IPv4 R&E Routing Table Report 23:00 GMT Sun 12 Apr, 2026 IPv4 BGP Table (Global) as seen at Singapore. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Singapore/ Analysis Summary ---------------- BGP routing table entries examined: 1038418 Prefixes after maximum aggregation (per Origin AS): 398840 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 513499 Number of IPv4 prefixes with a valid ROA: 630554 Number of IPv4 prefixes with an invalid ROA: 433 Number of IPv4 prefixes with no ROA: 407431 Total ASes present in the Internet Routing Table: 78225 Prefixes per ASN: 13.27 Origin-only ASes present in the Internet Routing Table: 67039 Origin ASes announcing only one prefix: 27349 Transit ASes present in the Internet Routing Table: 11186 Transit-only ASes present in the Internet Routing Table: 582 Paths with bogon ASNs present in the IPv4 Routing Table: 40 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 70 Max AS path prepend of ASN ( 37447) 66 Prefixes from unregistered ASNs in the Routing Table: 992 Number of instances of unregistered ASNs: 1024 Number of 32-bit ASNs allocated by the RIRs: 49317 Number of 32-bit ASNs visible in the Routing Table: 40315 Prefixes from 32-bit ASNs in the Routing Table: 227822 Number of bogon 32-bit ASNs visible in the Routing Table: 82 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 412 Number of addresses announced to Internet: 3103304192 Equivalent to 184 /8s, 248 /16s and 170 /24s Percentage of available address space announced: 83.8 Percentage of allocated address space announced: 83.8 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: 338353 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 283403 Total APNIC prefixes after maximum aggregation: 82420 APNIC Deaggregation factor: 3.44 Prefixes being announced from the APNIC address blocks: 269725 Unique aggregates announced from the APNIC address blocks: 107697 APNIC Region origin ASes present in the Internet Routing Table: 15130 APNIC Prefixes per ASN: 17.83 APNIC Region origin ASes announcing only one prefix: 4615 APNIC Region transit ASes present in the Internet Routing Table: 2051 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 52 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10719 Number of APNIC addresses announced to Internet: 748758528 Equivalent to 44 /8s, 161 /16s and 38 /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: 302176 Total ARIN prefixes after maximum aggregation: 135654 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 301716 Unique aggregates announced from the ARIN address blocks: 146827 ARIN Region origin ASes present in the Internet Routing Table: 19396 ARIN Prefixes per ASN: 15.56 ARIN Region origin ASes announcing only one prefix: 7118 ARIN Region transit ASes present in the Internet Routing Table: 1919 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: 5543 Number of ARIN addresses announced to Internet: 1348122368 Equivalent to 80 /8s, 90 /16s and 183 /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: 287318 Total RIPE prefixes after maximum aggregation: 142286 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 289870 Unique aggregates announced from the RIPE address blocks: 188963 RIPE Region origin ASes present in the Internet Routing Table: 29380 RIPE Prefixes per ASN: 9.87 RIPE Region origin ASes announcing only one prefix: 12178 RIPE Region transit ASes present in the Internet Routing Table: 4061 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 30 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13253 Number of RIPE addresses announced to Internet: 733078016 Equivalent to 43 /8s, 177 /16s and 226 /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: 127706 Total LACNIC prefixes after maximum aggregation: 30864 LACNIC Deaggregation factor: 4.14 Prefixes being announced from the LACNIC address blocks: 122642 Unique aggregates announced from the LACNIC address blocks: 50261 LACNIC Region origin ASes present