This is an automated weekly mailing describing the state of the IPv4 Research & Education Routing Table received by NSRC's collector from Guam's network. Daily listings are sent to ren-bgp-stats-all@lists.nsrc.org. For historical data, please see https://bgp.nsrc.org. If you have any comments please contact Philip Smith . IPv4 R&E Routing Table Report 21:25 GMT Sat 18 Oct, 2025 IPv4 BGP Table (Global) as seen at Guam. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Guam/ Analysis Summary ---------------- BGP routing table entries examined: 1051119 Prefixes after maximum aggregation (per Origin AS): 396578 Deaggregation factor: 2.65 Unique aggregates announced (without unneeded subnets): 498392 Number of IPv4 prefixes with a valid ROA: 605089 Number of IPv4 prefixes with an invalid ROA: 19 Number of IPv4 prefixes with no ROA: 446011 Total ASes present in the Internet Routing Table: 77611 Prefixes per ASN: 13.54 Origin-only ASes present in the Internet Routing Table: 66416 Origin ASes announcing only one prefix: 26695 Transit ASes present in the Internet Routing Table: 11195 Transit-only ASes present in the Internet Routing Table: 572 Paths with bogon ASNs present in the IPv4 Routing Table: 130 Average AS path length visible in the Internet Routing Table: 5.4 Max AS path length visible: 56 Max AS path prepend of ASN (135823) 50 Prefixes from unregistered ASNs in the Routing Table: 960 Number of instances of unregistered ASNs: 1026 Number of 32-bit ASNs allocated by the RIRs: 47753 Number of 32-bit ASNs visible in the Routing Table: 39210 Prefixes from 32-bit ASNs in the Routing Table: 221993 Number of bogon 32-bit ASNs visible in the Routing Table: 150 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 314 Number of addresses announced to Internet: 3117784897 Equivalent to 185 /8s, 213 /16s and 159 /24s Percentage of available address space announced: 84.2 Percentage of allocated address space announced: 84.2 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: 346532 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 283323 Total APNIC prefixes after maximum aggregation: 81166 APNIC Deaggregation factor: 3.49 Prefixes being announced from the APNIC address blocks: 272986 Unique aggregates announced from the APNIC address blocks: 106367 APNIC Region origin ASes present in the Internet Routing Table: 14940 APNIC Prefixes per ASN: 18.27 APNIC Region origin ASes announcing only one prefix: 4514 APNIC Region transit ASes present in the Internet Routing Table: 2009 Average APNIC Region AS path length visible: 5.3 Max APNIC Region AS path length visible: 56 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10427 Number of APNIC addresses announced to Internet: 757054016 Equivalent to 45 /8s, 31 /16s and 186 /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: 303615 Total ARIN prefixes after maximum aggregation: 134810 ARIN Deaggregation factor: 2.25 Prefixes being announced from the ARIN address blocks: 304419 Unique aggregates announced from the ARIN address blocks: 144563 ARIN Region origin ASes present in the Internet Routing Table: 19359 ARIN Prefixes per ASN: 15.72 ARIN Region origin ASes announcing only one prefix: 7094 ARIN Region transit ASes present in the Internet Routing Table: 2003 Average ARIN Region AS path length visible: 4.8 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5372 Number of ARIN addresses announced to Internet: 1352993024 Equivalent to 80 /8s, 165 /16s and 9 /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, 393216-402332 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: 292493 Total RIPE prefixes after maximum aggregation: 142553 RIPE Deaggregation factor: 2.05 Prefixes being announced from the RIPE address blocks: 292559 Unique aggregates announced from the RIPE address blocks: 181319 RIPE Region origin ASes present in the Internet Routing Table: 29138 RIPE Prefixes per ASN: 10.04 RIPE Region origin ASes announcing only one prefix: 12067 RIPE Region transit ASes present in the Internet Routing Table: 4045 Average RIPE Region AS path length visible: 5.7 Max RIPE Region AS path length visible: 52 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12797 