Routing Table Report 00:00 GMT Mon 20 Feb, 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: 401996
Prefixes after maximum aggregation: 171412
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 192863
Total ASes present in the Internet Routing Table: 40171
Prefixes per ASN: 10.01
Origin-only ASes present in the Internet Routing Table: 32766
Origin ASes announcing only one prefix: 15536
Transit ASes present in the Internet Routing Table: 5422
Transit-only ASes present in the Internet Routing Table: 141
Average AS path length visible in the Internet Routing Table: 4.1
Max AS path length visible: 28
Max AS path prepend of ASN (56677) 25
Prefixes from unregistered ASNs in the Routing Table: 5180
Unregistered ASNs in the Routing Table: 148
Number of 32-bit ASNs allocated by the RIRs: 2284
Number of 32-bit ASNs visible in the Routing Table: 1983
Prefixes from 32-bit ASNs in the Routing Table: 4801
Special use prefixes present in the Routing Table: 87
Prefixes being announced from unallocated address space: 242
Number of addresses announced to Internet: 2516819165
Equivalent to 150 /8s, 3 /16s and 156 /24s
Percentage of available address space announced: 67.9
Percentage of allocated address space announced: 67.9
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.0
Total number of prefixes smaller than registry allocations: 169253
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 96408
Total APNIC prefixes after maximum aggregation: 30822
APNIC Deaggregation factor: 3.13
Prefixes being announced from the APNIC address blocks: 92802
Unique aggregates announced from the APNIC address blocks: 39258
APNIC Region origin ASes present in the Internet Routing Table: 4640
APNIC Prefixes per ASN: 20.00
APNIC Region origin ASes announcing only one prefix: 1248
APNIC Region transit ASes present in the Internet Routing Table: 750
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 149
Number of APNIC addresses announced to Internet: 636252160
Equivalent to 37 /8s, 236 /16s and 112 /24s
Percentage of available APNIC address space announced: 80.7
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: 151098
Total ARIN prefixes after maximum aggregation: 77540
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 122745
Unique aggregates announced from the ARIN address blocks: 49513
ARIN Region origin ASes present in the Internet Routing Table: 14925
ARIN Prefixes per ASN: 8.22
ARIN Region origin ASes announcing only one prefix: 5670
ARIN Region transit ASes present in the Internet Routing Table: 1557
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 23
Number of ARIN region 32-bit ASNs visible in the Routing Table: 15
Number of ARIN addresses announced to Internet: 805271560
Equivalent to 47 /8s, 255 /16s and 120 /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: 101368
Total RIPE prefixes after maximum aggregation: 52732
RIPE Deaggregation factor: 1.92
Prefixes being announced from the RIPE address blocks: 92274
Unique aggregates announced from the RIPE address blocks: 56148
RIPE Region origin ASes present in the Internet Routing Table: 16341
RIPE Prefixes per ASN: 5.65
RIPE Region origin ASes announcing only one prefix: 8011
RIPE Region transit ASes present in the Internet Routing Table: 2622
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 28
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1361
Number of RIPE addresses announced to Internet: 501300108
Equivalent to 29 /8s, 225 /16s and 59 /24s
Percentage of available RIPE address space announced: 80.8
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: 39132
Total LACNIC prefixes after maximum aggregation: 8118
LACNIC Deaggregation factor: 4.82
Prefixes being announced from the LACNIC address blocks: 38744
Unique aggregates announced from the LACNIC address blocks: 19524
LACNIC Region origin ASes present in the Internet Routing Table: 1572
LACNIC Prefixes per ASN: 24.65
LACNIC Region origin ASes announcing only one prefix: 445
LACNIC Region transit ASes present in the Internet Routing Table: 295
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 24
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 454
Number of LACNIC addresses announced to Internet: 96679688
Equivalent to 5 /8s, 195 /16s and 55 /24s
Percentage of available LACNIC address space announced: 64.0
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: 8961
Total AfriNIC prefixes after maximum aggregation: 2113
AfriNIC Deaggregation factor: 4.24
Prefixes being announced from the AfriNIC address blocks: 6985
Unique aggregates announced from the AfriNIC address blocks: 2177
AfriNIC Region origin ASes present in the Internet Routing Table: 516
AfriNIC Prefixes per ASN: 13.54
AfriNIC Region origin ASes announcing only one prefix: 162
AfriNIC Region transit ASes present in the Internet Routing Table: 120
Average AfriNIC Region AS path length visible: 4.1
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 30974976
Equivalent to 1 /8s, 216 /16s and 164 /24s
Percentage of available AfriNIC address space announced: 46.2
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 1915 11102 671 Korea Telecom (KIX)
17974 1732 501 36 PT TELEKOMUNIKASI INDONESIA
7545 1638 303 85 TPG Internet Pty Ltd
4755 1552 386 161 Videsh Sanchar Nigam Ltd. Aut
7552 1265 1064 7 Vietel Corporation
9829 1177 997 29 BSNL National Internet Backbo
9583 1124 84 482 Sify Limited
24560 1019 385 167 Bharti Airtel Ltd.
4808 977 1987 295 CNCGROUP IP network: China169
17488 949 161 224 Hathway IP Over Cable Interne
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 3439 3807 202 bellsouth.net, inc.
7029 3408 1018 160 Windstream Communications Inc
18566 2091 382 177 Covad Communications
1785 1870 680 126 AppliedTheory Corporation
20115 1627 1550 629 Charter Communications
4323 1602 1043 378 Time Warner Telecom
22773 1527 2910 110 Cox Communications, Inc.
