IPv4 R&E Routing Table Report 23:00 GMT Fri 17 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: 1038264 Prefixes after maximum aggregation (per Origin AS): 398963 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 514366 Number of IPv4 prefixes with a valid ROA: 631761 Number of IPv4 prefixes with an invalid ROA: 420 Number of IPv4 prefixes with no ROA: 406083 Total ASes present in the Internet Routing Table: 78229 Prefixes per ASN: 13.27 Origin-only ASes present in the Internet Routing Table: 67044 Origin ASes announcing only one prefix: 27348 Transit ASes present in the Internet Routing Table: 11185 Transit-only ASes present in the Internet Routing Table: 589 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: 216 Max AS path prepend of ASN (205624) 211 Prefixes from unregistered ASNs in the Routing Table: 1116 Number of instances of unregistered ASNs: 1148 Number of 32-bit ASNs allocated by the RIRs: 49347 Number of 32-bit ASNs visible in the Routing Table: 40349 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: 530 Number of addresses announced to Internet: 3103109888 Equivalent to 184 /8s, 245 /16s and 179 /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: 338777 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 282564 Total APNIC prefixes after maximum aggregation: 82321 APNIC Deaggregation factor: 3.43 Prefixes being announced from the APNIC address blocks: 269867 Unique aggregates announced from the APNIC address blocks: 107729 APNIC Region origin ASes present in the Internet Routing Table: 15124 APNIC Prefixes per ASN: 17.84 APNIC Region origin ASes announcing only one prefix: 4612 APNIC Region transit ASes present in the Internet Routing Table: 2050 Average APNIC Region AS path length visible: 4.5 Max APNIC Region AS path length visible: 52 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10717 Number of APNIC addresses announced to Internet: 749014528 Equivalent to 44 /8s, 165 /16s and 14 /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: 302122 Total ARIN prefixes after maximum aggregation: 135619 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 301728 Unique aggregates announced from the ARIN address blocks: 147065 ARIN Region origin ASes present in the Internet Routing Table: 19385 ARIN Prefixes per ASN: 15.57 ARIN Region origin ASes announcing only one prefix: 7114 ARIN Region transit ASes present in the Internet Routing Table: 1904 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 216 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5544 Number of ARIN addresses announced to Internet: 1347467008 Equivalent to 80 /8s, 80 /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: 288007 Total RIPE prefixes after maximum aggregation: 142635 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 290528 Unique aggregates announced from the RIPE address blocks: 189553 RIPE Region origin ASes present in the Internet Routing Table: 29392 RIPE Prefixes per ASN: 9.88 RIPE Region origin ASes announcing only one prefix: 12184 RIPE Region transit ASes present in the Internet Routing Table: 4076 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: 13274 Number of RIPE addresses announced to Internet: 733383936 Equivalent to 43 /8s, 182 /16s and 141 /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: 127522 Total LACNIC prefixes after maximum aggregation: 30760 LACNIC Deaggregation factor: 4.15 Prefixes being announced from the LACNIC address blocks: 122386 Unique aggregates announced from the LACNIC address blocks: 50294 LACNIC Region origin ASes present in the Internet Routing Table: 11360 LACNIC Prefixes per ASN: 10.77 LACNIC Region origin ASes announcing only one prefix: 2700 LACNIC Region transit ASes present in the Internet Routing Table: 2573 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: 9428 Number of LACNIC addresses announced to Internet: 169817344 Equivalent to 10 /8s, 31 /16s and 53 /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: 36933 Total AfriNIC prefixes after maximum aggregation: 6973 AfriNIC Deaggregation factor: 5.30 Prefixes being announced from the AfriNIC address blocks: 53225 Unique aggregates announced from the AfriNIC address blocks: 19319 AfriNIC Region origin ASes present in the Internet Routing Table: 2020 AfriNIC Prefixes per ASN: 26.35 AfriNIC Region origin ASes announcing only one prefix: 738 AfriNIC Region transit ASes present in the Internet Routing Table: 383 Average AfriNIC Region AS path length visible: 5.2 Max AfriNIC Region AS path length visible: 70 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1386 Number of AfriNIC addresses announced to Internet: 103202048 Equivalent to 6 /8s, 38 /16s and 189 /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 13839 8761 121 CHINAMOBILE-CN China Mobile Communication 7545 5906 827 490 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4917 550 330 BBIL-AP BHARTI Airtel Ltd., IN 18403 4560 347 26 FPT-AS-AP FPT Telecom Company, VN 7552 4062 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3680 1044 64 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3490 887 177 CMNET-JIANGSU-AP China Mobile communicati 45899 3360 1868 100 VNPT-AS-VN VNPT Corp, VN 24560 3005 855 