Number of RIPE addresses announced to Internet: 733128705 Equivalent to 43 /8s, 178 /16s and 168 /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: 133726 Total LACNIC prefixes after maximum aggregation: 30432 LACNIC Deaggregation factor: 4.39 Prefixes being announced from the LACNIC address blocks: 129555 Unique aggregates announced from the LACNIC address blocks: 49360 LACNIC Region origin ASes present in the Internet Routing Table: 11314 LACNIC Prefixes per ASN: 11.45 LACNIC Region origin ASes announcing only one prefix: 2354 LACNIC Region transit ASes present in the Internet Routing Table: 2554 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 39 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9280 Number of LACNIC addresses announced to Internet: 170644992 Equivalent to 10 /8s, 43 /16s and 214 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-274844 + 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: 37002 Total AfriNIC prefixes after maximum aggregation: 6953 AfriNIC Deaggregation factor: 5.32 Prefixes being announced from the AfriNIC address blocks: 51286 Unique aggregates announced from the AfriNIC address blocks: 16497 AfriNIC Region origin ASes present in the Internet Routing Table: 1969 AfriNIC Prefixes per ASN: 26.05 AfriNIC Region origin ASes announcing only one prefix: 666 AfriNIC Region transit ASes present in the Internet Routing Table: 384 Average AfriNIC Region AS path length visible: 6.1 Max AfriNIC Region AS path length visible: 42 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1334 Number of AfriNIC addresses announced to Internet: 103770624 Equivalent to 6 /8s, 47 /16s and 106 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & 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 13986 8889 174 CHINAMOBILE-CN China Mobile Communication 7545 6169 834 590 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4874 4192 75 ERX-CERNET-BKB China Education and Resear 9498 4477 536 312 BBIL-AP BHARTI Airtel Ltd., IN 45899 4396 1874 54 VNPT-AS-VN VNPT Corp, VN 18403 4352 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 4008 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3688 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3307 848 233 CMNET-JIANGSU-AP China Mobile communicati 24560 2931 863 502 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14384 41089 5396 AMAZON-02, US 11492 4771 322 787 CABLEONE, US 174 4640 8766 795 COGENT-174, US 22773 4300 3069 360 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3873 287 89 VIASAT-SP-BACKBONE, US 6327 3685 1320 82 SHAW, CA 396982 3272 4825 465 GOOGLE-CLOUD-PLATFORM, US 749 3218 54766 2469 DNIC-AS-00749, US 4155 3118 241 1743 USDA-1, US 16625 2924 1248 2177 AKAMAI-AS, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7382 1711 149 UNI2-AS, ES 47331 5126 717 3409 TTNET, TR 39891 4833 298 66 ALJAWWALSTC-AS, SA 9009 3952 372 2240 M247, RO 20940 3949 3395 139 AKAMAI-ASN1, NL 12389 3146 2313 866 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2541 182 1848 CDNEXT, GB 34984 2415 363 576 TELLCOM-AS, TR 5384 2396 585 28 EMIRATES-INTERNET Emirates Internet, AE 203020 1718 205 1005 HOSTROYALE, IN Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 12421 3260 587 UNINET, MX 10620 3479 468 1087 Telmex Colombia S.A., CO 13999 2517 511 347 Mega Cable, S.A. de C.V., MX 11830 1988 369 64 Instituto Costarricense de Electricidad y 28573 1376 2435 257 Claro NXT Telecomunicacoes Ltda, BR 3816 1354 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1272 371 23 Telefonica del Peru S.A.A., PE 11664 1251 278 31 Techtel LMDS Comunicaciones Interactivas 22884 1062 68 365 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1014 2486 56 TIM SA, BR Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1843 630 32 RAYA-AS, EG 36992 1513 1498 386 ETISALAT-MISR, EG 24863 1250 389 20 LINKdotNET-AS, EG 36903 1250 554 97 MT-MPLS, MA 29571 1188 102 52 ORANGE-COTE-IVOIRE, CI 36935 1119 523 47 Vodafone-, EG 37069 1085 1096 13 MOBINIL, EG 20011 634 172 254 NTT-DATA-Inc, ZA 36914 573 82 3 KENET-AS, KE 3741 564 725 318 NTT-DATA-Inc, ZA Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14384 41089 5396 AMAZON-02, US 9808 13986 8889 174 