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 21 Mar, 2026 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: 1069727 Prefixes after maximum aggregation (per Origin AS): 400364 Deaggregation factor: 2.67 Unique aggregates announced (without unneeded subnets): 512084 Number of IPv4 prefixes with a valid ROA: 640769 Number of IPv4 prefixes with an invalid ROA: 19 Number of IPv4 prefixes with no ROA: 428939 Total ASes present in the Internet Routing Table: 78297 Prefixes per ASN: 13.66 Origin-only ASes present in the Internet Routing Table: 66969 Origin ASes announcing only one prefix: 26942 Transit ASes present in the Internet Routing Table: 11328 Transit-only ASes present in the Internet Routing Table: 586 Paths with bogon ASNs present in the IPv4 Routing Table: 46 Average AS path length visible in the Internet Routing Table: 5.4 Max AS path length visible: 250 Max AS path prepend of ASN ( 17210) 245 Prefixes from unregistered ASNs in the Routing Table: 1075 Number of instances of unregistered ASNs: 1105 Number of 32-bit ASNs allocated by the RIRs: 49047 Number of 32-bit ASNs visible in the Routing Table: 40222 Prefixes from 32-bit ASNs in the Routing Table: 233634 Number of bogon 32-bit ASNs visible in the Routing Table: 78 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 301 Number of addresses announced to Internet: 3113031520 Equivalent to 185 /8s, 141 /16s and 23 /24s Percentage of available address space announced: 84.1 Percentage of allocated address space announced: 84.1 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: 349473 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 293877 Total APNIC prefixes after maximum aggregation: 83164 APNIC Deaggregation factor: 3.53 Prefixes being announced from the APNIC address blocks: 281232 Unique aggregates announced from the APNIC address blocks: 107169 APNIC Region origin ASes present in the Internet Routing Table: 15219 APNIC Prefixes per ASN: 18.48 APNIC Region origin ASes announcing only one prefix: 4642 APNIC Region transit ASes present in the Internet Routing Table: 2061 Average APNIC Region AS path length visible: 5.4 Max APNIC Region AS path length visible: 54 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10731 Number of APNIC addresses announced to Internet: 757046592 Equivalent to 45 /8s, 31 /16s and 157 /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: 307405 Total ARIN prefixes after maximum aggregation: 137243 ARIN Deaggregation factor: 2.24 Prefixes being announced from the ARIN address blocks: 305797 Unique aggregates announced from the ARIN address blocks: 147081 ARIN Region origin ASes present in the Internet Routing Table: 19428 ARIN Prefixes per ASN: 15.74 ARIN Region origin ASes announcing only one prefix: 7088 ARIN Region transit ASes present in the Internet Routing Table: 2000 Average ARIN Region AS path length visible: 4.9 Max ARIN Region AS path length visible: 250 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5533 Number of ARIN addresses announced to Internet: 1349376000 Equivalent to 80 /8s, 109 /16s and 216 /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: 288897 Total RIPE prefixes after maximum aggregation: 141429 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 291654 Unique aggregates announced from the RIPE address blocks: 187921 RIPE Region origin ASes present in the Internet Routing Table: 29363 RIPE Prefixes per ASN: 9.93 RIPE Region origin ASes announcing only one prefix: 12136 RIPE Region transit ASes present in the Internet Routing Table: 4082 Average RIPE Region AS path length visible: 5.7 Max RIPE Region AS path length visible: 30 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13199 Number of RIPE addresses announced to Internet: 732604032 Equivalent to 43 /8s, 170 /16s and 166 /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: 137272 Total LACNIC prefixes after maximum aggregation: 30728 LACNIC Deaggregation factor: 4.47 Prefixes being announced from the LACNIC address blocks: 132770 Unique aggregates announced from the LACNIC address blocks: 50265 