The Border Gateway Protocol (BGP) is the protocol backing the core routing decisions on the Internet. It maintains a table of IP networks or 'prefixes' which designate network reachability among autonomous systems (AS). It is described as a path vector protocol. BGP does not use traditional Interior Gateway Protocol (IGP) metrics, but makes routing decisions based on path, network policies and/or rulesets. For this reason, it is more appropriately termed a reachability protocol rather than routing protocol.

Thursday, November 21, 2013

[bgp-stats] Routing Table Report - Brisbane view

* BGP Routing Table Analysis Reports *
Routing Table Report 05:00 +10GMT Fri 22 Nov, 2013

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/au/

Analysis Summary
----------------

BGP routing table entries examined: 468325
Prefixes after maximum aggregation: 188137
Deaggregation factor: 2.49
Unique aggregates announced to Internet: 234400
Total ASes present in the Internet Routing Table: 45393
Prefixes per ASN: 10.32
Origin-only ASes present in the Internet Routing Table: 35435
Origin ASes announcing only one prefix: 16322
Transit ASes present in the Internet Routing Table: 5786
Transit-only ASes present in the Internet Routing Table: 148
Average AS path length visible in the Internet Routing Table: 4.9
Max AS path length visible: 29
Max AS path prepend of ASN ( 36992) 22
Prefixes from unregistered ASNs in the Routing Table: 993
Unregistered ASNs in the Routing Table: 288
Number of 32-bit ASNs allocated by the RIRs: 5378
Number of 32-bit ASNs visible in the Routing Table: 4172
Prefixes from 32-bit ASNs in the Routing Table: 13079
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 1141
Number of addresses announced to Internet: 2653595388
Equivalent to 158 /8s, 42 /16s and 166 /24s
Percentage of available address space announced: 71.7
Percentage of allocated address space announced: 71.7
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 95.3
Total number of prefixes smaller than registry allocations: 162320

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 109784
Total APNIC prefixes after maximum aggregation: 33314
APNIC Deaggregation factor: 3.30
Prefixes being announced from the APNIC address blocks: 112028
Unique aggregates announced from the APNIC address blocks: 47530
APNIC Region origin ASes present in the Internet Routing Table: 4848
APNIC Prefixes per ASN: 23.11
APNIC Region origin ASes announcing only one prefix: 1234
APNIC Region transit ASes present in the Internet Routing Table: 821
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 751
Number of APNIC addresses announced to Internet: 728471036
Equivalent to 43 /8s, 107 /16s and 149 /24s
Percentage of available APNIC address space announced: 85.1

APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-63999, 131072-133631
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, 150/8, 153/8,
163/8, 171/8, 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: 161987
Total ARIN prefixes after maximum aggregation: 81319
ARIN Deaggregation factor: 1.99
Prefixes being announced from the ARIN address blocks: 162823
Unique aggregates announced from the ARIN address blocks: 76106
ARIN Region origin ASes present in the Internet Routing Table: 15892
ARIN Prefixes per ASN: 10.25
ARIN Region origin ASes announcing only one prefix: 6015
ARIN Region transit ASes present in the Internet Routing Table: 1621
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 23
Number of ARIN region 32-bit ASNs visible in the Routing Table: 38
Number of ARIN addresses announced to Internet: 1073567232
Equivalent to 63 /8s, 253 /16s and 86 /24s
Percentage of available ARIN address space announced: 56.8

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, 62464-63487, 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, 128/8,
129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8,
137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8,
146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8,
157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8,
165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8,
173/8, 174/8, 184/8, 192/8, 198/8, 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: 119040
Total RIPE prefixes after maximum aggregation: 60939
RIPE Deaggregation factor: 1.95
Prefixes being announced from the RIPE address blocks: 122831
Unique aggregates announced from the RIPE address blocks: 78737
RIPE Region origin ASes present in the Internet Routing Table: 17505
RIPE Prefixes per ASN: 7.02
RIPE Region origin ASes announcing only one prefix: 8302
RIPE Region transit ASes present in the Internet Routing Table: 2764
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 21
Number of RIPE region 32-bit ASNs visible in the Routing Table: 2482
Number of RIPE addresses announced to Internet: 656188416
Equivalent to 39 /8s, 28 /16s and 164 /24s
Percentage of available RIPE address space announced: 95.4

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
59392-61439, 61952-62463, 196608-200191
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,
141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8,
193/8, 194/8, 195/8, 212/8, 213/8, 217/8,

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes: 52566
Total LACNIC prefixes after maximum aggregation: 9804
LACNIC Deaggregation factor: 5.36
Prefixes being announced from the LACNIC address blocks: 57714
Unique aggregates announced from the LACNIC address blocks: 27045
LACNIC Region origin ASes present in the Internet Routing Table: 2032
LACNIC Prefixes per ASN: 28.40
LACNIC Region origin ASes announcing only one prefix: 562
LACNIC Region transit ASes present in the Internet Routing Table: 382
Average LACNIC Region AS path length visible: 5.4
Max LACNIC Region AS path length visible: 29
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 895
Number of LACNIC addresses announced to Internet: 143427328
Equivalent to 8 /8s, 140 /16s and 135 /24s
Percentage of available LACNIC address space announced: 85.5

