IPv4 R&E Routing Table Report 23:05 GMT Sun 26 Feb, 2023 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: 906656 Prefixes after maximum aggregation (per Origin AS): 345585 Deaggregation factor: 2.62 Unique aggregates announced (without unneeded subnets): 446043 Number of IPv4 prefixes with a valid ROA: 375403 Number of IPv4 prefixes with an invalid ROA: 1599 Number of IPv4 prefixes with no ROA: 529654 Total ASes present in the Internet Routing Table: 74006 Prefixes per ASN: 12.25 Origin-only ASes present in the Internet Routing Table: 63549 Origin ASes announcing only one prefix: 26107 Transit ASes present in the Internet Routing Table: 10457 Transit-only ASes present in the Internet Routing Table: 444 Paths with bogon ASNs present in the IPv4 Routing Table: 25 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 66 Max AS path prepend of ASN ( 37447) 64 Prefixes from unregistered ASNs in the Routing Table: 1033 Number of instances of unregistered ASNs: 1039 Number of 32-bit ASNs allocated by the RIRs: 41307 Number of 32-bit ASNs visible in the Routing Table: 34193 Prefixes from 32-bit ASNs in the Routing Table: 167172 Number of bogon 32-bit ASNs visible in the Routing Table: 18 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 549 Number of addresses announced to Internet: 3062811136 Equivalent to 182 /8s, 142 /16s and 202 /24s Percentage of available address space announced: 82.7 Percentage of allocated address space announced: 82.7 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: 304938 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 234977 Total APNIC prefixes after maximum aggregation: 68270 APNIC Deaggregation factor: 3.44 Prefixes being announced from the APNIC address blocks: 229684 Unique aggregates announced from the APNIC address blocks: 97805 APNIC Region origin ASes present in the Internet Routing Table: 13250 APNIC Prefixes per ASN: 17.33 APNIC Region origin ASes announcing only one prefix: 3854 APNIC Region transit ASes present in the Internet Routing Table: 1777 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 25 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8588 Number of APNIC addresses announced to Internet: 773150208 Equivalent to 46 /8s, 21 /16s and 86 /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, 131072-151865 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: 266664 Total ARIN prefixes after maximum aggregation: 121421 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 268679 Unique aggregates announced from the ARIN address blocks: 130226 ARIN Region origin ASes present in the Internet Routing Table: 19003 ARIN Prefixes per ASN: 14.14 ARIN Region origin ASes announcing only one prefix: 6965 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: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4727 Number of ARIN addresses announced to Internet: 1286352896 Equivalent to 76 /8s, 172 /16s and 48 /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, 393216-401308 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, 47/8, 48/8, 50/8, 52/8, 53/8, 54/8, 55/8, 56/8, 57/8, 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: 257426 Total RIPE prefixes after maximum aggregation: 121151 RIPE Deaggregation factor: 2.12 Prefixes being announced from the RIPE address blocks: 253788 Unique aggregates announced from the RIPE address blocks: 156638 RIPE Region origin ASes present in the Internet Routing Table: 28226 RIPE Prefixes per ASN: 8.99 RIPE Region origin ASes announcing only one prefix: 12024 RIPE Region transit ASes present in the Internet Routing Table: 3978 Average RIPE Region AS path length visible: 4.7 Max RIPE Region AS path length visible: 38 Number of RIPE region 32-bit ASNs visible in the Routing Table: 11032 Number of RIPE addresses announced to Internet: 718423296 Equivalent to 42 /8s, 210 /16s and 69 /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 196608-213403 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 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: 117266 Total LACNIC prefixes after maximum aggregation: 28203 LACNIC Deaggregation factor: 4.16 Prefixes being