LACNIC Region origin ASes present in the Internet Routing Table: 11374 LACNIC Prefixes per ASN: 11.67 LACNIC Region origin ASes announcing only one prefix: 2407 LACNIC Region transit ASes present in the Internet Routing Table: 2593 Average LACNIC Region AS path length visible: 5.9 Max LACNIC Region AS path length visible: 69 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9386 Number of LACNIC addresses announced to Internet: 170392480 Equivalent to 10 /8s, 39 /16s and 251 /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: 41201 Total AfriNIC prefixes after maximum aggregation: 7115 AfriNIC Deaggregation factor: 5.79 Prefixes being announced from the AfriNIC address blocks: 57973 Unique aggregates announced from the AfriNIC address blocks: 19383 AfriNIC Region origin ASes present in the Internet Routing Table: 2009 AfriNIC Prefixes per ASN: 28.86 AfriNIC Region origin ASes announcing only one prefix: 669 AfriNIC Region transit ASes present in the Internet Routing Table: 391 Average AfriNIC Region AS path length visible: 6.2 Max AfriNIC Region AS path length visible: 63 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1373 Number of AfriNIC addresses announced to Internet: 103385600 Equivalent to 6 /8s, 41 /16s and 138 /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 13951 9093 161 CHINAMOBILE-CN China Mobile Communication 7545 5933 829 508 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4970 4192 76 ERX-CERNET-BKB China Education and Resear 9498 4850 548 322 BBIL-AP BHARTI Airtel Ltd., IN 18403 4556 347 25 FPT-AS-AP FPT Telecom Company, VN 45899 4424 1873 53 VNPT-AS-VN VNPT Corp, VN 7552 4032 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3676 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3625 909 231 CMNET-JIANGSU-AP China Mobile communicati 24560 3006 862 511 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 14518 41222 5586 AMAZON-02 - Amazon.com, Inc., US 174 4897 8764 839 COGENT-174 - Cogent Communications, LLC, 22773 4765 3101 366 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4647 308 1020 CABLEONE - CABLE ONE, INC., US 7155 3861 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3711 1321 75 SHAW - Shaw Communications, CA 396982 3290 4856 484 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3141 54728 2392 DNIC-AS-00749 - United States Department 16625 2719 1192 2108 AKAMAI-AS - Akamai Technologies, Inc., US 36352 2704 222 888 AS-COLOCROSSING - HostPapa, 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 7203 1711 149 UNI2-AS, ES 39891 4969 306 72 ALJAWWALSTC-AS, SA 20940 3845 3389 112 AKAMAI-ASN1, NL 9009 3829 355 2250 M247, RO 12389 3183 2320 872 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2677 193 1960 CDNEXT, GB 34984 2462 366 570 TELLCOM-AS, TR 8452 1704 1852 17 TE-AS TE-AS, EG 203020 1630 247 806 HOSTROYALE, IN 13188 1607 100 27 TRIOLAN, UA 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 12826 3302 595 UNINET, MX 10620 3452 457 1103 Telmex Colombia S.A., CO 13999 2460 506 344 Mega Cable, S.A. de C.V., MX 11830 1957 369 65 Instituto Costarricense de Electricidad y 28573 1584 2430 272 Claro NXT Telecomunicacoes Ltda, BR 11664 1451 278 33 Techtel LMDS Comunicaciones Interactivas 3816 1341 770 214 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1244 371 22 INTEGRATEL PERU S.A.A., PE 22884 1057 67 358 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1057 2475 94 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 2045 648 34 RAYA-AS, EG 36992 1843 1531 336 ETISALAT-MISR, EG 37457 1659 385 28 Telkom-Internet, ZA 20011 1338 206 349 NTT-DATA-Inc, ZA 24863 1286 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 36935 1229 521 44 Vodafone-, EG 37069 1108 1100 11 MOBINIL, EG 29571 1072 78 20 ORANGE-COTE-IVOIRE, CI 3741 554 724 321 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 14518 41222 5586 AMAZON-02 - Amazon.com, Inc., US 9808 13951 9093 161 CHINAMOBILE-CN China Mobile Communication 8151 12826 3302 595 UNINET, MX 12479 7203 1711 149 UNI2-AS, ES 7545 5933 829 508 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4970 