30036 1405 251 748 Mediacom Communications Corp
19262 1387 4703 397 Verizon Global Networks
7018 1309 6996 849 AT&T WorldNet Services
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 1829 480 15 Corbina telecom
2118 1399 97 13 EUnet/RELCOM Autonomous Syste
15557 1098 2184 60 LDCOM NETWORKS
286 1049 806 197 KPNQwest Backbone AS
34984 652 188 172 Tellcom Iletisim Hizmetleri
6830 642 1926 411 UPC Distribution Services
20940 612 198 476 Akamai Technologies European
12479 604 643 54 Uni2 Autonomous System
8551 577 360 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 1744 323 172 TVCABLE BOGOTA
28573 1669 1085 65 Types of queries are: POCs, o
8151 1524 2989 348 Uninet S.A. de C.V.
7303 1264 758 183 Telecom Argentina Stet-France
26615 815 668 34 Types of queries are: POCs, o
27947 661 67 108 Telconet S.A
11172 632 107 74 Alestra
22047 581 322 17 Types of queries are: POCs, o
6503 560 418 67 AVANTEL, S.A.
3816 556 238 92 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 1231 958 13 TEDATA
24863 831 156 44 LINKdotNET AS number
6713 489 649 18 Itissalat Al-MAGHRIB
3741 278 939 229 The Internet Solution
33776 237 13 14 Starcomms Nigeria Limited
15706 222 32 6 Sudatel Internet Exchange Aut
29571 214 17 12 Ci Telecom Autonomous system
12258 197 28 62 YEBO-AS
24835 194 80 8 RAYA Telecom - Egypt
16637 160 664 85 Johnnic e-Ventures
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 3439 3807 202 bellsouth.net, inc.
7029 3408 1018 160 Windstream Communications Inc
18566 2091 382 177 Covad Communications
4766 1915 11102 671 Korea Telecom (KIX)
1785 1870 680 126 AppliedTheory Corporation
8402 1829 480 15 Corbina telecom
10620 1744 323 172 TVCABLE BOGOTA
17974 1732 501 36 PT TELEKOMUNIKASI INDONESIA
28573 1669 1085 65 Types of queries are: POCs, o
7545 1638 303 85 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 3408 3248 Windstream Communications Inc
18566 2091 1914 Covad Communications
8402 1829 1814 Corbina telecom
1785 1870 1744 AppliedTheory Corporation
17974 1732 1696 PT TELEKOMUNIKASI INDONESIA
28573 1669 1604 Types of queries are: POCs, o
10620 1744 1572 TVCABLE BOGOTA
7545 1638 1553 TPG Internet Pty Ltd
22773 1527 1417 Cox Communications, Inc.
4755 1552 1391 Videsh Sanchar Nigam Ltd. Aut
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
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 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic
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
23.27.0.0/16 18779 Guru.com
27.112.114.0/24 23884 Proimage Engineering and Comm
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 /8:19 /9:12 /10:27 /11:80 /12:231
/13:458 /14:818 /15:1505 /16:12295 /17:6484 /18:10735
/19:21021 /20:29575 /21:29692 /22:40285 /23:37557 /24:209567
/25:66 /26:82 /27:108 /28:280 /29:106 /30:525
/31:19 /32:449
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3063 3408 Windstream Communications Inc
6389 2108 3439 bellsouth.net, inc.
18566 2040 2091 Covad Communications
8402 1808 1829 Corbina telecom
10620 1641 1744 TVCABLE BOGOTA
30036 1356 1405 Mediacom Communications Corp
11492 1118 1155 Cable One
1785 1063 1870 AppliedTheory Corporation
15557 1045 1098 LDCOM NETWORKS
8452 1041 1231 TEDATA
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:511 2:785 4:18 5:1 6:3 8:388
12:1961 13:1 14:605 15:11 16:3 17:7
20:8 23:135 24:1740 27:1195 31:939 32:124
33:2 34:2 36:9 37:187 38:782 39:4
40:115 41:3137 42:97 43:1 44:3 46:1309
47:3 49:334 50:505 52:13 54:2 55:7
56:3 57:46 58:973 59:494 60:345 61:1204
62:959 63:2022 64:4154 65:2283 66:4475 67:2058
68:1358 69:3275 70:981 71:412 72:1823 73:1
74:2709 75:480 76:329 77:979 78:965 79:491
80:1217 81:885 82:630 83:526 84:594 85:1155
86:750 87:921 88:354 89:1571 90:282 91:4484
92:528 93:1368 94:1384 95:1106 96:422 97:312
98:793 99:38 100:4 101:272 103:819 106:65
107:157 108:174 109:1495 110:721 111:853 112:440
113:545 114:617 115:765 116:897 117:724 118:915
119:1261 120:366 121:708 122:1627 123:1085 124:1386
125:1326 128:538 129:193 130:217 131:575 132:166
133:21 134:236 135:62 136:215 137:182 138:288
139:157 140:487 141:263 142:396 143:404 144:511
145:69 146:485 147:247 148:768 149:282 150:158
151:198 152:447 153:170 154:7 155:414 156:213
157:370 158:160 159:512 160:320 161:245 162:342
163:187 164:531 165:409 166:559 167:458 168:763
169:148 170:837 171:114 172:4 173:1739 174:577
175:439 176:501 177:502 178:1276 180:1203 181:68
182:744 183:279 184:432 185:1 186:1974 187:863
188:1068 189:1179 190:5555 192:6011 193:5558 194:4366
195:3450 196:1291 197:166 198:3627 199:4403 200:5704
201:1745 202:8460 203:8687 204:4369 205:2439 206:2763
207:2784 208:4100 209:3584 210:2795 211:1494 212:2065
213:1853 214:851 215:92 216:5036 217:1493 218:554
219:340 220:1232 221:558 222:346 223:315
End of report