announced from the LACNIC address blocks: 116510 Unique aggregates announced from the LACNIC address blocks: 48801 LACNIC Region origin ASes present in the Internet Routing Table: 10976 LACNIC Prefixes per ASN: 10.61 LACNIC Region origin ASes announcing only one prefix: 2672 LACNIC Region transit ASes present in the Internet Routing Table: 2271 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 48 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8778 Number of LACNIC addresses announced to Internet: 176500480 Equivalent to 10 /8s, 133 /16s and 47 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-273820 + 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: 29290 Total AfriNIC prefixes after maximum aggregation: 5784 AfriNIC Deaggregation factor: 5.06 Prefixes being announced from the AfriNIC address blocks: 37446 Unique aggregates announced from the AfriNIC address blocks: 12140 AfriNIC Region origin ASes present in the Internet Routing Table: 1720 AfriNIC Prefixes per ASN: 21.77 AfriNIC Region origin ASes announcing only one prefix: 592 AfriNIC Region transit ASes present in the Internet Routing Table: 335 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 66 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1068 Number of AfriNIC addresses announced to Internet: 108051712 Equivalent to 6 /8s, 112 /16s and 189 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 45/8, 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 9456 8883 49 CHINAMOBILE-CN China Mobile Communicati 7545 5805 786 691 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3666 1331 21 VIETEL-AS-AP Viettel Group, VN 7713 3548 1043 65 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3375 1872 94 VNPT-AS-VN VNPT Corp, VN 9498 2790 499 238 BBIL-AP BHARTI Airtel Ltd., IN 24560 2357 836 443 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2299 11250 586 KIXS-AS-KR Korea Telecom, KR 4755 2161 440 212 TATACOMM-AS TATA Communications formerl 45090 2148 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute 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 8005 10749 2871 AMAZON-02, US 11492 4504 298 647 CABLEONE, US 7155 3955 270 43 VIASAT-SP-BACKBONE, US 22773 3643 3063 283 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3504 1320 64 SHAW, CA 16625 3294 1649 2419 AKAMAI-AS, US 749 3034 50571 2301 DNIC-AS-00749, US 396982 2618 3586 354 GOOGLE-CLOUD-PLATFORM, US 7018 2588 24139 1580 ATT-INTERNET4, US 30036 2534 363 422 MEDIACOM-ENTERPRISE-BUSINESS, US 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 7083 1706 146 UNI2-AS, ES 39891 4561 269 58 ALJAWWALSTC-AS, SA 20940 4038 3399 167 AKAMAI-ASN1, NL 8551 3901 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2897 2292 911 ROSTELECOM-AS, RU 9009 2670 253 1388 M247, RO 34984 2264 359 608 TELLCOM-AS, TR 6849 2164 339 19 UKRTELNET, UA 58224 1846 949 546 TCI, IR 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 11175 3346 585 Uninet S.A. de C.V., MX 10620 3467 504 872 Telmex Colombia S.A., CO 11830 2264 369 65 Instituto Costarricense de Electricidad 13999 2259 370 603 Mega Cable, S.A. de C.V., MX 28573 1342 2324 256 Claro NXT Telecomunicacoes Ltda, BR 6503 1298 339 518 Axtel, S.A.B. de C.V., MX 3816 1292 746 156 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 1134 370 22 Telefonica del Peru S.A.A., PE 11664 1099 180 457 Techtel LMDS Comunicaciones Interactiva 26615 1025 2498 45 TIM SA, 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 1540 533 30 RAYA-AS, EG 24863 1487 393 19 LINKdotNET-AS, EG 36992 1346 1517 278 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1002 67 53 ORANGE-COTE-IVOIRE, CI 36935 886 520 42 Vodafone-, EG 6713 551 1861 34 IAM-AS, MA 15399 527 54 46 WANANCHI-, KE 24757 498 73 5 EthioNet-AS, ET 37342 493 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 8151 11175 3346 585 Uninet S.A. de C.V., MX 9808 9456 8883 49 CHINAMOBILE-CN China Mobile Communicati 16509 8005 10749 2871 AMAZON-02, US 12479 7083 1706 146 UNI2-AS, ES 7545 5805 786 691 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4561 269 58 ALJAWWALSTC-AS, SA 11492 4504 298 647 CABLEONE, US 20940 4038 3399 167 AKAMAI-ASN1, NL 