Routing Table Report 00:00 GMT Mon 02 Apr, 2012
NB: RouteViews data includes iBGP information from some ASNs.
Treat the information provided below appropriately.
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/rviews/
Analysis Summary
----------------
BGP routing table entries examined: 407186
Prefixes after maximum aggregation: 172948
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 195901
Total ASes present in the Internet Routing Table: 40594
Prefixes per ASN: 10.03
Origin-only ASes present in the Internet Routing Table: 32963
Origin ASes announcing only one prefix: 15513
Transit ASes present in the Internet Routing Table: 5460
Transit-only ASes present in the Internet Routing Table: 146
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 28
Max AS path prepend of ASN (19202) 25
Prefixes from unregistered ASNs in the Routing Table: 5976
Unregistered ASNs in the Routing Table: 299
Number of 32-bit ASNs allocated by the RIRs: 2342
Number of 32-bit ASNs visible in the Routing Table: 2171
Prefixes from 32-bit ASNs in the Routing Table: 5331
Special use prefixes present in the Routing Table: 87
Prefixes being announced from unallocated address space: 1289
Number of addresses announced to Internet: 2532061525
Equivalent to 150 /8s, 236 /16s and 49 /24s
Percentage of available address space announced: 68.3
Percentage of allocated address space announced: 68.3
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.1
Total number of prefixes smaller than registry allocations: 171581
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 96806
Total APNIC prefixes after maximum aggregation: 31040
APNIC Deaggregation factor: 3.12
Prefixes being announced from the APNIC address blocks: 93304
Unique aggregates announced from the APNIC address blocks: 39230
APNIC Region origin ASes present in the Internet Routing Table: 4664
APNIC Prefixes per ASN: 20.01
APNIC Region origin ASes announcing only one prefix: 1253
APNIC Region transit ASes present in the Internet Routing Table: 743
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 23
Number of APNIC region 32-bit ASNs visible in the Routing Table: 171
Number of APNIC addresses announced to Internet: 642384896
Equivalent to 38 /8s, 74 /16s and 4 /24s
Percentage of available APNIC address space announced: 81.5
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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, 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: 151794
Total ARIN prefixes after maximum aggregation: 77951
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 123121
Unique aggregates announced from the ARIN address blocks: 49929
ARIN Region origin ASes present in the Internet Routing Table: 14969
ARIN Prefixes per ASN: 8.23
ARIN Region origin ASes announcing only one prefix: 5698
ARIN Region transit ASes present in the Internet Routing Table: 1573
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 28
Number of ARIN region 32-bit ASNs visible in the Routing Table: 17
Number of ARIN addresses announced to Internet: 805267712
Equivalent to 47 /8s, 255 /16s and 105 /24s
Percentage of available ARIN address space announced: 64.0
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, 393216-394239
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,
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, 173/8,
174/8, 184/8, 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: 102911
Total RIPE prefixes after maximum aggregation: 53424
RIPE Deaggregation factor: 1.93
Prefixes being announced from the RIPE address blocks: 93295
Unique aggregates announced from the RIPE address blocks: 57242
RIPE Region origin ASes present in the Internet Routing Table: 16364
RIPE Prefixes per ASN: 5.70
RIPE Region origin ASes announcing only one prefix: 7962
RIPE Region transit ASes present in the Internet Routing Table: 2639
Average RIPE Region AS path length visible: 4.8
Max RIPE Region AS path length visible: 28
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1473
Number of RIPE addresses announced to Internet: 502367884
Equivalent to 29 /8s, 241 /16s and 134 /24s
Percentage of available RIPE address space announced: 80.9
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
196608-198655
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,
176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 40974
Total LACNIC prefixes after maximum aggregation: 8160
LACNIC Deaggregation factor: 5.02
Prefixes being announced from the LACNIC address blocks: 40490
Unique aggregates announced from the LACNIC address blocks: 19705
LACNIC Region origin ASes present in the Internet Routing Table: 1572
LACNIC Prefixes per ASN: 25.76
LACNIC Region origin ASes announcing only one prefix: 439
LACNIC Region transit ASes present in the Internet Routing Table: 298
Average LACNIC Region AS path length visible: 4.6
Max LACNIC Region AS path length visible: 25
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 505
Number of LACNIC addresses announced to Internet: 98735112
Equivalent to 5 /8s, 226 /16s and 148 /24s
Percentage of available LACNIC address space announced: 65.4
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 8886
Total AfriNIC prefixes after maximum aggregation: 2125
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 6947
Unique aggregates announced from the AfriNIC address blocks: 2164
AfriNIC Region origin ASes present in the Internet Routing Table: 521
AfriNIC Prefixes per ASN: 13.33
AfriNIC Region origin ASes announcing only one prefix: 161
AfriNIC Region transit ASes present in the Internet Routing Table: 116
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 31511808
Equivalent to 1 /8s, 224 /16s and 213 /24s
Percentage of available AfriNIC address space announced: 47.0
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1925 11101 676 Korea Telecom (KIX)
17974 1788 503 63 PT TELEKOMUNIKASI INDONESIA
7545 1652 301 88 TPG Internet Pty Ltd
4755 1574 386 158 Videsh Sanchar Nigam Ltd. Aut
9583 1241 95 543 Sify Limited
9829 1207 1025 29 BSNL National Internet Backbo
7552 1171 1062 11 Vietel Corporation
24560 1021 385 167 Bharti Airtel Ltd.
