Routing Table Report 00:00 GMT Tue 21 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: 402093
Prefixes after maximum aggregation: 171401
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 193151
Total ASes present in the Internet Routing Table: 40185
Prefixes per ASN: 10.01
Origin-only ASes present in the Internet Routing Table: 32772
Origin ASes announcing only one prefix: 15553
Transit ASes present in the Internet Routing Table: 5421
Transit-only ASes present in the Internet Routing Table: 143
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: 5179
Unregistered ASNs in the Routing Table: 152
Number of 32-bit ASNs allocated by the RIRs: 2285
Number of 32-bit ASNs visible in the Routing Table: 1992
Prefixes from 32-bit ASNs in the Routing Table: 4795
Special use prefixes present in the Routing Table: 87
Prefixes being announced from unallocated address space: 252
Number of addresses announced to Internet: 2517382109
Equivalent to 150 /8s, 12 /16s and 51 /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: 169313
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 96440
Total APNIC prefixes after maximum aggregation: 30805
APNIC Deaggregation factor: 3.13
Prefixes being announced from the APNIC address blocks: 92828
Unique aggregates announced from the APNIC address blocks: 39255
APNIC Region origin ASes present in the Internet Routing Table: 4637
APNIC Prefixes per ASN: 20.02
APNIC Region origin ASes announcing only one prefix: 1248
APNIC Region transit ASes present in the Internet Routing Table: 748
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: 636245248
Equivalent to 37 /8s, 236 /16s and 85 /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: 151158
Total ARIN prefixes after maximum aggregation: 77524
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 122812
Unique aggregates announced from the ARIN address blocks: 49526
ARIN Region origin ASes present in the Internet Routing Table: 14926
ARIN Prefixes per ASN: 8.23
ARIN Region origin ASes announcing only one prefix: 5670
ARIN Region transit ASes present in the Internet Routing Table: 1548
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: 805349896
Equivalent to 48 /8s, 0 /16s and 170 /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: 101377
Total RIPE prefixes after maximum aggregation: 52767
RIPE Deaggregation factor: 1.92
Prefixes being announced from the RIPE address blocks: 92245
Unique aggregates announced from the RIPE address blocks: 56469
RIPE Region origin ASes present in the Internet Routing Table: 16347
RIPE Prefixes per ASN: 5.64
RIPE Region origin ASes announcing only one prefix: 8028
RIPE Region transit ASes present in the Internet Routing Table: 2631
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: 1368
Number of RIPE addresses announced to Internet: 501249164
Equivalent to 29 /8s, 224 /16s and 116 /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: 39122
Total LACNIC prefixes after maximum aggregation: 8107
LACNIC Deaggregation factor: 4.83
Prefixes being announced from the LACNIC address blocks: 38723
Unique aggregates announced from the LACNIC address blocks: 19530
LACNIC Region origin ASes present in the Internet Routing Table: 1572
LACNIC Prefixes per ASN: 24.63
LACNIC Region origin ASes announcing only one prefix: 445
LACNIC Region transit ASes present in the Internet Routing Table: 298
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: 456
Number of LACNIC addresses announced to Internet: 96715016
Equivalent to 5 /8s, 195 /16s and 193 /24s
Percentage of available LACNIC address space announced: 64.1
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: 8969
Total AfriNIC prefixes after maximum aggregation: 2108
AfriNIC Deaggregation factor: 4.25
Prefixes being announced from the AfriNIC address blocks: 6993
Unique aggregates announced from the AfriNIC address blocks: 2121
AfriNIC Region origin ASes present in the Internet Routing Table: 514
AfriNIC Prefixes per ASN: 13.61
AfriNIC Region origin ASes announcing only one prefix: 162
AfriNIC Region transit ASes present in the Internet Routing Table: 118
Average AfriNIC Region AS path length visible: 4.2
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: 31433216
Equivalent to 1 /8s, 223 /16s and 162 /24s
Percentage of available AfriNIC address space announced: 46.8
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 1916 11102 671 Korea Telecom (KIX)
17974 1735 503 36 PT TELEKOMUNIKASI INDONESIA
7545 1641 303 85 TPG Internet Pty Ltd
4755 1553 386 161 Videsh Sanchar Nigam Ltd. Aut
7552 1265 1064 7 Vietel Corporation
9829 1181 997 29 BSNL National Internet Backbo
9583 1125 84 482 Sify Limited
24560 1019 385 167 Bharti Airtel Ltd.
4808 973 1986 292 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 3440 3807 202 bellsouth.net, inc.
7029 3408 1018 160 Windstream Communications Inc
18566 2091 382 177 Covad Communications
1785 1871 680 126 AppliedTheory Corporation
20115 1627 1550 629 Charter Communications
4323 1602 1043 378 Time Warner Telecom
22773 1528 2910 110 Cox Communications, Inc.
