IPv4 R&E Routing Table Report 23:00 GMT Mon 25 May, 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: 1047525 Prefixes after maximum aggregation (per Origin AS): 402129 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 517845 Number of IPv4 prefixes with a valid ROA: 659263 Number of IPv4 prefixes with an invalid ROA: 499 Number of IPv4 prefixes with no ROA: 387763 Total ASes present in the Internet Routing Table: 78438 Prefixes per ASN: 13.35 Origin-only ASes present in the Internet Routing Table: 67233 Origin ASes announcing only one prefix: 27439 Transit ASes present in the Internet Routing Table: 11205 Transit-only ASes present in the Internet Routing Table: 583 Paths with bogon ASNs present in the IPv4 Routing Table: 42 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: 1142 Number of instances of unregistered ASNs: 1172 Number of 32-bit ASNs allocated by the RIRs: 49892 Number of 32-bit ASNs visible in the Routing Table: 40652 Prefixes from 32-bit ASNs in the Routing Table: 230697 Number of bogon 32-bit ASNs visible in the Routing Table: 76 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 422 Number of addresses announced to Internet: 3103975936 Equivalent to 185 /8s, 2 /16s and 234 /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: 342717 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 285927 Total APNIC prefixes after maximum aggregation: 82949 APNIC Deaggregation factor: 3.45 Prefixes being announced from the APNIC address blocks: 272522 Unique aggregates announced from the APNIC address blocks: 108038 APNIC Region origin ASes present in the Internet Routing Table: 15164 APNIC Prefixes per ASN: 17.97 APNIC Region origin ASes announcing only one prefix: 4596 APNIC Region transit ASes present in the Internet Routing Table: 2042 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 36 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10771 Number of APNIC addresses announced to Internet: 747655936 Equivalent to 44 /8s, 144 /16s and 83 /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: 302664 Total ARIN prefixes after maximum aggregation: 136913 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 301609 Unique aggregates announced from the ARIN address blocks: 147785 ARIN Region origin ASes present in the Internet Routing Table: 19401 ARIN Prefixes per ASN: 15.55 ARIN Region origin ASes announcing only one prefix: 7131 ARIN Region transit ASes present in the Internet Routing Table: 1893 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: 5585 Number of ARIN addresses announced to Internet: 1348118016 Equivalent to 80 /8s, 90 /16s and 166 /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: 290552 Total RIPE prefixes after maximum aggregation: 143731 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 293741 Unique aggregates announced from the RIPE address blocks: 191797 RIPE Region origin ASes present in the Internet Routing Table: 29517 RIPE Prefixes per ASN: 9.95 RIPE Region origin ASes announcing only one prefix: 12246 RIPE Region transit ASes present in the Internet Routing Table: 4090 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 35 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13451 Number of RIPE addresses announced to Internet: 734023680 Equivalent to 43 /8s, 192 /16s and 80 /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: 129712 Total LACNIC prefixes after maximum aggregation: 30844 LACNIC Deaggregation factor: 4.21 Prefixes being announced from the LACNIC address blocks: 124181 Unique aggregates announced from the LACNIC address blocks: 50340 LACNIC Region origin ASes present in the Internet Routing Table: 11405 LACNIC Prefixes per ASN: 10.89 LACNIC Region origin ASes announcing only one prefix: 2734 LACNIC Region transit ASes present in the Internet Routing Table: 2589 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: 9449 Number of LACNIC addresses announced to Internet: 169742080 Equivalent to 10 /8s, 30 /16s and 15 /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: 