18101 950 131 160 Reliance Infocom Ltd Internet
4808 928 1875 270 CNCGROUP IP network: China169
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3378 3807 196 bellsouth.net, inc.
7029 3374 990 155 Windstream Communications Inc
18566 2092 383 179 Covad Communications
1785 1885 680 128 AppliedTheory Corporation
20115 1633 1559 624 Charter Communications
4323 1588 1074 376 Time Warner Telecom
22773 1552 2910 111 Cox Communications, Inc.
30036 1417 257 747 Mediacom Communications Corp
7018 1278 13742 829 AT&T WorldNet Services
11492 1184 216 364 Cable One
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8402 1801 544 16 Corbina telecom
2118 1394 97 14 EUnet/RELCOM Autonomous Syste
286 1065 853 198 KPNQwest Backbone AS
31148 677 37 9 FreeNet ISP
34984 673 188 174 Tellcom Iletisim Hizmetleri
12479 656 658 57 Uni2 Autonomous System
6830 642 1943 413 UPC Distribution Services
20940 635 205 497 Akamai Technologies European
8551 599 360 81 Bezeq International
9116 541 326 32 Goldenlines main autonomous s
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1820 331 131 TVCABLE BOGOTA
28573 1741 1105 60 Types of queries are: POCs, o
8151 1518 2999 324 Uninet S.A. de C.V.
6503 1512 418 66 AVANTEL, S.A.
7303 1353 827 189 Telecom Argentina Stet-France
26615 902 700 28 Types of queries are: POCs, o
27947 689 74 100 Telconet S.A
11172 636 91 73 Alestra
22047 584 326 15 Types of queries are: POCs, o
3816 569 242 101 COLOMBIA TELECOMUNICACIONES S
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 1296 958 13 TEDATA
24863 847 274 33 LINKdotNET AS number
6713 493 649 18 Itissalat Al-MAGHRIB
3741 272 924 229 The Internet Solution
12258 197 28 62 YEBO-AS
33776 182 12 21 Starcomms Nigeria Limited
24835 178 80 8 RAYA Telecom - Egypt
15706 168 32 6 Sudatel Internet Exchange Aut
16637 161 664 84 Johnnic e-Ventures
29571 159 15 16 Ci Telecom Autonomous system
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3378 3807 196 bellsouth.net, inc.
7029 3374 990 155 Windstream Communications Inc
18566 2092 383 179 Covad Communications
4766 1925 11101 676 Korea Telecom (KIX)
1785 1885 680 128 AppliedTheory Corporation
10620 1820 331 131 TVCABLE BOGOTA
8402 1801 544 16 Corbina telecom
17974 1788 503 63 PT TELEKOMUNIKASI INDONESIA
28573 1741 1105 60 Types of queries are: POCs, o
7545 1652 301 88 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 3374 3219 Windstream Communications Inc
18566 2092 1913 Covad Communications
8402 1801 1785 Corbina telecom
1785 1885 1757 AppliedTheory Corporation
17974 1788 1725 PT TELEKOMUNIKASI INDONESIA
10620 1820 1689 TVCABLE BOGOTA
28573 1741 1681 Types of queries are: POCs, o
7545 1652 1564 TPG Internet Pty Ltd
6503 1512 1446 AVANTEL, S.A.
