Routing Table Report 00:00 GMT Sun 26 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: 402125
Prefixes after maximum aggregation: 171453
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 193700
Total ASes present in the Internet Routing Table: 40206
Prefixes per ASN: 10.00
Origin-only ASes present in the Internet Routing Table: 32886
Origin ASes announcing only one prefix: 15535
Transit ASes present in the Internet Routing Table: 5304
Transit-only ASes present in the Internet Routing Table: 132
Average AS path length visible in the Internet Routing Table: 3.9
Max AS path length visible: 28
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 5223
Unregistered ASNs in the Routing Table: 155
Number of 32-bit ASNs allocated by the RIRs: 2294
Number of 32-bit ASNs visible in the Routing Table: 2016
Prefixes from 32-bit ASNs in the Routing Table: 4846
Special use prefixes present in the Routing Table: 87
Prefixes being announced from unallocated address space: 315
Number of addresses announced to Internet: 2521785821
Equivalent to 150 /8s, 79 /16s and 101 /24s
Percentage of available address space announced: 68.0
Percentage of allocated address space announced: 68.0
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: 169420
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 96289
Total APNIC prefixes after maximum aggregation: 30676
APNIC Deaggregation factor: 3.14
Prefixes being announced from the APNIC address blocks: 92689
Unique aggregates announced from the APNIC address blocks: 39286
APNIC Region origin ASes present in the Internet Routing Table: 4637
APNIC Prefixes per ASN: 19.99
APNIC Region origin ASes announcing only one prefix: 1238
APNIC Region transit ASes present in the Internet Routing Table: 740
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 152
Number of APNIC addresses announced to Internet: 640054528
Equivalent to 38 /8s, 38 /16s and 117 /24s
Percentage of available APNIC address space announced: 81.2
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: 151164
Total ARIN prefixes after maximum aggregation: 77595
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 122728
Unique aggregates announced from the ARIN address blocks: 49604
ARIN Region origin ASes present in the Internet Routing Table: 14931
ARIN Prefixes per ASN: 8.22
ARIN Region origin ASes announcing only one prefix: 5675
ARIN Region transit ASes present in the Internet Routing Table: 1520
Average ARIN Region AS path length visible: 3.5
Max ARIN Region AS path length visible: 20
Number of ARIN region 32-bit ASNs visible in the Routing Table: 15
Number of ARIN addresses announced to Internet: 805497864
Equivalent to 48 /8s, 2 /16s and 236 /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: 101572
Total RIPE prefixes after maximum aggregation: 52886
RIPE Deaggregation factor: 1.92
Prefixes being announced from the RIPE address blocks: 92442
Unique aggregates announced from the RIPE address blocks: 56784
RIPE Region origin ASes present in the Internet Routing Table: 16353
RIPE Prefixes per ASN: 5.65
RIPE Region origin ASes announcing only one prefix: 8017
RIPE Region transit ASes present in the Internet Routing Table: 2561
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 28
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1386
Number of RIPE addresses announced to Internet: 501208204
Equivalent to 29 /8s, 223 /16s and 212 /24s
Percentage of available RIPE address space announced: 80.7
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: 39279
Total LACNIC prefixes after maximum aggregation: 8114
LACNIC Deaggregation factor: 4.84
Prefixes being announced from the LACNIC address blocks: 38890
Unique aggregates announced from the LACNIC address blocks: 19535
LACNIC Region origin ASes present in the Internet Routing Table: 1571
LACNIC Prefixes per ASN: 24.75
LACNIC Region origin ASes announcing only one prefix: 444
LACNIC Region transit ASes present in the Internet Routing Table: 292
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 17
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 459
Number of LACNIC addresses announced to Internet: 97443848
Equivalent to 5 /8s, 206 /16s and 224 /24s
Percentage of available LACNIC address space announced: 64.5
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: 8752
Total AfriNIC prefixes after maximum aggregation: 2088
AfriNIC Deaggregation factor: 4.19
Prefixes being announced from the AfriNIC address blocks: 6756
Unique aggregates announced from the AfriNIC address blocks: 2101
AfriNIC Region origin ASes present in the Internet Routing Table: 508
AfriNIC Prefixes per ASN: 13.30
AfriNIC Region origin ASes announcing only one prefix: 161
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: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 31124480
Equivalent to 1 /8s, 218 /16s and 236 /24s
Percentage of available AfriNIC address space announced: 46.4
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 1919 11099 676 Korea Telecom (KIX)
17974 1728 503 36 PT TELEKOMUNIKASI INDONESIA
7545 1639 303 88 TPG Internet Pty Ltd
4755 1559 386 157 Videsh Sanchar Nigam Ltd. Aut
9829 1179 997 29 BSNL National Internet Backbo
9583 1129 84 483 Sify Limited
7552 1104 1062 11 Vietel Corporation
4808 1070 2041 306 CNCGROUP IP network: China169
24560 1023 385 167 Bharti Airtel Ltd.
18101 948 130 154 Reliance Infocom Ltd Internet
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 3433 3807 200 bellsouth.net, inc.
7029 3431 1028 167 Windstream Communications Inc
18566 2093 382 177 Covad Communications
1785 1876 680 126 AppliedTheory Corporation
20115 1629 1551 629 Charter Communications
4323 1606 1075 380 Time Warner Telecom
22773 1536 2910 110 Cox Communications, Inc.