37528 Total AfriNIC prefixes after maximum aggregation: 7026 AfriNIC Deaggregation factor: 5.34 Prefixes being announced from the AfriNIC address blocks: 55050 Unique aggregates announced from the AfriNIC address blocks: 19521 AfriNIC Region origin ASes present in the Internet Routing Table: 2031 AfriNIC Prefixes per ASN: 27.10 AfriNIC Region origin ASes announcing only one prefix: 732 AfriNIC Region transit ASes present in the Internet Routing Table: 387 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: 1396 Number of AfriNIC addresses announced to Internet: 104242688 Equivalent to 6 /8s, 54 /16s and 158 /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 13920 8761 121 AS9808-560 - China Mobile, CN 7545 5875 825 476 TPG-INTERNET-AP - TPG Telecom Limited, AU 9498 4940 552 324 AS9498-250 - Bharti Airtel Limited, IN 18403 4539 347 25 FPT-AP - FPT Telecom Company, VN 7552 4061 1331 26 VIETEL-AS-AP - Viettel Group, VN 7713 3724 1044 64 telkomnet-as-ap - PT Telekomunikasi Indon 56046 3544 887 177 AS56046-751 - China Mobile Communications 17561 3459 218 602 LCS-AS-AP - LARUS Limited, HK 45899 3377 1868 100 VNPT-AS-VN - VNNIC-ASBLOCK-VN, VN 24560 2738 745 734 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 15000 41424 5718 AMAZON-02 - Amazon.com, Inc., US 22773 4772 3115 368 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4593 305 1087 CABLEONE - CABLE ONE, INC., US 7155 3870 286 90 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3724 1305 74 SHAW - Shaw Communications, CA 396982 3353 4865 508 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3138 54728 2389 DNIC-AS-00749 - United States Department 36352 3055 231 1026 AS-COLOCROSSING - HostPapa, US 7029 2639 2558 889 WINDSTREAM - Windstream Communications LL 30036 2539 352 598 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 7133 1711 149 UNI2-AS - Orange Espagne SA, ES 39891 4975 307 72 ALJAWWALSTC-AS - Saudi Telecom Company JS 9009 4069 371 2461 M247 - M247 Europe SRL, RO 20940 3788 3389 109 AKAMAI-ASN1 - Akamai International B.V., 12389 3148 2318 867 ROSTELECOM-AS - PJSC Rostelecom, RU 212238 2855 210 2121 CDNEXT - Datacamp Limited, GB 34984 2488 367 582 TELLCOM-AS - Superonline Iletisim Hizmetl 8452 1722 1852 14 TE-AS - IDDQD-AS, EG 203020 1651 252 825 HostRoyale - HostRoyale Technologies Pvt 44559 1625 102 670 ITHOSTLINE - IT HOSTLINE LTD, CY 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 12756 3254 631 AS8151 - UNINET, MX 10620 3432 450 1101 AS10620 - Telmex Colombia S.A., CO 13999 2354 501 355 AS13999 - Mega Cable, S.A. de C.V., MX 11830 1935 369 65 AS11830 - Instituto Costarricense de Elec 11664 1471 277 34 AS11664 - Techtel LMDS Comunicaciones Int 28573 1364 2431 268 AS28573 - Claro NXT Telecomunicacoes Ltda 3816 1342 770 213 AS3816 - COLOMBIA TELECOMUNICACIONES S.A. 6147 1224 371 22 AS6147 - INTEGRATEL PERU S.A.A., PE 22884 1078 71 364 AS22884 - TOTAL PLAY TELECOMUNICACIONES, 26615 1072 2392 100 AS26615 - TIM S/A, BR 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 2028 649 36 Vodafone Data - Vodafone Data, EG 36992 1860 1532 337 ETISALAT MISR - ETISALAT MISR, EG 36935 1292 523 45 Vodafone Data - Vodafone Data, EG 24863 1268 389 16 Link Egypt (Link.NET) - Link Egypt (Link. 36903 1232 555 98 Office National des Postes et Telecommuni 37069 1117 1100 11 The Egyptian Company for Mobile Services 29571 1086 70 18 Orange Côte d'Ivoire - Orange Côte d'Iv 328608 627 57 174 Africa on Cloud - Africa on Cloud, ZA 20011 589 155 220 Dimension Data - Dimension Data, ZA 36914 556 82 3 Kenya Education Network - Kenya Education 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 15000 41424 5718 AMAZON-02 - Amazon.com, Inc., US 9808 13920 8761 121 AS9808-560 - China Mobile, CN 8151 12756 3254 631 AS8151 - UNINET, MX 12479 7133 1711 149 UNI2-AS - Orange Espagne SA, ES 7545 5875 825 476 TPG-INTERNET-AP - TPG Telecom Limited, AU 39891 4975 307 72 ALJAWWALSTC-AS - Saudi Telecom Company JS 9498 4940 552 324 AS9498-250 - Bharti Airtel Limited, IN 22773 4772 3115 368 