Routing Table Report 08:00 +10GMT Fri 24 Feb, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 392070
Prefixes after maximum aggregation: 168149
Deaggregation factor: 2.33
Unique aggregates announced to Internet: 193467
Total ASes present in the Internet Routing Table: 38050
Prefixes per ASN: 10.30
Origin-only ASes present in the Internet Routing Table: 32770
Origin ASes announcing only one prefix: 15548
Transit ASes present in the Internet Routing Table: 5280
Transit-only ASes present in the Internet Routing Table: 130
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 24
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 1129
Unregistered ASNs in the Routing Table: 192
Number of 32-bit ASNs allocated by the RIRs: 2291
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4817
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 294
Number of addresses announced to Internet: 2539043840
Equivalent to 151 /8s, 86 /16s and 188 /24s
Percentage of available address space announced: 68.5
Percentage of allocated address space announced: 68.5
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: 165325
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92561
Total APNIC prefixes after maximum aggregation: 30402
APNIC Deaggregation factor: 3.04
Prefixes being announced from the APNIC address blocks: 89891
Unique aggregates announced from the APNIC address blocks: 39323
APNIC Region origin ASes present in the Internet Routing Table: 4609
APNIC Prefixes per ASN: 19.50
APNIC Region origin ASes announcing only one prefix: 1253
APNIC Region transit ASes present in the Internet Routing Table: 705
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 639840512
Equivalent to 38 /8s, 35 /16s and 49 /24s
Percentage of available APNIC address space announced: 81.1
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: 147189
Total ARIN prefixes after maximum aggregation: 74935
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 119229
Unique aggregates announced from the ARIN address blocks: 49534
ARIN Region origin ASes present in the Internet Routing Table: 14855
ARIN Prefixes per ASN: 8.03
ARIN Region origin ASes announcing only one prefix: 5671
ARIN Region transit ASes present in the Internet Routing Table: 1509
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 16
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 805399808
Equivalent to 48 /8s, 1 /16s and 109 /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: 99837
Total RIPE prefixes after maximum aggregation: 52632
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 91509
Unique aggregates announced from the RIPE address blocks: 56760
RIPE Region origin ASes present in the Internet Routing Table: 16324
RIPE Prefixes per ASN: 5.61
RIPE Region origin ASes announcing only one prefix: 8021
RIPE Region transit ASes present in the Internet Routing Table: 2588
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 22
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 501066496
Equivalent to 29 /8s, 221 /16s and 171 /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: 38017
Total LACNIC prefixes after maximum aggregation: 8005
LACNIC Deaggregation factor: 4.75
Prefixes being announced from the LACNIC address blocks: 37851
Unique aggregates announced from the LACNIC address blocks: 19540
LACNIC Region origin ASes present in the Internet Routing Table: 1563
LACNIC Prefixes per ASN: 24.22
LACNIC Region origin ASes announcing only one prefix: 442
LACNIC Region transit ASes present in the Internet Routing Table: 284
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 22
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 96964352
Equivalent to 5 /8s, 199 /16s and 143 /24s
Percentage of available LACNIC address space announced: 64.2
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: 8923
Total AfriNIC prefixes after maximum aggregation: 2086
AfriNIC Deaggregation factor: 4.28
Prefixes being announced from the AfriNIC address blocks: 6971
Unique aggregates announced from the AfriNIC address blocks: 2108
AfriNIC Region origin ASes present in the Internet Routing Table: 515
AfriNIC Prefixes per ASN: 13.54
AfriNIC Region origin ASes announcing only one prefix: 161
AfriNIC Region transit ASes present in the Internet Routing Table: 119
Average AfriNIC Region AS path length visible: 3.3
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 31518208
Equivalent to 1 /8s, 224 /16s and 238 /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 1928 11104 681 Korea Telecom (KIX)
17974 1649 503 36 PT Telekomunikasi Indonesia
4755 1542 386 160 TATA Communications formerly
7545 1500 303 87 TPG Internet Pty Ltd
9829 1182 997 29 National Internet Backbone
9583 1126 84 483 Sify Limited
7552 1103 1062 11 Vietel Corporation
24560 1019 385 167 Bharti Airtel Ltd., Telemedia
4808 976 1946 278 CNCGROUP IP network China169
18101 951 131 156 Reliance Infocom Ltd Internet
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7029 3447 1040 172 Windstream Communications Inc
6389 3438 3807 200 BellSouth.net Inc.
18566 2092 382 177 Covad Communications Co.
1785 1874 680 125 PaeTec Communications, Inc.
20115 1628 1551 630 Charter Communications
4323 1605 1059 380 tw telecom holdings, inc.
22773 1535 2910 110 Cox Communications Inc.
30036 1411 253 747 Mediacom Communications Corp
19262 1389 4703 399 Verizon Online LLC
7018 1316 7013 857 AT&T Services, Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8402 1759 480 15 Corbina telecom
2118 1398 97 13 EUnet/RELCOM Autonomous Syste
15557 1099 2184 60 NEUF CEGETEL (formerly LDCOM
34984 657 188 171 BILISIM TELEKOM
6830 644 1927 413 UPC Broadband
20940 611 197 475 Akamai Technologies European
12479 604 644 55 France Telecom Espana SA
8551 567 360 81 Bezeq International
9116 541 326 32 Goldenlines main autonomous s
31148 541 37 9 FreeNet ISP
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1751 324 171 Types of queries are: POCs, o
28573 1683 1088 62 Types of queries are: POCs, o
8151 1339 2990 343 Uninet S.A. de C.V.
7303 1328 822 186 Telecom Argentina S.A.
26615 857 672 33 Tim Celular S.A.
27947 639 67 108 Telconet S.A
11172 635 107 74 Alestra, S. de R.L. de C.V.
