IPv4 R&E Routing Table Report 23:00 GMT Sun 19 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: 1039406 Prefixes after maximum aggregation (per Origin AS): 399277 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 514797 Number of IPv4 prefixes with a valid ROA: 632776 Number of IPv4 prefixes with an invalid ROA: 436 Number of IPv4 prefixes with no ROA: 406194 Total ASes present in the Internet Routing Table: 78267 Prefixes per ASN: 13.28 Origin-only ASes present in the Internet Routing Table: 67076 Origin ASes announcing only one prefix: 27359 Transit ASes present in the Internet Routing Table: 11191 Transit-only ASes present in the Internet Routing Table: 590 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: 1067 Number of instances of unregistered ASNs: 1099 Number of 32-bit ASNs allocated by the RIRs: 49402 Number of 32-bit ASNs visible in the Routing Table: 40378 Prefixes from 32-bit ASNs in the Routing Table: 228456 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: 490 Number of addresses announced to Internet: 3103609344 Equivalent to 184 /8s, 253 /16s and 82 /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: 339203 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 282954 Total APNIC prefixes after maximum aggregation: 82384 APNIC Deaggregation factor: 3.43 Prefixes being announced from the APNIC address blocks: 269835 Unique aggregates announced from the APNIC address blocks: 107748 APNIC Region origin ASes present in the Internet Routing Table: 15139 APNIC Prefixes per ASN: 17.82 APNIC Region origin ASes announcing only one prefix: 4627 APNIC Region transit ASes present in the Internet Routing Table: 2047 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: 10731 Number of APNIC addresses announced to Internet: 748978432 Equivalent to 44 /8s, 164 /16s and 129 /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: 302443 Total ARIN prefixes after maximum aggregation: 135738 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 302032 Unique aggregates announced from the ARIN address blocks: 147154 ARIN Region origin ASes present in the Internet Routing Table: 19396 ARIN Prefixes per ASN: 15.57 ARIN Region origin ASes announcing only one prefix: 7119 ARIN Region transit ASes present in the Internet Routing Table: 1906 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: 5548 Number of ARIN addresses announced to Internet: 1347975168 Equivalent to 80 /8s, 88 /16s and 120 /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: 288190 Total RIPE prefixes after maximum aggregation: 142733 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 290725 Unique aggregates announced from the RIPE address blocks: 189723 RIPE Region origin ASes present in the Internet Routing Table: 29405 RIPE Prefixes per ASN: 9.89 RIPE Region origin ASes announcing only one prefix: 12180 RIPE Region transit ASes present in the Internet Routing Table: 4077 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: 13286 Number of RIPE addresses announced to Internet: 733392640 Equivalent to 43 /8s, 182 /16s and 175 /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: 127698 Total LACNIC prefixes after maximum aggregation: 30783 LACNIC Deaggregation factor: 4.15 Prefixes being announced from the LACNIC address blocks: 122565 Unique aggregates announced from the LACNIC address blocks: 50316 LACNIC Region origin ASes present in the Internet Routing Table: 11364 LACNIC Prefixes per ASN: 10.79 LACNIC Region origin ASes announcing only one prefix: 2694 LACNIC Region transit ASes present in the Internet Routing Table: 2577 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: 9424 Number of LACNIC addresses announced to Internet: 169788416 Equivalent to 10 /8s, 30 /16s and 196 /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: 37054 Total AfriNIC prefixes after maximum aggregation: 7004 AfriNIC Deaggregation factor: 5.29 Prefixes being announced from the AfriNIC address blocks: 53759 Unique aggregates announced from the AfriNIC address blocks: 19472 AfriNIC Region origin ASes present in the Internet Routing Table: 2025 AfriNIC Prefixes per ASN: 26.55 AfriNIC Region origin ASes announcing only one prefix: 739 AfriNIC Region transit ASes present in the Internet Routing Table: 379 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: 1389 Number of AfriNIC addresses announced to Internet: 103258880 Equivalent to 6 /8s, 39 /16s and 155 /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 13837 8761 121 CHINAMOBILE-CN China Mobile Communication 7545 5906 827 490 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4922 551 331 BBIL-AP BHARTI Airtel Ltd., IN 18403 4543 347 26 FPT-AS-AP FPT Telecom Company, VN 7552 