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4593 305 1087 CABLEONE - CABLE ONE, INC., US 18403 4539 347 25 FPT-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 13920 13799 AS9808-560 - China Mobile, CN 8151 12756 12125 AS8151 - UNINET, MX 12479 7133 6984 UNI2-AS - Orange Espagne SA, ES 7545 5875 5399 TPG-INTERNET-AP - TPG Telecom Limited, AU 39891 4975 4903 ALJAWWALSTC-AS - Saudi Telecom Company JSC, SA 9498 4940 4616 AS9498-250 - Bharti Airtel Limited, IN 18403 4539 4514 FPT-AP - FPT Telecom Company, VN 22773 4772 4404 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4061 4035 VIETEL-AS-AP - Viettel Group, VN 7155 3870 3780 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 46198 UNALLOCATED 8.10.6.0/24 23520 LIBERTY-NETWORKS - Colu 46198 UNALLOCATED 8.10.7.0/24 23520 LIBERTY-NETWORKS - Colu 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 400273 UNALLOCATED 8.41.137.0/24 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 Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.131.100.0/24 Origin: 401541 UNASSIGNED 23.131.100.0/24 Transit: 38733 CMCTELECOM-VN - VNNIC-ASBLOCK-VN, VN 23.131.156.0/24 Origin: 401541 UNASSIGNED 23.131.156.0/24 Transit: 38733 CMCTELECOM-VN - VNNIC-ASBLOCK-VN, VN 23.131.212.0/24 Origin: 401541 UNASSIGNED 23.131.212.0/24 Transit: 38733 CMCTELECOM-VN - VNNIC-ASBLOCK-VN, VN 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 - OVH SAS, FR 23.137.200.0/24 Transit: 5511 Opentransit - Orange S.A., FR 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 /12:298 /13:580 /14:1184 /15:2104 /16:13572 /17:8225 /18:13278 /19:25403 /20:45705 /21:52341 /22:113381 /23:108394 /24:662896 /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 6977 12756 AS8151 - UNINET, MX 12479 6069 7133 UNI2-AS - Orange Espagne SA, ES 39891 3660 4975 ALJAWWALSTC-AS - Saudi Telecom Company JSC, SA 6327 3506 3724 SHAW - Shaw Communications, CA 11492 3469 4593 CABLEONE - CABLE ONE, INC., US 22773 3062 4772 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2825 3870 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2720 15000 AMAZON-02 - Amazon.com, Inc., US 10620 2236 3432 AS10620 - Telmex Colombia S.A., CO 30036 2194 2539 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2514 2:2046 3:995 4:5 5:5188 6:203 7:6 8:1475 9:62 11:172 12:1130 13:700 14:2718 15:467 16:215 17:443 18:918 20:594 21:4 22:188 23:8371 24:2775 25:2 27:2778 28:1 29:19 31:3613 32:36 34:91 35:284 36:4800 37:4427 38:9707 39:1304 40:412 41:4560 42:2168 43:3207 44:449 45:19834 46:4879 47:436 48:157 49:2367 50:2024 51:809 52:1335 54:287 55:1103 56:11 57:323 58:2369 59:1375 60:1175 61:3157 62:3137 63:1675 64:6354 65:2153 66:6119 67:3274 68:1518 69:4230 70:1063 71:608 72:3185 74:3065 75:1500 76:597 77:2946 78:2038 79:1786 80:2342 81:2267 82:4164 83:1451 84:2152 85:3850 86:1096 87:2604 88:1316 89:4775 90:793 91:8461 92:2777 93:3023 94:4409 95:4689 96:1443 97:307 98:946 99:842 100:70 101:1628 102:4647 103:32972 104:5436 105:852 106:920 107:2950 108:1278 109:4271 110:2290 111:4125 112:3159 113:2018 114:2532 115:2313 116:2086 117:3588 118:3038 119:2097 120:2725 121:1547 122:3009 123:2210 124:1709 125:3031 126:158 128:1568 129:963 130:1671 131:2433 132:885 133:490 134:1720 135:617 136:1459 137:1361 138:3412 139:1709 140:1842 141:1779 142:2556 143:2039 144:1787 145:635 146:2180 147:2237 148:2797 149:3167 150:1384 151:2950 152:2579 153:1641 154:9561 155:2280 156:5097 157:2498 158:1577 159:2869 160:3864 161:1976 162:4107 163:2614 164:2459 165:2685 166:1266 167:2335 168:4076 169:867 170:5576 171:1139 172:4795 173:3441 174:885 175:1376 176:3936 177:5061 178:4413 179:2384 180:3207 181:4597 182:4044 183:2846 184:2016 185:21798 186:6230 187:5069 188:4527 189:4539 190:9882 191:2003 192:11555 193:9606 194:7862 195:5829 196:3400 197:3333 198:6119 199:6066 200:8138 201:6403 202:10659 203:10658 204:4760 205:3673 206:4375 207:3840 208:4369 209:5423 210:4715 211:2692 212:5075 213:4115 214:1039 215:47 216:7305 217:3615 218:1800 219:417 220:2206 221:1349 222:937 223:3458 End of report