IPv4 R&E Routing Table Report 23:00 GMT Thu 16 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: 1038824 Prefixes after maximum aggregation (per Origin AS): 398869 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 514135 Number of IPv4 prefixes with a valid ROA: 632220 Number of IPv4 prefixes with an invalid ROA: 435 Number of IPv4 prefixes with no ROA: 406169 Total ASes present in the Internet Routing Table: 78239 Prefixes per ASN: 13.28 Origin-only ASes present in the Internet Routing Table: 67050 Origin ASes announcing only one prefix: 27336 Transit ASes present in the Internet Routing Table: 11189 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: 1117 Number of instances of unregistered ASNs: 1149 Number of 32-bit ASNs allocated by the RIRs: 49323 Number of 32-bit ASNs visible in the Routing Table: 40350 Prefixes from 32-bit ASNs in the Routing Table: 228171 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: 3103514880 Equivalent to 184 /8s, 251 /16s and 225 /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: 338862 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 282826 Total APNIC prefixes after maximum aggregation: 82305 APNIC Deaggregation factor: 3.44 Prefixes being announced from the APNIC address blocks: 269810 Unique aggregates announced from the APNIC address blocks: 107668 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: 4610 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: 10714 Number of APNIC addresses announced to Internet: 748954112 Equivalent to 44 /8s, 164 /16s and 34 /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: 302315 Total ARIN prefixes after maximum aggregation: 135622 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 301926 Unique aggregates announced from the ARIN address blocks: 147086 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: 7121 ARIN Region transit ASes present in the Internet Routing Table: 1905 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: 1348106240 Equivalent to 80 /8s, 90 /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: 287758 Total RIPE prefixes after maximum aggregation: 142510 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 290243 Unique aggregates announced from the RIPE address blocks: 189329 RIPE Region origin ASes present in the Internet Routing Table: 29388 RIPE Prefixes per ASN: 9.88 RIPE Region origin ASes announcing only one prefix: 12183 RIPE Region transit ASes present in the Internet Routing Table: 4072 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: 733249792 Equivalent to 43 /8s, 180 /16s and 129 /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: 127792 Total LACNIC prefixes after maximum aggregation: 30797 LACNIC Deaggregation factor: 4.15 Prefixes being announced from the LACNIC address blocks: 122680 Unique aggregates announced from the LACNIC address blocks: 50209 LACNIC Region origin ASes present in the Internet Routing Table: 11360 LACNIC Prefixes per ASN: 10.80 LACNIC Region origin ASes announcing only one prefix: 2686 LACNIC Region transit ASes present in the Internet Routing Table: 2579 Average LACNIC Region AS path length visible: 5.5 Max LACNIC Region AS path length visible: 68 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9426 Number of LACNIC addresses announced to Internet: 169741568 Equivalent to 10 /8s, 30 /16s and 13 /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: 37016 Total AfriNIC prefixes after maximum aggregation: 6975 AfriNIC Deaggregation factor: 5.31 Prefixes being announced from the AfriNIC address blocks: 53635 Unique aggregates announced from the AfriNIC address blocks: 19438 AfriNIC Region origin ASes present in the Internet Routing Table: 2022 AfriNIC Prefixes per ASN: 26.53 AfriNIC Region origin ASes announcing only one prefix: 736 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: 52 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1388 Number of AfriNIC addresses announced to Internet: 103237888 Equivalent to 6 /8s, 39 /16s and 73 /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 5911 827 494 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4915 550 331 BBIL-AP BHARTI Airtel Ltd., IN 18403 4577 347 26 FPT-AS-AP FPT Telecom Company, VN 7552 4061 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3681 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3490 887 177 CMNET-JIANGSU-AP China Mobile communicati 45899 3357 1868 97 VNPT-AS-VN VNPT Corp, VN 24560 3006 855 529 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 17561 2887 182 489 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 14707 41275 5665 AMAZON-02 - Amazon.com, Inc., US 22773 4778 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 