IPv4 R&E Routing Table Report 23:00 GMT Mon 13 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: 1039014 Prefixes after maximum aggregation (per Origin AS): 398899 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 513806 Number of IPv4 prefixes with a valid ROA: 631556 Number of IPv4 prefixes with an invalid ROA: 447 Number of IPv4 prefixes with no ROA: 407011 Total ASes present in the Internet Routing Table: 78225 Prefixes per ASN: 13.28 Origin-only ASes present in the Internet Routing Table: 67046 Origin ASes announcing only one prefix: 27349 Transit ASes present in the Internet Routing Table: 11179 Transit-only ASes present in the Internet Routing Table: 582 Paths with bogon ASNs present in the IPv4 Routing Table: 39 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: 993 Number of instances of unregistered ASNs: 1025 Number of 32-bit ASNs allocated by the RIRs: 49318 Number of 32-bit ASNs visible in the Routing Table: 40315 Prefixes from 32-bit ASNs in the Routing Table: 228178 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: 416 Number of addresses announced to Internet: 3103628288 Equivalent to 184 /8s, 253 /16s and 156 /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: 338653 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 283473 Total APNIC prefixes after maximum aggregation: 82399 APNIC Deaggregation factor: 3.44 Prefixes being announced from the APNIC address blocks: 269860 Unique aggregates announced from the APNIC address blocks: 107749 APNIC Region origin ASes present in the Internet Routing Table: 15126 APNIC Prefixes per ASN: 17.84 APNIC Region origin ASes announcing only one prefix: 4608 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: 10714 Number of APNIC addresses announced to Internet: 749027840 Equivalent to 44 /8s, 165 /16s and 66 /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: 302236 Total ARIN prefixes after maximum aggregation: 135674 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 301805 Unique aggregates announced from the ARIN address blocks: 146915 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: 7123 ARIN Region transit ASes present in the Internet Routing Table: 1916 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 24 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5543 Number of ARIN addresses announced to Internet: 1348120320 Equivalent to 80 /8s, 90 /16s and 175 /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: 287438 Total RIPE prefixes after maximum aggregation: 142344 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 289975 Unique aggregates announced from the RIPE address blocks: 188995 RIPE Region origin ASes present in the Internet Routing Table: 29377 RIPE Prefixes per ASN: 9.87 RIPE Region origin ASes announcing only one prefix: 12177 RIPE Region transit ASes present in the Internet Routing Table: 4061 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 30 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13254 Number of RIPE addresses announced to Internet: 733086208 Equivalent to 43 /8s, 178 /16s and 2 /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: 127997 Total LACNIC prefixes after maximum aggregation: 30857 LACNIC Deaggregation factor: 4.15 Prefixes being announced from the LACNIC address blocks: 122916 Unique aggregates announced from the LACNIC address blocks: 50262 LACNIC Region origin ASes present in the Internet Routing Table: 11387 LACNIC Prefixes per ASN: 10.79 LACNIC Region origin ASes announcing only one prefix: 2703 LACNIC Region transit ASes present in the Internet Routing Table: 2575 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: 9420 Number of LACNIC addresses announced to Internet: 169885440 Equivalent to 10 /8s, 32 /16s and 63 /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: 36877 Total AfriNIC prefixes after maximum aggregation: 7001 AfriNIC Deaggregation factor: 5.27 Prefixes being announced from the AfriNIC address blocks: 54042 Unique aggregates announced from the AfriNIC address blocks: 19522 AfriNIC Region origin ASes present in the Internet Routing Table: 2020 AfriNIC Prefixes per ASN: 26.75 AfriNIC Region origin ASes announcing only one prefix: 738 AfriNIC Region transit ASes present in the Internet Routing Table: 378 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: 1384 Number of AfriNIC addresses announced to Internet: 103314688 Equivalent to 6 /8s, 40 /16s and 117 /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 13835 8761 121 CHINAMOBILE-CN China Mobile Communication 7545 5915 828 498 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4909 550 