30036 1406 251 747 Mediacom Communications Corp
19262 1387 4703 397 Verizon Global Networks
7018 1306 6996 848 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 1758 480 15 Corbina telecom
2118 1398 96 38 EUnet/RELCOM Autonomous Syste
15557 1098 2184 60 LDCOM NETWORKS
286 1054 806 197 KPNQwest Backbone AS
34984 652 188 171 Tellcom Iletisim Hizmetleri
6830 642 1926 411 UPC Distribution Services
20940 612 198 476 Akamai Technologies European
12479 608 644 55 Uni2 Autonomous System
8551 575 360 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 1745 323 173 TVCABLE BOGOTA
28573 1669 1085 65 Types of queries are: POCs, o
8151 1525 2989 348 Uninet S.A. de C.V.
7303 1264 758 183 Telecom Argentina Stet-France
26615 814 668 34 Types of queries are: POCs, o
27947 661 67 108 Telconet S.A
11172 633 107 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 1235 958 13 TEDATA
24863 832 274 37 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 226 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
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 3440 3807 202 bellsouth.net, inc.
7029 3408 1018 160 Windstream Communications Inc
18566 2091 382 177 Covad Communications
4766 1916 11102 671 Korea Telecom (KIX)
1785 1871 680 126 AppliedTheory Corporation
8402 1758 480 15 Corbina telecom
10620 1745 323 173 TVCABLE BOGOTA
17974 1735 503 36 PT TELEKOMUNIKASI INDONESIA
28573 1669 1085 65 Types of queries are: POCs, o
7545 1641 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
1785 1871 1745 AppliedTheory Corporation
8402 1758 1743 Corbina telecom
17974 1735 1699 PT TELEKOMUNIKASI INDONESIA
28573 1669 1604 Types of queries are: POCs, o
10620 1745 1572 TVCABLE BOGOTA
7545 1641 1556 TPG Internet Pty Ltd
22773 1528 1418 Cox Communications, Inc.
4755 1553 1392 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 /8:20 /9:12 /10:27 /11:80 /12:231
/13:459 /14:818 /15:1505 /16:12299 /17:6483 /18:10736
/19:21009 /20:29582 /21:29735 /22:40265 /23:37534 /24:209655
/25:67 /26:82 /27:110 /28:281 /29:105 /30:530
/31:19 /32:449
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3063 3408 Windstream Communications Inc
6389 2109 3440 bellsouth.net, inc.
18566 2040 2091 Covad Communications
8402 1737 1758 Corbina telecom
10620 1642 1745 TVCABLE BOGOTA
30036 1357 1406 Mediacom Communications Corp
11492 1118 1155 Cable One
1785 1064 1871 AppliedTheory Corporation
8452 1045 1235 TEDATA
15557 1045 1098 LDCOM NETWORKS
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:504 2:726 4:18 5:1 6:3 8:388
12:1960 13:1 14:604 15:11 16:3 17:7
20:8 23:135 24:1741 27:1196 31:947 32:124
33:2 34:2 36:9 37:187 38:782 39:4
40:115 41:3152 42:97 43:1 44:3 46:1318
47:3 49:334 50:507 52:13 54:2 55:10
56:3 57:46 58:974 59:496 60:345 61:1203
62:976 63:2022 64:4153 65:2284 66:4474 67:2059
68:1356 69:3275 70:981 71:414 72:1823 73:1
74:2709 75:481 76:332 77:979 78:969 79:488
80:1218 81:885 82:632 83:526 84:596 85:1155
86:746 87:923 88:350 89:1570 90:282 91:4491
92:512 93:1355 94:1384 95:1107 96:422 97:312
98:811 99:38 100:4 101:272 103:826 106:65
107:157 108:174 109:1538 110:725 111:854 112:440
113:545 114:617 115:763 116:899 117:724 118:914
119:1261 120:367 121:710 122:1626 123:1084 124:1391
125:1326 128:539 129:193 130:218 131:578 132:166
133:21 134:236 135:62 136:215 137:181 138:288
139:156 140:487 141:263 142:395 143:404 144:513
145:69 146:480 147:247 148:769 149:282 150:163
151:198 152:447 153:170 154:7 155:414 156:213
157:370 158:160 159:511 160:321 161:246 162:343
163:187 164:530 165:411 166:559 167:458 168:763
169:147 170:838 171:115 172:4 173:1741 174:590
175:444 176:507 177:493 178:1277 180:1207 181:68
182:745 183:279 184:431 185:1 186:1957 187:862
188:1082 189:1180 190:5527 192:6011 193:5554 194:4365
195:3444 196:1291 197:166 198:3627 199:4406 200:5709
201:1745 202:8469 203:8684 204:4370 205:2440 206:2764
207:2797 208:4102 209:3583 210:2791 211:1492 212:2061
213:1857 214:847 215:92 216:5050 217:1502 218:553
219:340 220:1232 221:562 222:347 223:316
End of report