 174 COGENT-174, US
12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-D
46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US
53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US
393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887, US
396894 UNALLOCATED 8.28.201.0/24 46887 CROWNCASTLE-AS46887, US
394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US
54338 UNALLOCATED 8.33.241.0/24 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
14.192.20.0/22 Origin: 26658 HENGTONG-IDC-LLC, US
14.192.20.0/22 Transit: 6939 HURRICANE, US
23.140.216.0/24 Origin: 27176 DATAWAGON, US
23.140.216.0/24 Transit: 20278 NEXEON, US
23.141.0.0/24 Origin: 395350 RESERVED, ZZ
23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US
23.152.48.0/24 Origin: 46167 RESERVED, ZZ
23.152.48.0/24 Transit: 7018 ATT-INTERNET4, US
23.155.208.0/24 Origin: 396169 AS-GHCIL-01, US
23.155.208.0/24 Transit: 35985 ONERINGNET-ATL-1, 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 /9:16 /10:41 /11:93 /12:302
/13:580 /14:1218 /15:2143 /16:13940 /17:8347 /18:13822
/19:24853 /20:44569 /21:52245 /22:112476 /23:101654 /24:602147
/25:799 /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 6637 7712 UNI2-AS, ES
8151 6114 11911 UNINET, MX
11492 3531 4686 CABLEONE, US
39891 3489 4797 ALJAWWALSTC-AS, SA
6327 3417 3622 SHAW, CA
7155 2787 3828 VIASAT-SP-BACKBONE, US
22773 2535 3398 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2337 12997 AMAZON-02, US
30036 2205 2545 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2188 3526 Telmex Colombia S.A., CO
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1697 2:1527 3:613 4:10 5:4567 6:163
7:6 8:1552 9:1 11:172 12:1372 13:351
14:2550 15:351 16:279 17:363 18:918 20:470
21:4 22:188 23:7344 24:2834 25:2 27:2668
29:19 31:3223 32:40 34:80 35:205 36:2412
37:4681 38:8932 39:899 40:154 41:4207 42:949
43:2543 44:364 45:18480 46:4935 47:291 49:1969
50:1903 51:591 52:1551 54:300 55:877 56:11
57:250 58:2133 59:1340 60:1171 61:2793 62:2909
63:1839 64:5492 65:2175 66:4648 67:3056 68:1107
69:3983 70:1071 71:612 72:2841 74:2808 75:1608
76:616 77:2707 78:1876 79:1729 80:2211 81:2017
82:3116 83:1421 84:1840 85:3401 86:1043 87:2403
88:1282 89:4319 90:775 91:8317 92:2800 93:2877
94:4061 95:4289 96:1434 97:312 98:993 99:641
100:71 101:1169 102:3718 103:32200 104:4796 105:750
106:995 107:2611 108:1210 109:4103 110:2233 111:3331
112:2043 113:1535 114:1970 115:2102 116:2041 117:2737
118:2451 119:1927 120:1890 121:1416 122:2761 123:2171
124:1616 125:2886 126:91 128:1569 129:965 130:1276
131:1896 132:783 133:451 134:1529 135:330 136:1302
137:1159 138:2898 139:1607 140:1580 141:1490 142:1837
143:1647 144:1069 145:514 146:2162 147:2101 148:2649
149:2902 150:1246 151:1743 152:2104 153:503 154:7918
155:1630 156:3197 157:1889 158:1272 159:2433 160:3544
161:1890 162:3704 163:1976 164:1701 165:2207 166:1438
167:1875 168:4028 169:792 170:5087 171:1002 172:4474
173:3218 174:911 175:1287 176:3687 177:4729 178:3788
179:2294 180:2578 181:4053 182:3372 183:1809 184:2141
185:21492 186:5091 187:4429 188:4200 189:4162 190:9638
191:1477 192:11192 193:9426 194:7787 195:5518 196:3290
197:3684 198:6186 199:8425 200:8197 201:6296 202:10548
203:10541 204:4548 205:3679 206:4625 207:3559 208:4203
209:5195 210:4807 211:2637 212:4513 213:3768 214:1050
215:48 216:6593 217:3085 218:1383 219:538 220:2088
221:1071 222:844 223:2340
End of report
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