330 BBIL-AP BHARTI Airtel Ltd., IN 18403 4577 347 26 FPT-AS-AP FPT Telecom Company, VN 7552 4060 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3671 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3487 887 177 CMNET-JIANGSU-AP China Mobile communicati 17561 3436 216 550 LCS-AS-AP LARUS Limited, HK 45899 3356 1868 100 VNPT-AS-VN VNPT Corp, VN 24560 3011 857 517 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 14671 41276 5674 AMAZON-02 - Amazon.com, Inc., US 22773 4781 3100 365 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4668 310 1038 CABLEONE - CABLE ONE, INC., US 7155 3870 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3724 1305 75 SHAW - Shaw Communications, CA 396982 3323 4859 495 GOOGLE-CLOUD-PLATFORM - Google LLC, US 174 3229 8766 826 COGENT-174 - Cogent Communications, LLC, 749 3140 54728 2391 DNIC-AS-00749 - United States Department 36352 2719 222 904 AS-COLOCROSSING - HostPapa, US 30036 2670 364 313 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 3828 354 2244 M247, RO 20940 3818 3389 110 AKAMAI-ASN1, NL 12389 3144 2318 871 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2720 197 2002 CDNEXT, GB 34984 2451 365 573 TELLCOM-AS, TR 8452 1725 1852 14 TE-AS TE-AS, EG 203020 1638 249 810 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 12750 3309 619 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 1289 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 553 57 59 WANANCHI-, KE 36914 548 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 14671 41276 5674 AMAZON-02 - Amazon.com, Inc., US 9808 13835 8761 121 CHINAMOBILE-CN China Mobile Communication 8151 12750 3309 619 UNINET, MX 12479 7161 1711 149 UNI2-AS, ES 7545 5915 828 498 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4972 306 72 ALJAWWALSTC-AS, SA 9498 4909 550 330 BBIL-AP BHARTI Airtel Ltd., IN 22773 4781 3100 365 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4668 310 1038 CABLEONE - CABLE ONE, INC., US 18403 4577 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 13835 13714 CHINAMOBILE-CN China Mobile Communications Grou 8151 12750 12131 UNINET, MX 12479 7161 7012 UNI2-AS, ES 7545 5915 5417 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4972 4900 ALJAWWALSTC-AS, SA 9498 4909 4579 BBIL-AP BHARTI Airtel Ltd., IN 18403 4577 4551 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 /15:2097 /16:13588 /17:8247 /18:13239 /19:25351 /20:45630 /21:52195 /22:113366 /23:106969 /24:656103 /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 6940 12750 UNINET, MX 12479 6104 7161 UNI2-AS, ES 39891 3656 4972 ALJAWWALSTC-AS, SA 11492 3529 4668 CABLEONE - CABLE ONE, INC., US 6327 3505 3724 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 2645 14671 AMAZON-02 - Amazon.com, Inc., US 30036 2322 2670 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 2:1827 3:1005 4:5 5:5185 6:197 7:6 8:1489 9:39 11:172 12:1185 13:693 14:2687 15:458 16:176 17:423 18:915 20:585 21:4 22:188 23:8142 24:2775 25:2 27:2810 28:1 29:19 31:3481 32:36 34:90 35:283 36:4676 37:4451 38:10114 39:1281 40:422 41:4548 42:2177 43:3103 44:445 45:19854 46:4854 47:408 48:125 49:2232 50:2023 51:626 52:1307 54:282 55:1123 56:11 57:321 58:2366 59:1386 60:1174 61:3155 62:3119 63:1718 64:6318 65:2138 66:6074 67:3261 68:1500 69:4210 70:1062 71:612 72:3192 74:3020 75:1491 76:587 77:2936 78:1970 79:1794 80:2348 81:2218 82:4034 83:1444 84:2134 85:3804 86:1091 87:2342 88:1342 89:4716 90:781 91:8423 92:2818 93:3006 94:4360 95:4656 96:1452 97:314 98:941 99:814 100:68 101:1628 102:4483 103:33030 104:5361 105:821 106:912 107:2877 108:1235 109:4210 110:2289 111:4110 112:3158 113:1969 114:2270 115:2289 116:2175 117:3505 118:2995 119:2107 120:2696 121:1547 122:2989 123:2266 124:1706 125:3006 126:125 128:1593 129:952 130:1626 131:2470 132:832 133:472 134:1666 135:610 136:1614 137:1342 138:3326 139:1628 140:1748 141:1727 142:2529 143:2126 144:1741 145:646 146:2200 147:2208 148:2775 149:3108 150:1371 151:2819 152:2313 153:1317 154:10118 155:2296 156:4666 157:2296 158:1536 159:2859 160:3824 161:1956 162:4023 163:2499 164:2040 165:2643 166:1260 167:2300 168:4025 169:855 170:5585 171:1126 172:4559 173:3482 174:878 175:1375 176:3873 177:4946 178:4355 179:2310 180:3170 181:4521 182:4006 183:2835 184:2027 185:21779 186:5795 187:4965 188:4606 189:4504 190:9859 191:1584 192:11449 193:9609 194:7867 195:5821 196:3352 197:3246 198:6120 199:6073 200:8064 201:6395 202:10671 203:10639 204:4775 205:3689 206:4504 207:3823 208:4373 209:5388 210:4709 211:2683 212:5025 213:4122 214:1043 215:47 216:7284 217:3545 218:1700 219:416 220:2198 221:1309 222:938 223:3420 End of report