22773 1552 1441 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
23456 UNALLOCATED 8.14.101.0/24 6461 AboveNet Communicati
54439 UNALLOCATED 8.25.174.0/24 17378 DBS International
54470 UNALLOCATED 8.30.171.0/24 3356 Level 3 Communicatio
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic
23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.103.0/24 209 Qwest
Complete listing at http://thyme.rand.apnic.net/rviews/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.29.245.1/32 286 KPNQwest Backbone AS
10.29.245.2/32 286 KPNQwest Backbone AS
10.29.245.15/32 286 KPNQwest Backbone AS
10.29.245.19/32 286 KPNQwest Backbone AS
10.29.245.20/32 286 KPNQwest Backbone AS
10.29.245.21/32 286 KPNQwest Backbone AS
10.29.245.22/32 286 KPNQwest Backbone AS
10.29.245.25/32 286 KPNQwest Backbone AS
10.29.245.26/32 286 KPNQwest Backbone AS
10.29.245.27/32 286 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
14.192.0.0/22 45464 Room 201, TGU Bldg
14.192.4.0/22 45464 Room 201, TGU Bldg
14.192.8.0/22 45464 Room 201, TGU Bldg
14.192.12.0/22 45464 Room 201, TGU Bldg
14.192.16.0/22 45464 Room 201, TGU Bldg
14.192.20.0/22 45464 Room 201, TGU Bldg
14.192.24.0/22 45464 Room 201, TGU Bldg
14.192.28.0/22 45464 Room 201, TGU Bldg
23.27.0.0/20 54500 EGIHosting
23.27.16.0/20 54500 EGIHosting
Complete listing at http://thyme.rand.apnic.net/rviews/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 /8:20 /9:12 /10:28 /11:81 /12:235
/13:457 /14:837 /15:1515 /16:12331 /17:6537 /18:10860
/19:21122 /20:29903 /21:30132 /22:40742 /23:38021 /24:212745
/25:69 /26:75 /27:110 /28:273 /29:100 /30:500
/31:20 /32:461
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3036 3374 Windstream Communications Inc
6389 2095 3378 bellsouth.net, inc.
18566 2041 2092 Covad Communications
8402 1778 1801 Corbina telecom
10620 1709 1820 TVCABLE BOGOTA
30036 1361 1417 Mediacom Communications Corp
6503 1272 1512 AVANTEL, S.A.
11492 1147 1184 Cable One
8452 1104 1296 TEDATA
1785 1064 1885 AppliedTheory Corporation
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:538 2:760 4:18 6:3 8:395 12:1991
13:1 14:604 15:12 16:3 17:7 20:8
23:160 24:1764 27:1258 31:966 32:120 33:2
34:2 36:8 37:321 38:793 39:4 40:120
41:3058 42:128 44:3 46:1463 47:3 49:347
50:538 52:13 54:6 55:10 56:3 57:39
58:966 59:496 60:278 61:1214 62:988 63:2013
64:4184 65:2265 66:4525 67:2060 68:1331 69:3288
70:956 71:466 72:1847 73:1 74:2631 75:505
76:329 77:963 78:1008 79:508 80:1215 81:905
82:679 83:550 84:520 85:1207 86:415 87:905
88:345 89:1631 90:297 91:4680 92:519 93:1401
94:1480 95:1162 96:380 97:316 98:831 99:37
100:7 101:172 103:929 106:66 107:180 108:222
109:1261 110:763 111:905 112:446 113:594 114:635
115:781 116:918 117:723 118:917 119:1211 120:343
121:720 122:1667 123:1109 124:1370 125:1264 128:560
129:195 130:259 131:585 132:173 133:21 134:244
135:63 136:212 137:176 138:352 139:156 140:373
141:244 142:387 143:397 144:505 145:66 146:485
147:253 148:800 149:298 150:154 151:176 152:460
153:172 154:7 155:445 156:215 157:381 158:176
159:524 160:343 161:248 162:343 163:189 164:555
165:406 166:562 167:464 168:818 169:148 170:844
171:125 172:4 173:1745 174:580 175:447 176:455
177:624 178:1312 180:1230 181:74 182:779 183:275
184:448 185:1 186:2168 187:1026 188:1186 189:1784
190:5562 192:6030 193:5627 194:4638 195:3633 196:1289
197:123 198:3621 199:4496 200:5824 201:1902 202:8482
203:8615 204:4348 205:2478 206:2773 207:2797 208:4074
209:3616 210:2785 211:1464 212:2041 213:1920 214:877
215:109 216:5089 217:1531 218:543 219:337 220:1237
221:556 222:333 223:329
End of report
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