22047 581 322 17 Types of queries are: POCs, o
7738 550 1050 31 Telecomunicacoes da Bahia S.A
6503 541 418 67 Axtel, S.A.B. de C.V.
Complete listing at http://thyme.rand.apnic.net/london/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 34 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 Vodacom Internet Company
24835 194 80 8 RAYA Telecom - Egypt
33776 182 12 20 Starcomms Nigeria Limited
16637 160 664 85 MTN Network Solutions
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
7029 3447 1040 172 Windstream Communications Inc
6389 3438 3807 200 BellSouth.net Inc.
18566 2092 382 177 Covad Communications Co.
4766 1928 11104 681 Korea Telecom (KIX)
1785 1874 680 125 PaeTec Communications, Inc.
8402 1759 480 15 Corbina telecom
10620 1751 324 171 Types of queries are: POCs, o
28573 1683 1088 62 Types of queries are: POCs, o
17974 1649 503 36 PT Telekomunikasi Indonesia
20115 1628 1551 630 Charter Communications
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6389 3438 3238 BellSouth.net Inc.
18566 2092 1915 Covad Communications Co.
1785 1874 1749 PaeTec Communications, Inc.
8402 1759 1744 Corbina telecom
28573 1683 1621 Types of queries are: POCs, o
17974 1649 1613 PT Telekomunikasi Indonesia
10620 1751 1580 Types of queries are: POCs, o
22773 1535 1425 Cox Communications Inc.
7545 1500 1413 TPG Internet Pty Ltd
2118 1398 1385 EUnet/RELCOM Autonomous Syste
Complete listing at http://thyme.rand.apnic.net/london/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65333 PRIVATE 10.0.0.0/8 0 *
32805 UNALLOCATED 12.1.225.0/24 7018 AT&T Services, Inc.
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T Services, Inc.
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T Services, Inc.
16504 UNALLOCATED 12.18.155.0/24 30170 Optic Fusion
32567 UNALLOCATED 12.25.107.0/24 4323 tw telecom holdings,
30031 UNALLOCATED 12.27.122.0/24 7018 AT&T Services, Inc.
26095 UNALLOCATED 12.34.8.0/24 7018 AT&T Services, Inc.
21861 UNALLOCATED 12.37.59.0/24 7018 AT&T Services, Inc.
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T Services, Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.0.0.0/8 65333 Internet Assigned Numbers Aut
128.0.0.0/21 12654 RIPE NCC RIS Project
128.0.24.0/24 12654 RIPE NCC RIS Project
169.254.0.0/16 65333 Internet Assigned Numbers Aut
172.16.0.0/12 65333 Internet Assigned Numbers Aut
192.0.2.0/24 65333 Internet Assigned Numbers Aut
192.168.0.0/16 0 *
198.18.0.0/15 65333 Internet Assigned Numbers Aut
Complete listing at http://thyme.rand.apnic.net/london/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/london/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 /12:233
/13:459 /14:809 /15:1471 /16:12103 /17:6197 /18:10312
/19:20499 /20:28291 /21:28969 /22:39317 /23:36709 /24:206012
/25:11 /26:21 /27:20 /28:152 /29:139 /30:67
/31:0 /32:138
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3084 3447 Windstream Communications Inc
6389 2109 3438 BellSouth.net Inc.
18566 2041 2092 Covad Communications Co.
8402 1738 1759 Corbina telecom
10620 1648 1751 Types of queries are: POCs, o
30036 1361 1411 Mediacom Communications Corp
11492 1122 1159 CABLE ONE, INC.
1785 1063 1874 PaeTec Communications, Inc.
8452 1063 1255 TEDATA
15557 1046 1099 NEUF CEGETEL (formerly LDCOM
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:501 2:725 4:14 6:3 8:387 12:1961
13:1 14:597 15:11 16:3 17:7 20:8
23:134 24:1691 27:1193 31:918 32:60 33:2
34:2 36:9 37:199 38:777 40:116 41:3114
42:112 44:3 46:1323 47:3 49:332 50:508
52:13 54:2 55:9 56:3 57:35 58:919
59:483 60:335 61:1089 62:964 63:2000 64:4097
65:2281 66:4445 67:2023 68:1166 69:3160 70:908
71:407 72:1788 74:2646 75:470 76:320 77:969
78:964 79:506 80:1220 81:879 82:634 83:526
84:583 85:1151 86:734 87:912 88:333 89:1561
90:283 91:4493 92:511 93:1353 94:1387 95:1115
96:414 97:312 98:830 99:38 100:4 101:154
103:808 106:65 107:161 108:173 109:1541 110:706
111:854 112:418 113:520 114:601 115:760 116:857
117:702 118:904 119:1246 120:363 121:656 122:1590
123:1062 124:1302 125:1313 128:504 129:182 130:212
131:588 132:154 133:21 134:224 135:62 136:212
137:179 138:287 139:143 140:466 141:260 142:376
143:407 144:513 145:69 146:481 147:238 148:713
149:300 150:156 151:198 152:446 153:171 154:7
155:410 156:209 157:338 158:163 159:444 160:320
161:223 162:339 163:177 164:527 165:394 166:558
167:459 168:757 169:147 170:838 171:117 172:4
173:1719 174:603 175:422 176:508 177:490 178:1267
180:1179 181:68 182:723 183:280 184:432 185:1
186:2009 187:860 188:1082 189:1180 190:5455 192:5940
193:5545 194:4344 195:3394 196:1259 197:167 198:3576
199:4370 200:5608 201:1727 202:8176 203:8539 204:4287
205:2413 206:2653 207:2722 208:4059 209:3527 210:2684
211:1446 212:2032 213:1841 214:851 215:100 216:5006
217:1503 218:535 219:332 220:1217 221:546 222:297
223:300
End of report