7155 3955 270 43 VIASAT-SP-BACKBONE, US 8551 3901 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 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 9456 9407 CHINAMOBILE-CN China Mobile Communications Grou 12479 7083 6937 UNI2-AS, ES 16509 8005 5134 AMAZON-02, US 7545 5805 5114 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4561 4503 ALJAWWALSTC-AS, SA 7155 3955 3912 VIASAT-SP-BACKBONE, US 20940 4038 3871 AKAMAI-ASN1, NL 8551 3901 3864 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 11492 4504 3857 CABLEONE, US 7552 3666 3645 VIETEL-AS-AP Viettel Group, VN 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 3507 UNALLOCATED 5.105.166.0/24 213035 AS-SERVERION Serverion B.V., 33123 UNALLOCATED 8.10.69.0/24 11168 SCC, US 16641 UNALLOCATED 8.10.194.0/24 3356 LEVEL3, US 16641 UNALLOCATED 8.10.210.0/24 3356 LEVEL3, US 16641 UNALLOCATED 8.12.250.0/24 3356 LEVEL3, US 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-DDOS-M 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US 1618 UNALLOCATED 8.21.143.0/24 136796 CL-JP-AS CORELINK JAPAN, JP 393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.131.185.0/24 Origin: 174 COGENT-174, US 23.131.185.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.186.0/24 Origin: 174 COGENT-174, US 23.131.186.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.187.0/24 Origin: 174 COGENT-174, US 23.131.187.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.188.0/24 Origin: 174 COGENT-174, US 23.131.188.0/24 Transit: 2914 NTT-LTD-2914, US 23.136.112.0/24 Origin: 54835 UNASSIGNED 23.136.112.0/24 Transit: 21559 OSNET, PR 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 /9:13 /10:38 /11:103 /12:299 /13:577 /14:1200 /15:2073 /16:13434 /17:8199 /18:13724 /19:24807 /20:42937 /21:50953 /22:109007 /23:96838 /24:542429 /25:0 /26:1 /27:1 /28:0 /29:1 /30:6 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 6139 7083 UNI2-AS, ES 8151 5185 11175 Uninet S.A. de C.V., MX 39891 3552 4561 ALJAWWALSTC-AS, SA 11492 3421 4504 CABLEONE, US 8551 3373 3901 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3312 3504 SHAW, CA 7155 3032 3955 VIASAT-SP-BACKBONE, US 22773 2698 3643 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2191 2534 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2022 3467 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) ---------------------------------------------- 1:1653 2:1231 3:169 4:5 5:4337 6:116 7:6 8:1515 9:1 11:172 12:1584 13:389 14:2345 15:291 16:111 17:366 18:395 20:249 21:4 22:188 23:6066 24:2479 25:4 27:2521 29:19 31:2513 32:107 34:8 35:104 36:1927 37:4604 38:4205 39:863 40:152 41:4050 42:1081 43:2305 44:304 45:16356 46:4164 47:375 49:1734 50:1820 51:386 52:1581 54:397 55:869 56:8 57:89 58:1667 59:1115 60:982 61:2460 62:2626 63:1941 64:5638 65:2319 66:4903 67:3031 68:1352 69:4131 70:1272 71:662 72:2972 74:2590 75:1458 76:598 77:2393 78:1840 79:3174 80:2072 81:1734 82:1499 83:1235 84:1516 85:2992 86:756 87:1969 88:1231 89:3612 90:612 91:7667 92:2020 93:2581 94:3511 95:3955 96:1335 97:348 98:1163 99:744 100:75 101:1297 102:2646 103:30996 104:4587 105:485 106:847 107:2545 108:914 109:4394 110:2088 111:3282 112:2027 113:1490 114:1619 115:2012 116:1887 117:2556 118:2283 119:1939 120:1743 121:1046 122:2592 123:2137 124:1544 125:2349 128:1260 129:1058 130:987 131:1997 132:824 133:413 134:1904 135:294 136:861 137:937 138:2565 139:1545 140:1190 141:1472 142:1417 143:1478 144:1207 145:351 146:1888 147:1552 148:2279 149:1910 150:870 151:1148 152:1956 153:487 154:4180 155:1427 156:1671 157:1298 158:1010 159:2260 160:2554 161:1438 162:3544 163:1489 164:1583 165:1686 166:845 167:1732 168:3781 169:924 170:4551 171:883 172:3502 173:2960 174:1035 175:1159 176:3718 177:4580 178:3619 179:2201 180:2417 181:3408 182:3390 183:1935 184:2355 185:20092 186:4643 187:3957 188:4126 189:3565 190:9095 191:1457 192:10936 193:8822 194:7226 195:5112 196:3144 197:2247 198:5899 199:6095 200:7660 201:5869 202:10229 203:9995 204:4602 205:3515 206:3818 207:3383 208:4071 209:4836 210:4189 211:2385 212:4095 213:3550 214:1088 215:55 216:6586 217:2646 218:1265 219:400 220:1766 221:971 222:671 223:2109 End of report