[lacnog] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora en apnic.net
Vie Mar 27 15:03:33 -03 2026
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 en lists.apnic.net.
For historical data, please see https://thyme.apnic.net.
If you have any comments please contact Philip Smith <pfsinoz en gmail.com>.
IPv4 Routing Table Report 04:00 +10GMT Sat 28 Mar, 2026
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: 1042315
Prefixes after maximum aggregation (per Origin AS): 398790
Deaggregation factor: 2.61
Unique aggregates announced (without unneeded subnets): 511501
Number of IPv4 prefixes with a valid ROA: 624960
Number of IPv4 prefixes with an invalid ROA: 1477
Number of IPv4 prefixes with no ROA: 415878
Total ASes present in the Internet Routing Table: 78212
Prefixes per ASN: 13.33
Origin-only ASes present in the Internet Routing Table: 67192
Origin ASes announcing only one prefix: 27328
Transit ASes present in the Internet Routing Table: 11020
Transit-only ASes present in the Internet Routing Table: 563
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 69
Max AS path prepend of ASN (269326) 61
Prefixes from unregistered ASNs in the Routing Table: 1085
Number of instances of unregistered ASNs: 1127
Number of 32-bit ASNs allocated by the RIRs: 49156
Number of 32-bit ASNs visible in the Routing Table: 40225
Prefixes from 32-bit ASNs in the Routing Table: 226123
Number of bogon 32-bit ASNs visible in the Routing Table: 133
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 399
Number of addresses announced to Internet: 3107950208
Equivalent to 185 /8s, 63 /16s and 142 /24s
Percentage of available address space announced: 83.9
Percentage of allocated address space announced: 83.9
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: 339196
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 286367
Total APNIC prefixes after maximum aggregation: 82782
APNIC Deaggregation factor: 3.46
Prefixes being announced from the APNIC address blocks: 273345
Unique aggregates announced from the APNIC address blocks: 107030
APNIC Region origin ASes present in the Internet Routing Table: 15165
APNIC Prefixes per ASN: 18.02
APNIC Region origin ASes announcing only one prefix: 4658
APNIC Region transit ASes present in the Internet Routing Table: 2003
Average APNIC Region AS path length visible: 4.7
Max APNIC Region AS path length visible: 32
Number of APNIC region 32-bit ASNs visible in the Routing Table: 10704
Number of APNIC addresses announced to Internet: 753941120
Equivalent to 44 /8s, 240 /16s and 58 /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: 303748
Total ARIN prefixes after maximum aggregation: 135968
ARIN Deaggregation factor: 2.23
Prefixes being announced from the ARIN address blocks: 303078
Unique aggregates announced from the ARIN address blocks: 146564
ARIN Region origin ASes present in the Internet Routing Table: 19411
ARIN Prefixes per ASN: 15.61
ARIN Region origin ASes announcing only one prefix: 7090
ARIN Region transit ASes present in the Internet Routing Table: 1933
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 29
Number of ARIN region 32-bit ASNs visible in the Routing Table: 5531
Number of ARIN addresses announced to Internet: 1348055040
Equivalent to 80 /8s, 89 /16s and 176 /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, 393216-404380
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: 286804
Total RIPE prefixes after maximum aggregation: 141614
RIPE Deaggregation factor: 2.03
Prefixes being announced from the RIPE address blocks: 289106
Unique aggregates announced from the RIPE address blocks: 187839
RIPE Region origin ASes present in the Internet Routing Table: 29347
RIPE Prefixes per ASN: 9.85
RIPE Region origin ASes announcing only one prefix: 12158
RIPE Region transit ASes present in the Internet Routing Table: 3970
Average RIPE Region AS path length visible: 4.8
Max RIPE Region AS path length visible: 29
Number of RIPE region 32-bit ASNs visible in the Routing Table: 13208
Number of RIPE addresses announced to Internet: 732537472
Equivalent to 43 /8s, 169 /16s and 162 /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: 127368
Total LACNIC prefixes after maximum aggregation: 30744
LACNIC Deaggregation factor: 4.14
Prefixes being announced from the LACNIC address blocks: 123001
Unique aggregates announced from the LACNIC address blocks: 50226
LACNIC Region origin ASes present in the Internet Routing Table: 11378
LACNIC Prefixes per ASN: 10.81
LACNIC Region origin ASes announcing only one prefix: 2695