in the Internet Routing Table: 11386 LACNIC Prefixes per ASN: 10.77 LACNIC Region origin ASes announcing only one prefix: 2705 LACNIC Region transit ASes present in the Internet Routing Table: 2580 Average LACNIC Region AS path length visible: 5.4 Max LACNIC Region AS path length visible: 68 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9419 Number of LACNIC addresses announced to Internet: 169856256 Equivalent to 10 /8s, 31 /16s and 205 /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: 36823 Total AfriNIC prefixes after maximum aggregation: 6989 AfriNIC Deaggregation factor: 5.27 Prefixes being announced from the AfriNIC address blocks: 54053 Unique aggregates announced from the AfriNIC address blocks: 19392 AfriNIC Region origin ASes present in the Internet Routing Table: 2015 AfriNIC Prefixes per ASN: 26.83 AfriNIC Region origin ASes announcing only one prefix: 733 AfriNIC Region transit ASes present in the Internet Routing Table: 377 Average AfriNIC Region AS path length visible: 5.3 Max AfriNIC Region AS path length visible: 70 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1381 Number of AfriNIC addresses announced to Internet: 103296256 Equivalent to 6 /8s, 40 /16s and 45 /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 13821 8729 119 CHINAMOBILE-CN China Mobile Communication 7545 5916 828 499 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4906 550 329 BBIL-AP BHARTI Airtel Ltd., IN 18403 4573 347 26 FPT-AS-AP FPT Telecom Company, VN 7552 4060 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3667 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3487 887 177 CMNET-JIANGSU-AP China Mobile communicati 17561 3465 218 567 LCS-AS-AP LARUS Limited, HK 45899 3353 1868 100 VNPT-AS-VN VNPT Corp, VN 24560 3012 859 517 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14633 41275 5670 AMAZON-02 - Amazon.com, Inc., US 22773 4781 3100 365 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4670 310 1034 CABLEONE - CABLE ONE, INC., US 7155 3870 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3723 1305 76 SHAW - Shaw Communications, CA 396982 3322 4859 495 GOOGLE-CLOUD-PLATFORM - Google LLC, US 174 3232 8766 829 COGENT-174 - Cogent Communications, LLC, 749 3140 54728 2391 DNIC-AS-00749 - United States Department 36352 2721 222 906 AS-COLOCROSSING - HostPapa, US 30036 2674 365 300 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom C Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7161 1711 149 UNI2-AS, ES 39891 4972 306 72 ALJAWWALSTC-AS, SA 9009 3830 354 2246 M247, RO 20940 3818 3389 110 AKAMAI-ASN1, NL 12389 3142 2318 869 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2720 197 2002 CDNEXT, GB 34984 2449 365 571 TELLCOM-AS, TR 8452 1725 1852 14 TE-AS TE-AS, EG 203020 1637 249 809 HOSTROYALE, IN 13188 1607 100 27 TRIOLAN, UA Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 12754 3300 620 UNINET, MX 10620 3430 450 1106 Telmex Colombia S.A., CO 13999 2447 506 345 Mega Cable, S.A. de C.V., MX 11830 1938 369 65 Instituto Costarricense de Electricidad y 11664 1436 277 34 Techtel LMDS Comunicaciones Interactivas 28573 1373 2431 268 Claro NXT Telecomunicacoes Ltda, BR 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1246 371 22 INTEGRATEL PERU S.A.A., PE 26615 1066 2392 101 TIM SA, BR 22884 1055 71 361 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 2025 648 34 RAYA-AS, EG 36992 1859 1532 341 ETISALAT-MISR, EG 24863 1295 389 16 LINKdotNET-AS, EG 36935 1242 523 45 Vodafone-, EG 36903 1232 555 98 MT-MPLS, MA 37069 1117 1100 11 MOBINIL, EG 29571 1071 78 19 ORANGE-COTE-IVOIRE, CI 20011 589 155 220 NTT-DATA-Inc, ZA 15399 554 57 59 WANANCHI-, KE 36914 541 82 3 KENET-AS, KE Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14633 41275 5670 AMAZON-02 - Amazon.com, Inc., US 9808 13821 8729 119 CHINAMOBILE-CN China Mobile Communication 8151 12754 3300 620 UNINET, MX 12479 7161 1711 149 UNI2-AS, ES 7545 5916 828 499 