532 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 17561 2562 161 504 LCS-AS-AP LARUS Limited, HK 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 14700 41275 5673 AMAZON-02 - Amazon.com, Inc., US 22773 4779 3100 365 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4670 310 1039 CABLEONE - CABLE ONE, INC., US 7155 3870 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3723 1305 75 SHAW - Shaw Communications, CA 174 3334 8766 823 COGENT-174 - Cogent Communications, LLC, 396982 3323 4859 498 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3139 54728 2390 DNIC-AS-00749 - United States Department 36352 2749 224 918 AS-COLOCROSSING - HostPapa, US 30036 2676 367 303 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 7171 1711 149 UNI2-AS, ES 39891 4909 302 70 ALJAWWALSTC-AS, SA 20940 3836 3389 110 AKAMAI-ASN1, NL 9009 3826 353 2247 M247, RO 12389 3145 2320 870 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2746 199 2026 CDNEXT, GB 34984 2451 365 575 TELLCOM-AS, TR 8452 1712 1852 14 TE-AS TE-AS, EG 203020 1667 252 832 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 12836 3317 614 UNINET, MX 10620 3430 450 1106 Telmex Colombia S.A., CO 13999 2436 506 346 Mega Cable, S.A. de C.V., MX 11830 1932 369 65 Instituto Costarricense de Electricidad y 11664 1437 277 34 Techtel LMDS Comunicaciones Interactivas 28573 1372 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 1073 2392 100 TIM SA, BR 22884 1062 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 1533 336 ETISALAT-MISR, EG 24863 1282 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 36935 1223 520 41 Vodafone-, EG 37069 1113 1100 11 MOBINIL, EG 29571 1071 78 19 ORANGE-COTE-IVOIRE, CI 20011 589 155 220 NTT-DATA-Inc, ZA 36914 549 82 3 KENET-AS, KE 37342 541 32 1 MOVITEL, MZ 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 14700 41275 5673 AMAZON-02 - Amazon.com, Inc., US 9808 13839 8761 121 CHINAMOBILE-CN China Mobile Communication 8151 12836 3317 614 UNINET, MX 12479 7171 1711 149 UNI2-AS, ES 7545 5906 827 490 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4917 550 330 BBIL-AP BHARTI Airtel Ltd., IN 39891 4909 302 70 ALJAWWALSTC-AS, SA 22773 4779 3100 365 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4670 310 1039 CABLEONE - CABLE ONE, INC., US 18403 4560 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 13839 13718 CHINAMOBILE-CN China Mobile Communications Grou 8151 12836 12222 UNINET, MX 12479 7171 7022 UNI2-AS, ES 7545 5906 5416 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4909 4839 ALJAWWALSTC-AS, SA 9498 4917 4587 BBIL-AP BHARTI Airtel Ltd., IN 18403 4560 4534 FPT-AS-AP FPT Telecom Company, VN 22773 4779 4414 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4062 4034 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 /15:2098 /16:13564 /17:8239 /18:13255 /19:25348 /20:45599 /21:52216 /22:113249 /23:106980 /24:655487 /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 7024 12836 UNINET, MX 12479 6112 7171 UNI2-AS, ES 39891 3595 4909 ALJAWWALSTC-AS, SA 11492 3531 4670 CABLEONE - CABLE ONE, INC., US 6327 3505 3723 SHAW - Shaw Communications, CA 22773 3051 4779 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2824 3870 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2647 14700 AMAZON-02 - Amazon.com, Inc., US 30036 2328 2676 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) ---------------------------------------------- 1:2494 2:1847 3:1007 4:5 5:5190 6:198 7:6 8:1476 9:39 11:172 12:1182 13:690 14:2687 15:459 16:190 17:424 18:915 20:585 21:4 22:188 23:8164 24:2778 25:2 27:2818 28:1 29:19 31:3471 32:36 34:90 35:283 36:4694 37:4439 38:10185 39:1285 40:417 41:4530 42:2174 43:3099 44:446 45:19769 46:4872 47:411 48:125 49:2233 50:2017 51:647 52:1311 54:285 55:1111 56:11 57:322 58:2363 59:1386 60:1174 61:3155 62:3121 63:1715 64:6316 65:2124 66:6073 67:3261 68:1501 69:4216 70:1060 71:612 72:3198 74:3021 75:1501 76:588 77:2943 78:1979 79:1793 80:2342 81:2231 82:4082 83:1443 84:2137 85:3817 86:1091 87:2365 88:1341 89:4743 90:800 91:8427 92:2814 93:3008 94:4348 95:4671 96:1453 97:313 98:941 99:815 100:70 101:1635 102:4491 103:32974 104:5360 105:854 106:912 107:2890 108:1248 109:4232 110:2289 111:4112 112:3161 113:1970 114:2275 115:2277 116:2174 117:3507 118:2955 119:2106 120:2702 121:1542 122:2990 123:2267 124:1700 125:3010 126:126 128:1580 129:962 130:1628 131:2461 132:839 133:472 134:1672 135:610 136:1595 137:1344 138:3308 139:1629 140:1749 141:1726 142:2534 143:2105 144:1761 145:645 146:2203 147:2224 148:2786 149:3137 150:1374 151:2846 152:2319 153:1335 154:9406 155:2299 156:4575 157:2298 158:1543 159:2861 160:3831 161:1948 162:4006 163:2500 164:2041 165:2650 166:1271 167:2299 168:4003 169:856 170:5550 171:1128 172:4646 173:3469 174:883 175:1367 176:3871 177:4814 178:4350 179:2307 180:3199 181:4550 182:4021 183:2829 184:2035 185:21791 186:5773 187:4964 188:4558 189:4520 190:9830 191:1539 192:11424 193:9626 194:7883 195:5792 196:3341 197:3324 198:6110 199:6056 200:8046 201:6378 202:10685 203:10639 204:4758 205:3656 206:4497 207:3836 208:4370 209:5389 210:4706 211:2682 212:5094 213:4121 214:1043 215:47 216:7288 217:3570 218:1700 219:416 220:2197 221:1310 222:936 223:3428 End of report