LACNIC Region transit ASes present in the Internet Routing Table: 2562
Average LACNIC Region AS path length visible: 5.4
Max LACNIC Region AS path length visible: 69
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9402
Number of LACNIC addresses announced to Internet: 169853312
Equivalent to 10 /8s, 31 /16s and 193 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-275868 + 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: 36943
Total AfriNIC prefixes after maximum aggregation: 6979
AfriNIC Deaggregation factor: 5.29
Prefixes being announced from the AfriNIC address blocks: 53386
Unique aggregates announced from the AfriNIC address blocks: 19493
AfriNIC Region origin ASes present in the Internet Routing Table: 2014
AfriNIC Prefixes per ASN: 26.51
AfriNIC Region origin ASes announcing only one prefix: 727
AfriNIC Region transit ASes present in the Internet Routing Table: 383
Average AfriNIC Region AS path length visible: 5.3
Max AfriNIC Region AS path length visible: 53
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1380
Number of AfriNIC addresses announced to Internet: 103305216
Equivalent to 6 /8s, 40 /16s and 80 /24s
AfriNIC AS Blocks 36864-37887, 327680-330751 & 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 13865 8945 105 CHINAMOBILE-CN China Mobile Communication
7545 5938 829 508 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 5032 4193 77 ERX-CERNET-BKB China Education and Resear
9498 4878 548 318 BBIL-AP BHARTI Airtel Ltd., IN
18403 4539 347 25 FPT-AS-AP FPT Telecom Company, VN
7552 4053 1332 29 VIETEL-AS-AP Viettel Group, VN
7713 3678 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones
56046 3477 887 178 CMNET-JIANGSU-AP China Mobile communicati
45899 3355 1868 99 VNPT-AS-VN VNPT Corp, VN
24560 3011 862 516 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd.,
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 14572 41225 5605 AMAZON-02 - Amazon.com, Inc., US
22773 4782 3117 368 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica
11492 4647 308 1023 CABLEONE - CABLE ONE, INC., US
7155 3861 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US
6327 3721 1321 75 SHAW - Shaw Communications, CA
396982 3294 4856 487 GOOGLE-CLOUD-PLATFORM - Google LLC, US
174 3244 8763 826 COGENT-174 - Cogent Communications, LLC,
749 3141 54728 2392 DNIC-AS-00749 - United States Department
36352 2704 222 890 AS-COLOCROSSING - HostPapa, US
16625 2669 1167 2082 AKAMAI-AS - Akamai Technologies, Inc., 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 7187 1711 149 UNI2-AS, ES
39891 4972 306 72 ALJAWWALSTC-AS, SA
9009 3845 356 2249 M247, RO
20940 3824 3389 110 AKAMAI-ASN1, NL
12389 3198 2321 869 ROSTELECOM-AS PJSC Rostelecom. Technical
212238 2696 195 1979 CDNEXT, GB
34984 2455 365 570 TELLCOM-AS, TR
8452 1717 1852 17 TE-AS TE-AS, EG
203020 1637 248 807 HOSTROYALE, IN
13188 1607 100 27 TRIOLAN, UA
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 12825 3294 606 UNINET, MX
10620 3453 458 1104 Telmex Colombia S.A., CO
13999 2460 506 344 Mega Cable, S.A. de C.V., MX
11830 1958 369 65 Instituto Costarricense de Electricidad y
11664 1452 278 33 Techtel LMDS Comunicaciones Interactivas
28573 1372 2430 272 Claro NXT Telecomunicacoes Ltda, BR
3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1244 371 22 INTEGRATEL PERU S.A.A., PE
26615 1059 2393 96 TIM SA, BR
22884 1056 67 356 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M
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 2045 648 34 RAYA-AS, EG
36992 1854 1531 336 ETISALAT-MISR, EG
24863 1288 389 16 LINKdotNET-AS, EG
36935 1247 524 47 Vodafone-, EG
36903 1232 555 98 MT-MPLS, MA
37069 1117 1100 11 MOBINIL, EG
29571 1072 78 20 ORANGE-COTE-IVOIRE, CI
20011 589 155 220 NTT-DATA-Inc, ZA
15399 557 58 61 WANANCHI-, KE
36914 556 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 14572 41225 5605 AMAZON-02 - Amazon.com, Inc., US
9808 13865 8945 105 CHINAMOBILE-CN China Mobile Communication
8151 12825 3294 606 UNINET, MX
12479 7187 1711 149 UNI2-AS, ES
7545 5938 829 508 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 5032 4193 77 ERX-CERNET-BKB China Education and Resear
39891 4972 306 72 ALJAWWALSTC-AS, SA
9498 4878 548 318 BBIL-AP BHARTI Airtel Ltd., IN
22773 4782 3117 368 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica
11492 4647 308 1023 CABLEONE - CABLE ONE, INC., 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 13865 13760 CHINAMOBILE-CN China Mobile Communications Grou
8151 12825 12219 UNINET, MX
12479 7187 7038 UNI2-AS, ES