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4972 306 72 ALJAWWALSTC-AS, SA 9498 4906 550 329 BBIL-AP BHARTI Airtel Ltd., IN 22773 4781 3100 365 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4670 310 1034 CABLEONE - CABLE ONE, INC., US 18403 4573 347 26 FPT-AS-AP FPT Telecom Company, VN Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 13821 13702 CHINAMOBILE-CN China Mobile Communications Grou 8151 12754 12134 UNINET, MX 12479 7161 7012 UNI2-AS, ES 7545 5916 5417 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4972 4900 ALJAWWALSTC-AS, SA 9498 4906 4577 BBIL-AP BHARTI Airtel Ltd., IN 18403 4573 4547 FPT-AS-AP FPT Telecom Company, VN 22773 4781 4416 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4060 4031 VIETEL-AS-AP Viettel Group, VN 7155 3870 3785 VIASAT-SP-BACKBONE - ViaSat,Inc., US Complete listing at https://bgp.nsrc.org/REN/Singapore/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 395729 UNALLOCATED 8.28.58.0/24 32787 PROLEXIC-TECHNOLOGIES-D 395729 UNALLOCATED 8.28.60.0/24 32787 PROLEXIC-TECHNOLOGIES-D 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 Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS 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: 174 COGENT-174 - Cogent Communications, LLC, 23.137.200.0/24 Origin: 16276 OVH, FR 23.137.200.0/24 Transit: 174 COGENT-174 - Cogent Communications, LLC, 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://bgp.nsrc.org/REN/Singapore/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 /10:39 /11:95 /12:297 /13:582 /14:1186 /15:2094 /16:13581 /17:8243 /18:13245 /19:25360 /20:45626 /21:52186 /22:113384 /23:106882 /24:655588 /25:0 /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 6944 12754 UNINET, MX 12479 6104 7161 UNI2-AS, ES 39891 3656 4972 ALJAWWALSTC-AS, SA 11492 3530 4670 CABLEONE - CABLE ONE, INC., US 6327 3504 3723 SHAW - Shaw Communications, CA 22773 3053 4781 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2824 3870 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2627 14633 AMAZON-02 - Amazon.com, Inc., US 30036 2326 2674 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2234 3430 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2502 2:1824 3:1001 4:5 5:5177 6:197 7:6 8:1490 9:39 11:172 12:1186 13:687 14:2686 15:458 16:176 17:422 18:915 20:585 21:4 22:188 23:8142 24:2775 25:2 27:2812 28:1 29:19 31:3478 32:36 34:90 35:283 36:4674 37:4448 38:10120 39:1281 40:421 41:4543 42:2173 43:3092 44:446 45:19806 46:4850 47:408 48:125 49:2232 50:2021 51:627 52:1307 54:278 55:1121 56:11 57:322 58:2366 59:1386 60:1174 61:3155 62:3115 63:1719 64:6316 65:2135 66:6070 67:3262 68:1496 69:4212 70:1062 71:612 72:3188 74:3020 75:1491 76:587 77:2932 78:1970 79:1795 80:2348 81:2216 82:4034 83:1446 84:2135 85:3793 86:1091 87:2339 88:1346 89:4712 90:782 91:8426 92:2818 93:3009 94:4359 95:4648 96:1454 97:314 98:943 99:810 100:68 101:1626 102:4480 103:32959 104:5359 105:818 106:912 107:2878 108:1228 109:4206 110:2289 111:4109 112:3158 113:1960 114:2265 115:2290 116:2175 117:3503 118:3001 119:2107 120:2695 121:1544 122:2989 123:2265 124:1706 125:3006 126:125 128:1582 129:949 130:1629 131:2464 132:825 133:475 134:1664 135:610 136:1611 137:1346 138:3297 139:1635 140:1761 141:1727 142:2526 143:2122 144:1735 145:645 146:2202 147:2196 148:2766 149:3102 150:1371 151:2810 152:2307 153:1317 154:10120 155:2287 156:4696 157:2291 158:1533 159:2859 160:3825 161:1958 162:4035 163:2497 164:2043 165:2639 166:1261 167:2293 168:4017 169:853 170:5565 171:1127 172:4549 173:3481 174:879 175:1374 176:3872 177:4893 178:4350 179:2309 180:3164 181:4523 182:4009 183:2832 184:2024 185:21786 186:5778 187:4940 188:4609 189:4502 190:9848 191:1571 192:11453 193:9608 194:7866 195:5816 196:3352 197:3233 198:6118 199:6070 200:8060 201:6381 202:10657 203:10639 204:4769 205:3700 206:4498 207:3826 208:4374 209:5383 210:4709 211:2684 212:5021 213:4120 214:1044 215:47 216:7285 217:3561 218:1700 219:416 220:2198 221:1307 222:937 223:3419 End of report