CHINAMOBILE-CN China Mobile Communication 8151 12421 3260 587 UNINET, MX 12479 7382 1711 149 UNI2-AS, ES 7545 6169 834 590 TPG-INTERNET-AP TPG Telecom Limited, AU 47331 5126 717 3409 TTNET, TR 4538 4874 4192 75 ERX-CERNET-BKB China Education and Resear 39891 4833 298 66 ALJAWWALSTC-AS, SA 11492 4771 322 787 CABLEONE, US 174 4640 8766 795 COGENT-174, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 13986 13812 CHINAMOBILE-CN China Mobile Communications Grou 8151 12421 11834 UNINET, MX 12479 7382 7233 UNI2-AS, ES 7545 6169 5579 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4874 4799 ERX-CERNET-BKB China Education and Research Net 39891 4833 4767 ALJAWWALSTC-AS, SA 45899 4396 4342 VNPT-AS-VN VNPT Corp, VN 18403 4352 4327 FPT-AS-AP FPT Telecom Company, VN 9498 4477 4165 BBIL-AP BHARTI Airtel Ltd., IN 11492 4771 3984 CABLEONE, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887, US 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 54338 UNALLOCATED 8.33.241.0/24 3356 LEVEL3, US 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 54739 UNALLOCATED 8.44.198.0/23 13335 CLOUDFLARENET, US 397015 UNALLOCATED 8.44.246.0/24 12025 IMDC-AS12025, US 13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 6939 HURRICANE, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.135.216.0/24 Origin: 400565 RESERVED, ZZ 23.135.216.0/24 Transit: 3356 LEVEL3, US 23.140.216.0/24 Origin: 27176 DATAWAGON, US 23.140.216.0/24 Transit: 20278 NEXEON, US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS, US 23.147.240.0/24 Origin: 32302 RESERVED, ZZ 23.147.240.0/24 Transit: 32787 PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NE Complete listing at https://bgp.nsrc.org/REN/Guam/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 /10:41 /11:93 /12:301 /13:584 /14:1209 /15:2149 /16:13941 /17:8497 /18:14377 /19:25641 /20:46729 /21:54657 /22:116282 /23:111858 /24:653969 /25:151 /26:110 /27:114 /28:21 /29:66 /30:12 /31:3 /32:284 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 6622 12421 UNINET, MX 12479 6350 7382 UNI2-AS, ES 47331 4557 5126 TTNET, TR 11492 3584 4771 CABLEONE, US 39891 3521 4833 ALJAWWALSTC-AS, SA 6327 3473 3685 SHAW, CA 7155 2831 3873 VIASAT-SP-BACKBONE, US 22773 2649 4300 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2415 14384 AMAZON-02, US 30036 2307 2647 MEDIACOM-ENTERPRISE-BUSINESS, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2487 2:1627 3:946 4:12 5:5219 6:170 7:6 8:1558 9:6 11:172 12:1242 13:557 14:2721 15:403 16:300 17:391 18:909 20:601 21:4 22:188 23:8078 24:2667 25:2 27:2863 29:19 31:3474 32:39 33:1 34:85 35:276 36:4502 37:4649 38:10704 39:1116 40:473 41:4454 42:1961 43:2918 44:405 45:20046 46:5332 47:389 49:2121 50:2058 51:596 52:1664 54:353 55:1093 56:11 57:289 58:2396 59:1395 60:1219 61:3181 62:3108 63:1776 64:5880 65:2125 66:5625 67:3177 68:1491 69:4258 70:1052 71:634 72:3020 74:2868 75:1524 76:593 77:2874 78:3086 79:1779 80:2288 81:2241 82:3529 83:1541 84:2013 85:3980 86:1198 87:2415 88:2448 89:4565 90:816 91:8488 92:2886 93:3012 94:4298 95:5147 96:1526 97:312 98:949 99:754 100:71 101:1505 102:4644 103:32882 104:5474 105:1050 106:913 107:2814 108:1217 109:4321 110:2301 111:3891 112:2743 113:1906 114:2098 115:2399 116:2169 117:3087 118:3078 119:2117 120:2363 121:1568 122:2963 123:2498 124:1822 125:2939 126:125 128:1646 129:982 130:1451 131:2270 132:846 133:461 134:1633 135:408 136:1500 137:1282 138:3019 139:1675 140:1662 141:1567 142:2209 143:2173 144:1302 145:635 146:2198 147:2160 148:2758 149:3022 150:1303 151:2648 152:2232 153:642 154:8163 155:2221 156:3210 157:2011 158:1452 159:2612 160:3687 161:2047 162:3982 163:2316 164:1981 165:2607 166:1567 167:2140 168:4034 169:794 170:5669 171:1077 172:4488 173:3454 174:907 175:1384 176:3885 177:5377 178:4434 179:2483 180:2819 181:4425 182:3780 183:2560 184:2121 185:21916 186:5715 187:4971 188:4530 189:4609 190:9897 191:1669 192:11467 193:9544 194:8031 195:5834 196:3435 197:3407 198:6166 199:8826 200:8605 201:6548 202:11084 203:10917 204:4626 205:3665 206:4496 207:3767 208:4279 209:5405 210:5138 211:2915 212:4966 213:3990 214:1028 215:52 216:7137 217:3511 218:1644 219:628 220:2207 221:1255 222:1005 223:3131 End of report