4056 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 3361 1868 100 VNPT-AS-VN VNPT Corp, VN 24560 2991 847 549 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 17561 2892 182 493 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 14732 41292 5670 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 3332 8766 823 COGENT-174 - Cogent Communications, LLC, 396982 3325 4860 500 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3140 54728 2391 DNIC-AS-00749 - United States Department 36352 2749 224 918 AS-COLOCROSSING - HostPapa, US 30036 2677 367 304 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 7173 1711 149 UNI2-AS, ES 39891 4943 305 72 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 1707 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 3309 618 UNINET, MX 10620 3429 450 1105 Telmex Colombia S.A., CO 13999 2436 506 346 Mega Cable, S.A. de C.V., MX 11830 1937 369 65 Instituto Costarricense de Electricidad y 11664 1437 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 1072 2392 100 TIM SA, BR 22884 1062 71 362 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 2024 648 34 RAYA-AS, EG 36992 1859 1533 336 ETISALAT-MISR, EG 24863 1283 389 16 LINKdotNET-AS, EG 36935 1241 522 44 Vodafone-, EG 36903 1232 555 98 MT-MPLS, MA 37069 1113 1100 11 MOBINIL, EG 29571 1071 78 19 ORANGE-COTE-IVOIRE, CI 20011 589 155 220 NTT-DATA-Inc, ZA 15399 555 57 59 WANANCHI-, KE 36914 543 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 14732 41292 5670 AMAZON-02 - Amazon.com, Inc., US 9808 13837 8761 121 CHINAMOBILE-CN China Mobile Communication 8151 12836 3309 618 UNINET, MX 12479 7173 1711 149 UNI2-AS, ES 7545 5906 827 490 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4943 305 72 ALJAWWALSTC-AS, SA 9498 4922 551 331 BBIL-AP BHARTI Airtel Ltd., IN 22773 4779 3100 365 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4670 310 1039 CABLEONE - CABLE ONE, INC., US 18403 4543 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 13837 13716 CHINAMOBILE-CN China Mobile Communications Grou 8151 12836 12218 UNINET, MX 12479 7173 7024 UNI2-AS, ES 7545 5906 5416 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4943 4871 ALJAWWALSTC-AS, SA 9498 4922 4591 BBIL-AP BHARTI Airtel Ltd., IN 18403 4543 4517 FPT-AS-AP FPT Telecom Company, VN 22773 4779 4414 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4056 4028 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 /16:13570 /17:8241 /18:13249 /19:25352 /20:45604 /21:52216 /22:113268 /23:107067 /24:656512 /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 7025 12836 UNINET, MX 12479 6114 7173 UNI2-AS, ES 39891 3628 4943 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 2649 14732 AMAZON-02 - Amazon.com, Inc., US 30036 2329 2677 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2233 3429 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) ---------------------------------------------- 1:2491 2:1862 3:1009 4:5 5:5197 6:198 7:6 8:1487 9:39 11:172 12:1189 13:693 14:2687 15:459 16:199 17:424 18:915 20:585 21:4 22:188 23:8166 24:2778 25:2 27:2819 28:1 29:19 31:3469 32:36 34:90 35:283 36:4695 37:4431 38:10196 39:1285 40:417 41:4547 42:2171 43:3099 44:447 45:19768 46:4875 47:411 48:125 49:2234 50:2019 51:661 52:1313 54:285 55:1112 56:11 57:322 58:2363 59:1385 60:1174 61:3156 62:3121 63:1717 64:6330 65:2132 66:6075 67:3260 68:1501 69:4212 70:1058 71:612 72:3208 74:3025 75:1501 76:588 77:2944 78:1979 79:1790 80:2345 81:2232 82:4104 83:1443 84:2138 85:3829 86:1091 87:2368 88:1341 89:4750 90:801 91:8431 92:2817 93:3007 94:4350 95:4674 96:1456 97:313 98:941 99:815 100:70 101:1635 102:4518 103:32977 104:5353 105:861 106:912 107:2889 108:1249 109:4250 110:2289 111:4113 112:3161 113:1962 114:2275 115:2277 116:2177 117:3506 118:2950 119:2111 120:2702 121:1542 122:2990 123:2266 124:1699 125:3011 126:126 128:1583 129:958 130:1629 131:2463 132:841 133:472 134:1675 135:613 136:1595 137:1345 138:3315 139:1633 140:1749 141:1727 142:2537 143:2106 144:1766 145:644 146:2204 147:2226 148:2782 149:3137 150:1376 151:2852 152:2319 153:1345 154:9859 155:2300 156:4541 157:2301 158:1548 159:2860 160:3822 161:1956 162:4039 163:2493 164:2037 165:2651 166:1271 167:2305 168:4012 169:856 170:5564 171:1128 172:4645 173:3485 174:882 175:1366 176:3872 177:4806 178:4354 179:2344 180:3198 181:4548 182:4020 183:2828 184:2033 185:21814 186:5797 187:4956 188:4587 189:4518 190:9834 191:1544 192:11441 193:9628 194:7881 195:5814 196:3356 197:3353 198:6110 199:6062 200:8069 201:6386 202:10690 203:10627 204:4763 205:3663 206:4497 207:3837 208:4381 209:5396 210:4707 211:2682 212:5100 213:4124 214:1042 215:47 216:7287 217:3573 218:1700 219:416 220:2197 221:1309 222:936 223:3428 End of report