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 262144-263679 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
191/8, 200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes: 11159
Total AfriNIC prefixes after maximum aggregation: 2601
AfriNIC Deaggregation factor: 4.29
Prefixes being announced from the AfriNIC address blocks: 11788
Unique aggregates announced from the AfriNIC address blocks: 4066
AfriNIC Region origin ASes present in the Internet Routing Table: 688
AfriNIC Prefixes per ASN: 17.13
AfriNIC Region origin ASes announcing only one prefix: 209
AfriNIC Region transit ASes present in the Internet Routing Table: 136
Average AfriNIC Region AS path length visible: 5.1
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 6
Number of AfriNIC addresses announced to Internet: 48028416
Equivalent to 2 /8s, 220 /16s and 219 /24s
Percentage of available AfriNIC address space announced: 47.7

AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
17974 2713 902 88 PT TELEKOMUNIKASI INDONESIA
4766 2139 11550 641 Korea Telecom (KIX)
7545 2108 319 110 TPG Internet Pty Ltd
4755 1792 392 190 TATA Communications formerly
9829 1544 1245 45 BSNL National Internet Backbo
9583 1246 95 509 Sify Limited
9498 1210 309 73 BHARTI Airtel Ltd.
7552 1163 1080 13 Vietel Corporation
24560 1095 380 166 Bharti Airtel Ltd., Telemedia
4808 1040 1945 301 CNCGROUP IP network: China169

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3043 3688 53 BellSouth.net Inc.
22773 2209 2941 142 Cox Communications, Inc.
1785 2058 686 145 PaeTec Communications, Inc.
18566 2054 379 178 MegaPath Corporation
20115 1680 1654 597 Charter Communications
4323 1650 1114 420 Time Warner Telecom
701 1504 11162 781 MCI Communications Services,
30036 1387 313 582 Mediacom Communications Corp
7018 1333 17778 871 AT&T WorldNet Services
6983 1296 758 581 ITC^Deltacom

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8402 1931 544 16 OJSC "Vimpelcom"
34984 1367 244 223 TELLCOM ILETISIM HIZMETLERI A
20940 1154 431 875 Akamai Technologies European
31148 1009 45 19 FreeNet ISP
13188 894 99 48 TOV "Bank-Inform"
6849 869 363 39 JSC UKRTELECOM,
8551 787 370 41 Bezeq International
6830 777 2328 429 UPC Distribution Services
12479 679 797 57 Uni2 Autonomous System
35228 546 246 16 Avatar Broadband Limited

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3392 1794 88 NET Servicos de Comunicao S.A
10620 2666 432 219 Telmex Colombia S.A.
7303 1729 1151 232 Telecom Argentina Stet-France
18881 1643 908 20 Global Village Telecom
8151 1341 2847 412 UniNet S.A. de C.V.
11830 866 364 15 Instituto Costarricense de El
27947 821 94 92 Telconet S.A
6147 815 373 27 Telefonica Del Peru
6503 789 434 63 AVANTEL, S.A.
7738 780 1498 36 Telecomunicacoes da Bahia S.A

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
36998 1284 112 5 Sudanese Mobile Telephone (ZA
24863 888 338 26 LINKdotNET AS number
6713 554 633 26 Itissalat Al-MAGHRIB
8452 410 956 9 TEDATA
24835 297 144 9 RAYA Telecom - Egypt
3741 256 921 214 The Internet Solution
29571 224 17 12 Ci Telecom Autonomous system
15706 221 32 6 Sudatel Internet Exchange Aut
36992 219 501 29 Etisalat MISR
29975 192 668 21 Vodacom

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3392 1794 88 NET Servicos de Comunicao S.A
6389 3043 3688 53 BellSouth.net Inc.
17974 2713 902 88 PT TELEKOMUNIKASI INDONESIA
10620 2666 432 219 Telmex Colombia S.A.
22773 2209 2941 142 Cox Communications, Inc.
4766 2139 11550 641 Korea Telecom (KIX)
7545 2108 319 110 TPG Internet Pty Ltd
1785 2058 686 145 PaeTec Communications, Inc.
18566 2054 379 178 MegaPath Corporation
8402 1931 544 16 OJSC "Vimpelcom"