7545 5938 5430 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 5032 4955 ERX-CERNET-BKB China Education and Research Net
39891 4972 4900 ALJAWWALSTC-AS, SA
9498 4878 4560 BBIL-AP BHARTI Airtel Ltd., IN
18403 4539 4514 FPT-AS-AP FPT Telecom Company, VN
22773 4782 4414 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications
7552 4053 4024 VIETEL-AS-AP Viettel Group, VN
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
393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887 - C
396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3 - Level 3 Parent
394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE - Phonos
395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3 - Level 3 Parent
1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3 - Level 3 Parent
13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174 - Cogent Com
26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI
396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4 - AT&T En
395476 UNALLOCATED 12.36.194.0/24 7018 ATT-INTERNET4 - AT&T En
395476 UNALLOCATED 12.36.195.0/24 3356 LEVEL3 - Level 3 Parent
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 - Hurricane Electric LLC, US
Complete listing at https://thyme.apnic.net/current/data-spar
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
23.137.48.0/24 Origin: 16904 ARVIG-16904 - Arvig Enterprises Inc., US
23.137.48.0/24 Transit: 3257 GTT-BACKBONE GTT, US
23.137.200.0/24 Origin: 16276 OVH, FR
23.137.200.0/24 Transit: 2516 KDDI KDDI CORPORATION, JP
23.140.216.0/24 Origin: 27176 DATAWAGON - DataWagon LLC, US
23.140.216.0/24 Transit: 20278 NEXEON - Nexeon Technologies, Inc., US
23.141.0.0/24 Origin: 395350 RESERVED, ZZ
23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS - Charter Communicat
23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA
23.142.24.0/24 Transit: 64236 UNREAL-SERVERS - UnReal Servers, LLC, 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 /9:14 /10:40 /11:95 /12:297
/13:583 /14:1191 /15:2095 /16:13629 /17:8376 /18:13382
/19:25674 /20:46928 /21:52858 /22:114232 /23:107839 /24:654376
/25:690 /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
8151 7000 12825 UNINET, MX
12479 6129 7187 UNI2-AS, ES
39891 3656 4972 ALJAWWALSTC-AS, SA
11492 3507 4647 CABLEONE - CABLE ONE, INC., US
6327 3501 3721 SHAW - Shaw Communications, CA
22773 3051 4782 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US
7155 2820 3861 VIASAT-SP-BACKBONE - ViaSat,Inc., US
16509 2614 14572 AMAZON-02 - Amazon.com, Inc., US
30036 2317 2666 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US
10620 2233 3453 Telmex Colombia S.A., CO
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:2519 2:1691 3:1004 4:5 5:5120 6:196
7:6 8:1521 9:38 11:172 12:1189 13:680
14:2706 15:459 16:169 17:421 18:918 20:583
21:4 22:188 23:8214 24:2856 25:2 27:2738
28:2 29:19 31:3413 32:37 34:87 35:294
36:4646 37:4454 38:9989 39:1277 40:411 41:4550
42:2206 43:2986 44:447 45:19869 46:4893 47:411
48:100 49:2212 50:2035 51:618 52:1307 54:276
55:1114 56:11 57:321 58:2407 59:1440 60:1174
61:3133 62:3125 63:1754 64:6267 65:2132 66:6035
67:3252 68:1502 69:4219 70:1054 71:610 72:3155
74:3005 75:1489 76:591 77:2920 78:1939 79:1795
80:2352 81:2209 82:4025 83:1442 84:2098 85:3816
86:1095 87:2448 88:1354 89:4700 90:786 91:8421
92:2853 93:3018 94:4348 95:4661 96:1451 97:316
98:944 99:805 100:68 101:1364 102:4472 103:32393
104:5339 105:819 106:925 107:2848 108:1243 109:4220
110:2298 111:4174 112:3148 113:1981 114:2270 115:2236
116:2182 117:3480 118:2943 119:2119 120:2718 121:1593
122:2995 123:2257 124:1732 125:3018 126:125 128:1680
129:973 130:1609 131:2465 132:812 133:475 134:1661
135:606 136:1587 137:1413 138:3182 139:1626 140:1824
141:1699 142:2523 143:2106 144:1704 145:638 146:2204
147:2173 148:2716 149:3076 150:1349 151:2727 152:2315
153:988 154:9489 155:2315 156:4473 157:2275 158:1512
159:2816 160:3820 161:1950 162:4033 163:2449 164:2039
165:2631 166:1293 167:2258 168:4013 169:884 170:5560
171:1116 172:4540 173:3477 174:887 175:1359 176:3825
177:4839 178:4369 179:2299 180:3049 181:4473 182:3999
183:2826 184:2012 185:21806 186:5772 187:4971 188:4612
189:4562 190:9794 191:1576 192:11483 193:9596 194:7857
195:5814 196:3334 197:3255 198:6282 199:6096 200:8243
201:6413 202:10831 203:10513 204:4778 205:3767 206:4535
207:4023 208:4384 209:5495 210:4907 211:2780 212:5013
213:4118 214:1041 215:47 216:7285 217:3556 218:1753
219:590 220:2202 221:1308 222:1071 223:3418
End of report
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