4192 76 ERX-CERNET-BKB China Education and Resear 39891 4969 306 72 ALJAWWALSTC-AS, SA 174 4897 8764 839 COGENT-174 - Cogent Communications, LLC, 9498 4850 548 322 BBIL-AP BHARTI Airtel Ltd., IN 22773 4765 3101 366 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 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 13951 13790 CHINAMOBILE-CN China Mobile Communications Grou 8151 12826 12231 UNINET, MX 12479 7203 7054 UNI2-AS, ES 7545 5933 5425 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 4897 ALJAWWALSTC-AS, SA 4538 4970 4894 ERX-CERNET-BKB China Education and Research Net 18403 4556 4531 FPT-AS-AP FPT Telecom Company, VN 9498 4850 4528 BBIL-AP BHARTI Airtel Ltd., IN 22773 4765 4399 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 45899 4424 4371 VNPT-AS-VN VNPT Corp, VN 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 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887 - C 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 33491 COMCAST-33491 - Comcast 397665 UNALLOCATED 12.24.28.0/24 7018 ATT-INTERNET4 - AT&T En 395476 UNALLOCATED 12.36.194.0/24 7018 ATT-INTERNET4 - AT&T En 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 - Hurricane Electric LLC, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-spar 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: 3605 ERX-KUENTOS-AS Guam Cablevision, LLC., G 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/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 /10:40 /11:95 /12:298 /13:585 /14:1199 /15:2100 /16:13735 /17:8507 /18:13997 /19:26391 /20:47769 /21:53886 /22:115938 /23:113342 /24:671083 /25:75 /26:83 /27:116 /28:40 /29:65 /30:9 /31:3 /32:341 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 6986 12826 UNINET, MX 12479 6144 7203 UNI2-AS, ES 39891 3655 4969 ALJAWWALSTC-AS, SA 11492 3507 4647 CABLEONE - CABLE ONE, INC., US 6327 3491 3711 SHAW - Shaw Communications, CA 22773 3035 4765 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2820 3861 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2605 14518 AMAZON-02 - Amazon.com, Inc., US 30036 2318 2667 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2232 3452 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/Guam/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2555 2:1691 3:1005 4:7 5:5256 6:197 7:6 8:1537 9:37 11:172 12:1194 13:659 14:2745 15:459 16:169 17:426 18:920 20:620 21:4 22:188 23:8255 24:2842 25:2 27:2839 28:1 29:19 31:3473 32:40 34:91 35:295 36:4675 37:4512 38:11120 39:1276 40:412 41:4683 42:2257 43:3137 44:446 45:20830 46:4995 47:428 48:99 49:2249 50:2072 51:614 52:1305 54:279 55:1115 56:11 57:326 58:2577 59:1480 60:1183 61:3360 62:3181 63:1763 64:6270 65:2131 66:6035 67:3261 68:1500 69:4213 70:1049 71:623 72:3110 74:3020 75:1495 76:592 77:2900 78:1924 79:1818 80:2381 81:2234 82:4023 83:1453 84:2095 85:3825 86:1108 87:2467 88:1363 89:4738 90:799 91:8516 92:2845 93:3027 94:4423 95:4673 96:1440 97:314 98:947 99:803 100:68 101:1649 102:5159 103:32868 104:5475 105:2311 106:946 107:2855 108:1231 109:4272 110:2310 111:4175 112:3191 113:2097 114:2290 115:2363 116:2231 117:3525 118:3062 119:2189 120:2751 121:1637 122:3030 123:2462 124:1846 125:3047 126:125 128:1693 129:1016 130:1630 131:2587 132:814 133:477 134:1645 135:598 136:1588 137:1363 138:3422 139:1712 140:1800 141:1651 142:2547 143:2200 144:1760 145:626 146:2207 147:2160 148:2732 149:3123 150:1359 151:2721 152:2316 153:1030 154:9780 155:2332 156:4436 157:2304 158:1504 159:2804 160:3883 161:1960 162:4041 163:2463 164:2077 165:2669 166:1308 167:2273 168:4209 169:915 170:5803 171:1131 172:4602 173:3475 174:883 175:1411 176:3915 177:5718 178:4353 179:2593 180:3146 181:4619 182:4044 183:2847 184:2013 185:21996 186:6223 187:5365 188:4598 189:4695 190:10011 191:1970 192:11574 193:9645 194:7996 195:5940 196:3613 197:3901 198:6165 199:6116 200:8429 201:6579 202:11192 203:10910 204:4721 205:3734 206:4576 207:3883 208:4412 209:5444 210:5183 211:2937 212:5041 213:4152 214:1051 215:46 216:7269 217:3564 218:1997 219:653 220:2340 221:1331 222:1429 223:3445 End of report