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
6389 3043 2990 BellSouth.net Inc.
17974 2713 2625 PT TELEKOMUNIKASI INDONESIA
10620 2666 2447 Telmex Colombia S.A.
22773 2209 2067 Cox Communications, Inc.
7545 2108 1998 TPG Internet Pty Ltd
8402 1931 1915 OJSC "Vimpelcom"
1785 2058 1913 PaeTec Communications, Inc.
18566 2054 1876 MegaPath Corporation
18881 1643 1623 Global Village Telecom
4755 1792 1602 TATA Communications formerly

Complete listing at http://thyme.rand.apnic.net/au/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS Designation Network Transit AS Description
65010 PRIVATE 1.38.8.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.9.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.11.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.32.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.160.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.192.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.224.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.240.0/21 38266 Hutchison Essar Ltd.
65514 PRIVATE 5.102.224.0/19 47956 XFONE COMMUNICATION
62828 UNALLOCATED 8.21.130.0/24 4323 Time Warner Telecom

Complete listing at http://thyme.rand.apnic.net/au/data-badAS

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix Origin AS Description
100.100.0.0/24 4847 China Networks Inter-Exchange

Complete listing at http://thyme.rand.apnic.net/au/data-dsua

Advertised Unallocated Addresses
--------------------------------

Network Origin AS Description
23.90.128.0/18 27418 OUTOFWALL INC.
23.91.0.0/19 40676 Psychz Networks
23.91.4.0/24 40676 Psychz Networks
23.91.14.0/24 40676 Psychz Networks
23.91.21.0/24 40676 Psychz Networks
23.91.32.0/19 36315 Servpac Inc.
23.91.80.0/20 21560 Capital Technology Services G
23.91.96.0/20 37958 ChinaCache Networks ASN
23.91.112.0/21 32475 MidPhase Inc.
23.91.160.0/19 36493 3757277 Canada Inc. (oa 295.c

Complete listing at http://thyme.rand.apnic.net/au/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 /8:16 /9:11 /10:31 /11:92 /12:253
/13:474 /14:927 /15:1632 /16:12836 /17:6768 /18:11161
/19:23015 /20:32822 /21:35629 /22:49871 /23:43708 /24:248854
/25:44 /26:33 /27:51 /28:37 /29:29 /30:31
/31:0 /32:0

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
18566 2008 2054 MegaPath Corporation
6389 1701 3043 BellSouth.net Inc.
8402 1602 1931 OJSC "Vimpelcom"
22773 1464 2209 Cox Communications, Inc.
36998 1277 1284 Sudanese Mobile Telephone (ZA
30036 1230 1387 Mediacom Communications Corp
11492 1195 1233 Cable One
1785 1095 2058 PaeTec Communications, Inc.
6983 1036 1296 ITC^Deltacom
22561 964 1241 Digital Teleport, Inc

Complete listing at http://thyme.rand.apnic.net/au/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:897 2:847 3:3 4:17 5:1028 6:21
8:620 12:1879 13:3 14:869 15:11 16:3
17:18 18:19 20:21 23:574 24:1756 27:1632
31:1513 32:45 33:2 34:5 36:86 37:1939
38:910 39:5 40:182 41:2747 42:286 44:14
46:2024 47:10 49:692 50:846 52:12 54:44
55:7 56:4 57:26 58:1111 59:575 60:367
61:1461 62:1248 63:1983 64:4325 65:2342 66:4162
67:2112 68:1096 69:3286 70:888 71:487 72:2010
74:2573 75:325 76:303 77:1157 78:1065 79:661
80:1269 81:1059 82:650 83:675 84:589 85:1251
86:374 87:1021 88:557 89:1561 90:152 91:5680
92:612 93:1612 94:2072 95:1558 96:515 97:348
98:1041 99:41 100:32 101:406 103:3663 105:524
106:141 107:218 108:534 109:1975 110:973 111:1111
112:588 113:812 114:755 115:1051 116:1004 117:819
118:1181 119:1267 120:366 121:752 122:1820 123:1264
124:1371 125:1462 128:642 129:220 130:337 131:654
132:353 133:158 134:548 135:72 136:283 137:245
138:351 139:295 140:173 141:330 142:534 143:413
144:493 145:90 146:521 147:402 148:731 149:369
150:155 151:649 152:411 153:205 154:53 155:500
156:293 157:370 158:281 159:694 160:360 161:456
162:867 163:206 164:617 165:587 166:263 167:633
168:1038 169:124 170:1120 171:185 172:27 173:1589
174:693 175:518 176:1312 177:2461 178:1866 179:289
180:1616 181:878 182:1383 183:453 184:630 185:1054
186:2617 187:1457 188:1864 189:1255 190:7308 192:7006
193:5426 194:4022 195:3359 196:1328 197:1040 198:4711
199:5453 200:6024 201:2521 202:8906 203:8952 204:4485
205:2623 206:2747 207:2774 208:3984 209:3644 210:2970
211:1571 212:2150 213:1975 214:900 215:91 216:5397
217:1694 218:624 219:318 220:1274 221:585 222:326
223:543

End of report
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