30036 1416 254 744 Mediacom Communications Corp
19262 1388 4703 398 Verizon Global Networks
7018 1309 6996 854 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 1726 480 15 Corbina telecom
2118 1399 97 13 EUnet/RELCOM Autonomous Syste
15557 1099 2184 60 LDCOM NETWORKS
286 1058 806 200 KPNQwest Backbone AS
34984 657 188 172 Tellcom Iletisim Hizmetleri
6830 645 1927 414 UPC Distribution Services
20940 624 203 484 Akamai Technologies European
12479 608 644 55 Uni2 Autonomous System
8551 565 360 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 1751 324 171 TVCABLE BOGOTA
28573 1671 1088 62 Types of queries are: POCs, o
8151 1524 2991 344 Uninet S.A. de C.V.
7303 1328 822 186 Telecom Argentina Stet-France
26615 858 672 33 Types of queries are: POCs, o
27947 663 67 108 Telconet S.A
11172 632 91 72 Alestra
6503 583 418 67 AVANTEL, S.A.
22047 581 322 17 Types of queries are: POCs, o
3816 557 239 93 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 1255 958 13 TEDATA
24863 831 274 35 LINKdotNET AS number
6713 489 649 18 Itissalat Al-MAGHRIB
3741 277 923 228 The Internet Solution
15706 227 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
33776 182 12 20 Starcomms Nigeria Limited
36923 157 20 4 Swift Networks Limited
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 3433 3807 200 bellsouth.net, inc.
7029 3431 1028 167 Windstream Communications Inc
18566 2093 382 177 Covad Communications
4766 1919 11099 676 Korea Telecom (KIX)
1785 1876 680 126 AppliedTheory Corporation
10620 1751 324 171 TVCABLE BOGOTA
17974 1728 503 36 PT TELEKOMUNIKASI INDONESIA
8402 1726 480 15 Corbina telecom
28573 1671 1088 62 Types of queries are: POCs, o
7545 1639 303 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 3431 3264 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1876 1750 AppliedTheory Corporation
8402 1726 1711 Corbina telecom
17974 1728 1692 PT TELEKOMUNIKASI INDONESIA
28573 1671 1609 Types of queries are: POCs, o
10620 1751 1580 TVCABLE BOGOTA
7545 1639 1551 TPG Internet Pty Ltd
22773 1536 1426 Cox Communications, Inc.
4755 1559 1402 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 /10:28 /11:81 /12:232
/13:458 /14:821 /15:1506 /16:12298 /17:6483 /18:10763
/19:21019 /20:29616 /21:29713 /22:40150 /23:37574 /24:209722
/25:67 /26:81 /27:108 /28:279 /29:105 /30:522
/31:18 /32:450
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3074 3431 Windstream Communications Inc
6389 2106 3433 bellsouth.net, inc.
18566 2042 2093 Covad Communications
8402 1705 1726 Corbina telecom
10620 1648 1751 TVCABLE BOGOTA
30036 1366 1416 Mediacom Communications Corp
11492 1122 1159 Cable One
1785 1064 1876 AppliedTheory Corporation
8452 1063 1255 TEDATA
15557 1046 1099 LDCOM NETWORKS
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:505 2:695 4:18 6:3 8:388 12:1964
13:1 14:600 15:11 16:3 17:7 20:8
23:134 24:1745 27:1198 31:946 32:124 33:2
34:2 36:9 37:205 38:776 39:4 40:116
41:2978 42:114 43:1 44:3 46:1351 47:3
49:337 50:512 52:13 54:2 55:7 56:3
57:46 58:972 59:495 60:345 61:1202 62:971
63:2027 64:4143 65:2280 66:4498 67:2062 68:1357
69:3280 70:955 71:406 72:1821 73:1 74:2700
75:483 76:331 77:973 78:965 79:522 80:1209
81:885 82:642 83:531 84:596 85:1162 86:737
87:922 88:350 89:1574 90:282 91:4526 92:512
93:1352 94:1393 95:1121 96:425 97:311 98:839
99:38 100:4 101:246 103:848 106:66 107:161
108:182 109:1552 110:731 111:855 112:440 113:545
114:618 115:782 116:886 117:724 118:919 119:1265
120:368 121:714 122:1623 123:1057 124:1383 125:1318
128:538 129:193 130:219 131:591 132:164 133:21
134:233 135:62 136:214 137:184 138:268 139:157
140:491 141:260 142:395 143:417 144:514 145:69
146:486 147:251 148:767 149:300 150:164 151:198
152:448 153:171 154:7 155:416 156:212 157:371
158:164 159:514 160:321 161:245 162:342 163:188
164:531 165:413 166:559 167:460 168:761 169:147
170:839 171:117 172:4 173:1743 174:603 175:444
176:515 177:499 178:1287 180:1209 181:68 182:754
183:283 184:433 185:1 186:2019 187:862 188:1085
189:1192 190:5487 192:6004 193:5565 194:4370 195:3443
196:1284 197:165 198:3633 199:4424 200:5720 201:1744
202:8464 203:8700 204:4360 205:2429 206:2757 207:2796
208:4090 209:3574 210:2791 211:1491 212:2068 213:1850
214:828 215:101 216:5033 217:1501 218:552 219:338
220:1236 221:563 222:347 223:314
End of report