3731 1305 75 SHAW - Shaw Communications, CA 174 3333 8766 822 COGENT-174 - Cogent Communications, LLC, 396982 3324 4860 494 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3139 54728 2390 DNIC-AS-00749 - United States Department 36352 2728 223 909 AS-COLOCROSSING - HostPapa, US 30036 2674 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 3833 3389 110 AKAMAI-ASN1, NL 9009 3822 353 2243 M247, RO 12389 3144 2318 871 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2745 199 2025 CDNEXT, GB 34984 2450 365 574 TELLCOM-AS, TR 8452 1717 1852 14 TE-AS TE-AS, EG 203020 1664 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 12682 3299 643 UNINET, MX 10620 3430 450 1106 Telmex Colombia S.A., CO 13999 2435 506 345 Mega Cable, S.A. de C.V., MX 11830 1937 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 1073 2392 100 TIM SA, BR 22884 1057 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 1860 1533 336 ETISALAT-MISR, EG 24863 1283 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 36935 1224 521 42 Vodafone-, EG 37069 1113 1100 11 MOBINIL, EG 29571 1071 78 19 ORANGE-COTE-IVOIRE, CI 20011 589 155 220 NTT-DATA-Inc, ZA 15399 560 58 60 WANANCHI-, KE 36914 547 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 14707 41275 5665 AMAZON-02 - Amazon.com, Inc., US 9808 13839 8761 121 CHINAMOBILE-CN China Mobile Communication 8151 12682 3299 643 UNINET, MX 12479 7173 1711 149 UNI2-AS, ES 7545 5911 827 494 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4943 305 72 ALJAWWALSTC-AS, SA 9498 4915 550 331 BBIL-AP BHARTI Airtel Ltd., IN 22773 4778 3100 365 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4670 310 1039 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 13839 13718 CHINAMOBILE-CN China Mobile Communications Grou 8151 12682 12039 UNINET, MX 12479 7173 7024 UNI2-AS, ES 7545 5911 5417 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4943 4871 ALJAWWALSTC-AS, SA 9498 4915 4584 BBIL-AP BHARTI Airtel Ltd., IN 18403 4577 4551 FPT-AS-AP FPT Telecom Company, VN 22773 4778 4413 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4061 4033 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 198924 UNALLOCATED 2.26.126.0/24 137409 GSLNETWORKS-AS-AP GSL N 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 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 /16:13573 /17:8245 /18:13254 /19:25341 /20:45617 /21:52214 /22:113312 /23:106996 /24:655945 /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 6896 12682 UNINET, MX 12479 6114 7173 UNI2-AS, ES 39891 3628 4943 ALJAWWALSTC-AS, SA 11492 3531 4670 CABLEONE - CABLE ONE, INC., US 6327 3513 3731 SHAW - Shaw Communications, CA 22773 3050 4778 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2824 3870 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2642 14707 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) ---------------------------------------------- 1:2495 2:1841 3:1010 4:5 5:5189 6:197 7:6 8:1479 9:39 11:172 12:1186 13:696 14:2682 15:458 16:186 17:424 18:914 20:585 21:4 22:188 23:8148 24:2779 25:2 27:2818 28:1 29:19 31:3478 32:36 34:90 35:283 36:4692 37:4441 38:10188 39:1285 40:417 41:4530 42:2184 43:3101 44:445 45:19802 46:4858 47:409 48:125 49:2233 50:2014 51:642 52:1310 54:285 55:1114 56:11 57:322 58:2366 59:1387 60:1173 61:3155 62:3119 63:1718 64:6316 65:2133 66:6082 67:3261 68:1502 69:4211 70:1060 71:612 72:3203 74:3018 75:1487 76:588 77:2944 78:1976 79:1793 80:2343 81:2228 82:4071 83:1442 84:2139 85:3816 86:1090 87:2369 88:1341 89:4737 90:799 91:8425 92:2816 93:3009 94:4345 95:4668 96:1453 97:313 98:939 99:815 100:68 101:1633 102:4501 103:32971 104:5363 105:854 106:913 107:2889 108:1245 109:4231 110:2289 111:4113 112:3161 113:1970 114:2275 115:2277 116:2181 117:3506 118:2955 119:2106 120:2702 121:1542 122:2990 123:2267 124:1700 125:3008 126:126 128:1582 129:958 130:1626 131:2466 132:832 133:472 134:1670 135:609 136:1594 137:1342 138:3333 139:1636 140:1748 141:1725 142:2537 143:2102 144:1762 145:643 146:2200 147:2224 148:2778 149:3125 150:1372 151:2850 152:2315 153:1328 154:9853 155:2304 156:4451 157:2293 158:1541 159:2861 160:3826 161:1955 162:4033 163:2503 164:2041 165:2644 166:1270 167:2296 168:4023 169:856 170:5581 171:1128 172:4602 173:3484 174:883 175:1366 176:3871 177:4893 178:4342 179:2322 180:3198 181:4548 182:4021 183:2832 184:2034 185:21756 186:5795 187:4944 188:4586 189:4492 190:9838 191:1563 192:11389 193:9618 194:7862 195:5809 196:3357 197:3352 198:6112 199:6065 200:8066 201:6373 202:10681 203:10643 204:4777 205:3663 206:4498 207:3826 208:4375 209:5386 210:4708 211:2682 212:5085 213:4118 214:1043 215:47 216:7288 217:3567 218:1699 219:416 220:2195 221:1310 222:937 223:3424 End of report